Operating Instructions
Fronius Primo GEN24 3.0 / 3.0 Plus / 3.6 / 3.6 Plus 4.0 / 4.0 Plus / 4.6 / 4.6 Plus 5.0 / 5.0 Plus / 6.0 / 6.0 Plus
EN Operating Instructions
42,0426,0302,EN
024-02062024
Contents
Safety rules
9
Explanation of safety notices
9
Safety
9
General
9
Environmental conditions
10
Qualified personnel
10
Noise emission values
10
EMC measures
11
Backup power
11
Data protection
12
Copyright
12
Protective earthing (PE)
12
General information
13
Fronius Primo GEN24
15
Device concept
15
Function overview
15
Fronius UP
16
Scope of supply
16
Intended use
16
Thermal concept
17
Fronius Solar.web
17
Local communication
18
The various operating modes
19
Operating modes Explanation of symbols
19
Operating mode Inverter with battery
20
Operating mode Inverter with battery and several Smart Meters
20
Operating mode - inverter with battery, AC-coupled to another inverter
20
Operating mode Inverter with battery and backup power function
21
Operating mode Inverter with battery, Ohmpilot and backup power function
21
Operating mode Inverter with battery, further inverter and backup power function
21
Energy flow direction of the inverter
22
Operating states (only for systems with a battery)
22
Energy saving mode
24
General
24
Switch-off conditions
24
Switch-on conditions
24
Special case
24
Indication of energy saving mode
25
Suitable batteries
26
General
26
Limitations in operation
26
BYD Battery-Box Premium
26
LG FLEX
27
Manual system start
29
Requirements
29
Notification of system shutdown
29
Manual battery start after system shutdown
29
Starting backup power operation after a system shutdown
29
Protection of people and equipment
30
Central grid and system protection
30
WSD (wired shutdown)
30
RCMU
30
Insulation monitoring
30
AFCI - Arc Fault Circuit Interrupter (Arc Guard)
30
Safe state
31
Surge protective device
31
Control elements and connections
32
3
Connection area
32
Connection area divider
33
Ground electrode terminal
33
DC disconnector
34
Data communication area
34
Button functions and LED status indicator
35
Internal schematic connection diagram of the IOs
37
Backup power variant - PV Point (OP)
39
General
41
Explanatory note - PV Point/PV Point Comfort
41
PV Point (OP)
41
PV Point Comfort
42
Backup power variant - Full Backup
43
General
45
Prerequisites for backup power mode
45
Transitioning from feeding energy into the grid to backup power mode
45
Transitioning from backup power mode to feeding energy into the grid
45
Backup power and energy saving mode
46
Automatic switch to backup power including backup power circuits and 1-pin separation, e.g. 47
Austria or Australia
Functions
47
Transitioning from feeding energy into the grid to backup power mode
47
Transitioning from backup power mode to feeding energy into the grid
47
Automatic switch to backup power all-pin separation, e.g. Germany, France, UK, Spain
48
Functions
48
Transitioning from feeding energy into the grid to backup power mode
48
Transitioning from backup power mode to feeding energy into the grid
49
Automatic switch to backup power all-pin separation, Italy
50
Functions
50
Transitioning from feeding energy into the grid to backup power mode
50
Transitioning from backup power mode to feeding energy into the grid
51
Manual switch to backup power 1-pin separation, e.g. Australia / 2-pin separation, e.g. Ger- 52
many
Functions
52
Transitioning from feeding energy into the grid to backup power mode
52
Transitioning from backup power mode to feeding energy into the grid
53
Installation
55
General
57
Quick-lock system
57
Warning notices on the device
57
System component compatibility
59
Installation location and position
60
Choosing the location of the inverter
60
Choosing the location of third-party batteries
61
Installation position of inverter
62
Install the mounting bracket and hang up the inverter
64
Selecting the fixing material
64
Properties of the mounting bracket
64
Do not deform the mounting bracket
64
Fitting the mounting bracket to a wall
64
Installing the mounting bracket on a mast or beam
65
Attaching the mounting bracket to mounting rails
66
Attaching the inverter to the mounting bracket
66
Prerequisites for connecting the inverter
67
Different cable types
67
Permissible cables for the electrical connection
67
Permissible cables for the data communication connection
68
Cable diameter of the AC cable
69
4
Cable diameter of the DC cable
69
Maximum alternating current fuse protection
69
Connecting the inverter to the public grid (AC side)
71
Safety
71
Connecting the inverter to the public grid (AC side)
71
Connecting solar module strings to the inverter
74
General comments regarding PV modules
74
Safety
74
Module array - general information
75
Module array configuration 3 6 kW
75
Connecting the solar module strings to the inverter
76
Connecting the battery to the inverter
80
Safety
80
Connecting the battery on the DC side
80
Connecting the LG FLEX ground conductor
84
Connecting backup power - PV Point (OP)
85
Safety
85
Installation
85
Testing backup power mode
89
Connecting backup power - Full Backup
90
Safety
90
Automatic switch to backup power 1-pin separation, e.g. Austria or Australia
90
Automatic switch to backup power 2-pin separation, e.g. Germany, France, UK, Spain
91
Automatic switch to backup power 2-pin double separation with ext. grid and system pro- 92
tection - e.g. Italy
Manual switch to backup power 1-pin separation, e.g. Australia / 2-pin separation, e.g. Ger- 92
many
Testing backup power mode
94
Connecting the data communication cable
95
Modbus participants
95
Routing data communication cables
96
Connecting the battery communication cable
98
Terminating resistors
98
Installing the WSD (wired shutdown)
100
Closing and commissioning the inverter
101
Closing the inverter's connection area/housing cover, and commissioning
101
Starting the inverter for the first time
101
Installation with the app
102
Installation using the web browser
102
Switching off current supply and restarting the inverter
104
De-energising the inverter and switching it on again
104
Settings - user interface of the inverter
105
User settings
107
User login
107
Selecting the language
107
Device configuration
108
Components
108
Functions andI/Os
109
Demand Response Modes (DRM)
110
Inverter
110
Energy management
113
Maximum permitted battery charging from the public grid
113
Energy management
113
Examples - Time-dependent battery control
114
Allowed battery control rules
116
PV power reduction
118
Load management
118
System
120
General
120
Update
120
5
Setup wizard
120
Restoring the factory settings
120
Event Log
120
Information
120
License Manager
121
Support
122
Communication
123
Network
123
Modbus
124
Remote control
126
Fronius Solar API
126
Internet Services
126
Safety and grid requirements
127
Country setup
127
Requesting inverter codes in Solar.SOS
127
Feed-in limitation
128
Dynamic power regulation with several inverters
129
I/O power management
132
Connection diagram - 4 relay
133
I/O power management settings - 4 relays
134
Connection diagram - 3 relay
135
I/O power management settings - 3 relays
136
Connection diagram - 2 relay
137
I/O power management settings - 2 relays
138
Connection diagram - 1 relay
139
I/O power management settings - 1 relay
140
Connecting a ripple control receiver to multiple inverters
140
Autotest (CEI 0-21)
141
Options
143
Surge protective device (SPD)
145
General
145
Safety
145
Scope of supply
145
De-energising the inverter
146
Installation
147
Commissioning the inverter
152
DC Connector Kit GEN24
154
General
154
General comments regarding PV modules
154
Safety
154
Scope of supply
155
De-energising the inverter
155
Installation
156
Commissioning the inverter
160
PV Point Comfort
161
Safety
161
Scope of supply
161
De-energising the inverter
162
Installation
163
Commissioning the inverter
169
Configuring PV Point Comfort
169
Testing backup power mode
170
Appendix
171
Care, maintenance and disposal
173
General
173
Cleaning
173
Maintenance
173
Safety
173
Operation in dusty environments
173
6
Disposal
174
Guarantee provisions
176
Fronius manufacturer's warranty
176
Components for switching to backup power
177
Components for automatic Full Backup backup power changeover
177
Components for manual Full Backup backup power changeover
178
Status codes and remedy
180
Display
180
Status Codes
180
Technical data
182
Fronius Primo GEN24 3.0 / 3.0 Plus
182
Fronius Primo GEN24 3.6 / 3.6 Plus
185
Fronius Primo GEN24 4.0 / 4.0 Plus
189
Fronius Primo GEN24 4.6 / 4.6 Plus
192
Fronius Primo GEN24 5.0 / 5.0 Plus
196
Fronius Primo GEN24 6.0 / 6.0 Plus
200
WLAN
203
Technical data of surge protective device DC SPD type 1+2 GEN24
204
Explanation of footnotes
204
Integrated DC disconnector
205
Circuit diagrams
207
Fronius Primo GEN24 and BYD Battery-Box Premium HV
209
Circuit Diagram
209
Fronius Primo GEN24 with two BYD Battery-Box Premium HV connected in parallel
210
Circuit Diagram
210
Fronius Primo GEN24 with three BYD Battery-Box Premium HV connected in parallel
211
Circuit Diagram
211
Fronius Primo GEN24 and LG FLEX
212
Circuit Diagram
212
Circuit Diagram - PV Point (OP)
213
Circuit Diagram
213
Circuit Diagram - PV Point (OP) Australia
214
Circuit Diagram
214
Backup power terminal - PV Point (OP) with battery only for France
215
Circuit Diagram
215
Backup power terminal - PV Point (OP) manual changeover
216
Circuit Diagram
216
PV Point Comfort
217
Circuit Diagram
217
Automatic switch to backup power 1-pin single separation - e.g. Austria
218
Circuit Diagram
218
Automatic switch to backup power 1-pin single separation - e.g. Australia
219
Circuit Diagram
219
Automatic switch to backup power 2-pin single separation - e.g. Germany
220
Circuit Diagram
220
Automatic switch to backup power 2-pin single separation - e.g. France
221
Circuit Diagram
221
Automatic switch to backup power 2-pin single separation - e.g. UK
222
Circuit Diagram
222
Automatic switch to backup power 2-pin single separation - e.g. Spain
223
Circuit Diagram
223
Automatic switch to backup power 2-pin double separation with ext. grid and system protec- 224
tion - e.g. Italy
Circuit Diagram
224
Fronius Primo GEN24 with Enwitec Box
225
Circuit Diagram
225
Manual switch to backup power 1-pin separation, e.g. Australia
226
Circuit Diagram
226
Manual switch to backup power 2-pin separation, e.g. Germany
227
Circuit Diagram
227
Surge protective device (SPD)
228
7
Circuit Diagram
228
Dimensions of the inverter
229
Fronius Primo GEN24 3 - 6 kW
231
Fronius Primo GEN24 3 - 6 kW
231
8
Safety rules
Explanation of safety notices
WARNING!
Indicates a potentially hazardous situation.
Death or serious injury may result if appropriate precautions are not taken.
CAUTION!
Indicates a situation where damage could occur.
If not avoided, minor injury and/or damage to property may result.
NOTE! Indicates a risk of flawed results and possible damage to the equipment.
If you see any of the symbols depicted in the "Safety rules" chapter, special care is required.
Safety
CAUTION!
Danger from crushing due to the incorrect handling of attachments and connection parts. Injuries to limbs may result.
When lifting up, putting down and attaching the inverter, use the integrated grips.
When fitting attachments, ensure that no limbs are located between the attachment and the inverter.
Do not hold onto the individual poles on the terminals when locking and unlocking.
General
The device has been manufactured in line with the state of the art and according to recognised safety standards. In the event of incorrect operation or misuse, there is a risk of: - Serious or fatal injury to the operator or third parties - Damage to the device and other material assets belonging to the operating
company
All personnel involved in commissioning, maintenance and servicing of the device must: - Be suitably qualified - Have knowledge of and experience in dealing with electrical installations - Read and follow these Operating Instructions carefully
In addition to the Operating Instructions, all applicable local rules and regulations regarding accident prevention and environmental protection must also be followed.
9
All safety and danger notices on the device: - Must be kept in a legible state - Must not be damaged - Must not be removed - Must not be covered, pasted or painted over
Only operate the device when all protection devices are fully functional. If the protection devices are not fully functional, there is a risk of: - Serious or fatal injury to the operator or third parties - Damage to the device and other material assets belonging to the operating
company
Any safety devices that are not fully functional must be repaired by an authorized specialist before the device is switched on.
Never bypass or disable protection devices.
For the location of the safety and danger notices on the device, refer to the chapter headed "Warning notices on the device" in the Operating Instructions for your device.
Faults that could compromise safety must be remedied before switching on the device.
Environmental conditions
Operation or storage of the device outside the stipulated area will be deemed as not in accordance with the intended purpose. The manufacturer accepts no liability for any damage resulting from improper use.
Qualified personnel
The servicing information contained in these operating instructions is intended only for the use of qualified service engineers. An electric shock can be fatal. Do not carry out any actions other than those described in the documentation. This also applies to qualified personnel.
All cables and leads must be secured, undamaged, insulated and adequately dimensioned. Loose connections, scorched, damaged or inadequately dimensioned cables and leads must be immediately repaired by authorised personnel.
Maintenance and repair work must only be carried out by an authorised specialist.
It is impossible to guarantee that bought-in parts are designed and manufactured to meet the demands made on them, or that they satisfy safety requirements. Use only original spare parts (also applies to standard parts).
Do not carry out any alterations, installations, or modifications to the device without first obtaining the manufacturer's permission.
Components that are not in perfect condition must be changed immediately.
Noise emission values
The sound power level of the inverter is specified in the Technical data.
The device is cooled as quietly as possible with the aid of an electronic temperature control system; this depends on the amount of converted power, the ambient temperature, the level of soiling of the device, etc.
It is not possible to provide a workplace-related emission value for this device because the actual sound pressure level is heavily influenced by the installation
10
situation, the grid quality, the surrounding walls and the properties of the room in general.
EMC measures
In certain cases, even though a device complies with the standard limit values for emissions, it may affect the application area for which it was designed (e.g., when there is equipment that is susceptible to interference at the same location, or if the site where the device is installed is close to either radio or television receivers). If this is the case, then the operator is obliged to take action to rectify the situation.
Backup power
This system has backup power functions, which enable a replacement power supply to be established in the event of a failure of the public grid.
Where an automatic backup power supply is installed, a backup power warning notice (https://www.fronius.com/en/search-page, item number: 42,0409,0275) must be fitted on the electrical distributor.
Maintenance and installation work in the home network requires both disconnection on the utility side and deactivation of the replacement power mode by opening the integrated DC disconnector on the inverter.
The function of the residual current devices for the backup power supply must be checked at regular intervals (according to the manufacturer's instructions), but at least twice a year. A description on how to perform the test operation can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).
Depending on the insolation conditions and the battery state of charge, the backup power supply is automatically deactivated and activated. This can cause the backup power supply to unexpectedly return from standby mode. Therefore, installation work can only be performed on the home network when the backup power supply is deactivated.
Influencing factors on the total power in backup power mode:
Reactive power Electrical loads with a power factor not equal to 1 also require reactive power in addition to effective power. The reactive power also loads the inverter. Therefore, to correctly calculate the actual total power, it is not the rated power of the load that is relevant, but the current caused by effective and reactive power.
Devices with a high reactive power are mainly electric motors such as: - Water pumps - Circular saws - Blowers and fans
High starting current Electrical loads that need to accelerate a large mass usually require a high starting current. This can be up to 10 times higher than the nominal current. The maximum current of the inverter is available for the starting current. Loads with too high starting currents therefore cannot be started/operated, even though the nominal power of the inverter suggests that they can. When dimensioning of the backup power circuit, the connected load power and any starting current must also be taken into account.
Devices with high starting currents are, for example:
11
- Devices with electric motors (e.g. lifting platform, circular saws, planing bench)
- Devices with large transmission ratio and flywheel mass - Devices with compressors (e.g. compressed air compressors, air conditioning
systems)
IMPORTANT! Very high starting currents can cause short-term distortion or a drop in output voltage. The simultaneous operation of electronic devices in the same backup power supply system should be avoided.
IMPORTANT! The inverter may only be operated within the limits of its technical capabilities. Operation outside of its technical capabilities can cause the inverter to shut down.
Data protection
The user is responsible for the safekeeping of any changes made to the factory settings. The manufacturer accepts no liability for any deleted personal settings.
Copyright
Copyright of these operating instructions remains with the manufacturer.
The text and illustrations are all technically correct at the time of printing. We reserve the right to make changes. The contents of the operating instructions shall not provide the basis for any claims whatsoever on the part of the purchaser. If you have any suggestions for improvement, or can point out any mistakes that you have found in the instructions, we will be most grateful for your comments.
Protective earthing (PE)
Connection of a point in the device, system or installation to earth to protect against electric shock in the event of a fault. When installing a safety class 1 inverter (see Technical data), the ground conductor connection is required.
When connecting the ground conductor, ensure that it is secured against accidental disconnection. All the points listed in Connecting the inverter to the public grid (AC side) on page 71 must be observed. When using cable glands, ensure that the ground conductor will be strained last in the event of failure of the cable gland. When connecting the ground conductor, the minimum cross-section requirements specified by the respective national standards and guidelines must be observed.
12
General information
13
14
Fronius Primo GEN24
Device concept
The inverter transforms the direct current generated by the solar modules into alternating current. This alternating current is fed into the public grid and synchronized with the grid voltage in use. Moreover, the solar energy can also be stored in a connected battery for later use.
The inverter is intended for use in grid-connected photovoltaic systems. The inverter has backup power functions and switches to backup power mode if it has been wired accordingly*.
The inverter automatically monitors the public grid. Whenever conditions in the electric grid are inconsistent with standard conditions (for example, grid switchoff, interruption), the inverter will immediately stop producing power and interrupt the supply of power into the grid. The grid is monitored by monitoring the voltage, frequency and islanding conditions.
After installation and commissioning, the inverter's operation is fully automatic; the inverter draws the maximum possible power from the PV modules. Depending on the operating point, this power is used in the home, stored in a battery* or fed into the grid.
As soon as the energy provided by the PV modules is no longer sufficient, the power from the battery is fed into the home. Depending on the setting, power may also be obtained from the public grid in order to charge the battery*.
When its temperature gets too high, the inverter automatically reduces the output or charging power, or switches off completely, in order to protect itself. Reasons for the temperature being too high include a high ambient temperature or insufficient heat dissipation (for example, inadequate heat dissipation when installed in switch cabinets).
*
Depending on the device variant, suitable battery, appropriate wiring, set-
tings and local standards and guidelines.
Function overview
Function Backup power variant - PV Point (OP)
Battery connection*
Backup power variant - Full Backup
Primo GEN24
Available as an option**
Available as an option**
Primo GEN24 Plus
*
For suitable batteries, see chapter Suitable batteries.
** The functions are optionally available via Fronius UP (see chapter Fronius
UP).
15
Fronius UP
With Fronius UP*, the inverter can be expanded by the authorised specialist to include optionally available functions (see chapter Function overview).
*
The availability of Fronius UP varies from country to country. For more in-
formation on Fronius UP and availability, see Installation guide: Fronius
GEN24 & GEN24 Plus.
Scope of supply
(1) Housing cover (2) Inverter (3) Mounting bracket (illustration) (4) Quick Start guide
Intended use
The inverter is designed to convert direct current from PV modules into alternating current and feed this power into the public grid. A backup power mode* is possible provided that appropriate cabling has been installed.
The following are considered improper use: - Utilisation for any other purpose, or in any other manner - Alterations to the inverter are not permitted unless expressly recommended
by Fronius - Installation of components is not permitted unless expressly recommended
or sold by Fronius
The manufacturer is not responsible for any damage resulting from improper use. All warranty claims are considered void in such cases.
Intended use also means: - Carefully reading and obeying all the instructions, as well as safety
and danger notices in the Operating Instructions - Installation in accordance with chapter "Installation" from page 55.
When designing the photovoltaic system, ensure that all components of the photovoltaic system are operated exclusively within their permissible operating range.
Take into account the grid operator's regulations for energy fed into the grid and connection methods.
16
The Fronius GEN24 inverter is a grid-connected inverter with a backup power
function it is not a stand-alone inverter. The following restrictions must there-
fore be observed in backup power mode:
- Backup power mode may be in operation for at max. 2000 hours - Backup power mode may be in operation for more than 2000 operating hours
if 20% of the duration of the inverter's grid power feed operation is not ex-
ceeded at the relevant time.
*
Depending on the device variant, suitable battery, appropriate wiring, set-
tings, and local standards and guidelines.
Thermal concept
Ambient air is drawn in by the fan on the front side and blown out at the device sides. The even heat dissipation allows several inverters to be installed next to each other.
NOTE!
Risk due to insufficient cooling of the inverter. This may result in a loss of power in the inverter.
Do not block the fan (for example, with objects that protrude through the touch guard).
Do not cover the ventilation slots, even partially. Make sure that the ambient air can always flow through the inverter's ventila-
tion slots unimpeded.
Fronius Solar.web
With Fronius Solar.web or Fronius Solar.web Premium, the PV system can be easily monitored and analysed by the system owner and installer. If configured accordingly, the inverter transmits data such as power, yields, load, and energy balance to Fronius Solar.web. For more information see Solar.web - monitoring & analysis.
Configuration is carried out via the setup wizard, see chapter Installation with the app on page 102 or Installation using the web browser on page 102.
Prerequisites for configuration:
- Internet connection (download: min. 512 kBit/s, upload: min. 256 kBit/s)*. - User account on solarweb.com. - Completed configuration via the setup wizard.
*
The information given does not constitute an absolute guarantee of fault-
less function. High error rates in the transmission, reception fluctuations
or transmission drop-outs can have a negative effect on the data transfer.
17
Fronius recommends testing the Internet connection on site according to the minimum requirements.
Local communication
The inverter can be found via the Multicast DNS protocol (mDNS). It is recommended to search for the inverter by the assigned host name.
The following data can be retrieved via mDNS: - NominalPower - Systemname - DeviceSerialNumber - SoftwareBundleVersion
18
The various operating modes
Operating modes Explanation of symbols
PV module generates direct current
Fronius GEN24 inverter converts direct current into alternating current and charges the battery (a battery support is required to charge the battery, see Function overview on page15). The integrated system monitoring enables the inverter to be integrated into a network by means of WLAN.
Additional inverter in the system converts the direct current into alternating current. However, it cannot charge a battery, and is not available in backup power mode.
Battery is coupled to the inverter on the direct current side, and stores electrical energy.
Fronius Ohmpilot to use excess energy to heat water.
Primary meter records the system's load curve and provides measurement data for energy profiling in Fronius Solar.web. The primary meter also controls the dynamic feed-in control.
Secondary meter records the load curve of individual loads (e.g. washing machine, lamps, TV, heat pump, etc.) in the consumption branch and provides measurement data for energy profiling in Fronius Solar.web.
Loads in the system are the loads connected in the system.
Additional loads and producers in the system are connected to the system by means of a Smart Meter.
PV Point is a non-uninterruptible 1phase backup power circuit that supplies electrical devices with up to 3 kW if sufficient power is available from the PV modules or the battery.
Full Backup the inverter is prepared for backup power mode. The backup power mode must be implemented in the switch cabinet by the electrician performing the installation. The PV system operates in a stand-alone manner in backup power mode.
Grid supplies the loads in the system if insufficient power is being generated by the PV modules or supplied by the battery.
19
Operating mode Inverter with battery
In order to be able to obtain the highest rate of self-consumption with your PV system, a battery can be used to store excess energy. The battery is coupled to the inverter on the direct current side. Multiple current conversion is therefore not required, and the efficiency is increased.
0 0 1 67
1
Operating mode Inverter with battery and several Smart Meters
Operating mode - inverter with battery, ACcoupled to another inverter
20
0 0 1 67
2
0 0 1 67
1
0
01
6 7
1
-+
Operating mode Inverter with battery and backup power function
IMPORTANT! In backup power mode, an increased nominal frequency is used in order to prevent undesired parallel operation with other power generators.
In the fully equipped hybrid PV system, the inverter can: - Supply loads in the house - Store excess energy in the battery and/or feed it into the grid - Supply connected loads in the event of a power failure
0 0 1 67
1
-+
Operating mode Inverter with battery, Ohmpilot and backup power function
IMPORTANT! In the fully equipped hybrid PV system with a Fronius Ohmpilot, the Ohmpilot cannot be operated in the event of a power failure for regulatory reasons. It is therefore sensible to install the Ohmpilot outside of the backup power branch.
0 0 1 67
1
-+
Operating mode Inverter with battery, further inverter and backup power function
In the hybrid photovoltaic system, batteries must only be connected to one inverter with battery support. Batteries cannot be split between multiple inverters with battery support. However, depending on the battery manufacturer, several batteries can be combined on one inverter.
21
-+
0 0 1 67
1
Energy flow direction of the inverter
In the case of hybrid inverters, there are four different energy flow directions:
(1)
(4)
(2)
DC=
AC~
(3)
-+
DC=
(1) PV module inverter load/grid (2) PV module inverter battery* (3) Battery inverter load/grid* (4) Grid inverter battery*
* depending on the settings and local standards and regulations.
Operating states (only for systems with a battery)
Battery systems distinguish different operating states. In this case, the relevant current operating state is displayed on the user interface of the inverter or in Solar.web.
Operating state Normal operation
Description Energy is stored or drawn, as required.
22
Operating state
Description
Min. state of charge (SOC) Battery has reached the minimum SOC set or
achieved
specified by the manufacturer. The battery cannot
be discharged any further.
Energy saving mode (standby)
The system has been put into energy saving mode. Energy saving mode is automatically ended as soon as sufficient excess energy is available again.
Start
The storage system starts from energy saving mode (standby).
Forced re-charging
The inverter re-charges the battery, in order to maintain the set minimum SOC (state of charge) or the SOC specified by the manufacturer (protection against deep discharge).
Deactivated
The battery is not active. It has either been deactivated/switched off, or an error means that no communication with the battery is possible.
23
Energy saving mode
General
Energy saving mode (standby mode) is used to reduce the self-consumption of the system. Both the inverter and the battery automatically switch to energy saving mode under certain conditions.
The inverter switches to energy saving mode if the battery is flat and no PV power is available. Only the inverter's communication with the Fronius Smart Meter and Fronius Solar.web is maintained.
Switch-off conditions
If all the switch-off conditions are met, the battery switches into energy saving mode within ten minutes. This time delay ensures that the inverter can at least be restarted.
The battery state of charge is less than or equal to the input minimum state of charge.
The current charging or discharging power of the battery is less than 100 W.
Less than 50 W is available for charging the battery. The power of feeding into the public grid is at least 50 W less than the power currently required in the home network.
The inverter automatically switches into energy saving mode, following the battery.
Switch-on conditions
If one of the following conditions is met for at least 30 seconds, energy saving
mode is ended:
- Energy saving mode is no longer permissible owing to a changed setting on the user interface of the inverter.
- If dynamic power reduction of 0 is set, or if the system is operating in backup power mode, the power of feeding into the public grid is always less than the
required power in the home network.
There is a separate condition for this case (dynamic power reduction < 300 W
or active backup power mode):
- If the PV power is above a specified threshold, energy saving mode is ended.
- Battery charging from the public grid is requested via the user interface of the inverter.
- The battery is being recharged in order to restore the minimum state of charge or perform calibration.
Special case
If the inverter does not operate for 12 minutes (e.g. fault), or there is an interruption in the electrical connection between the inverter and the battery and there is no backup power mode, the battery switches to energy-saving mode in any case. This reduces self discharge of the battery.
24
Indication of energy saving mode
During energy saving mode:
- Operating LED for the inverter lights up orange (see Button functions and LED status indicator on page 35).
- The user interface of the inverter can be reached. - All the available data is saved and transmitted to Solar.web. - The real-time data can be seen on Solar.web.
Energy saving mode is shown on the user interface of the inverter and in Solar.web by an "i" beside the battery symbol in the system overview.
%
5
Energy-saving mode
25
Suitable batteries
General
Fronius explicitly points out that the third-party batteries are not Fronius products. Fronius is not the manufacturer, distributor or retailer of these batteries. Fronius accepts no liability and offers no service or guarantees for these batteries.
Obsolete firmware/software states may lead to incompatibilities between the inverter and the battery. In this case, the following steps are to be performed: 1 Update battery software see the battery documentation. 2 Update inverter firmware see Update on page 120.
Read this document and the Installation Instructions before installing and commissioning the external battery. The documentation is either enclosed with the external battery or can be obtained from the battery manufacturer or their service partners
All documents associated with the inverter can be found at the following address:
https://www.fronius.com/en/solar-energy/installers-partners/service-support/ tech-support
Limitations in operation
If the DC voltage exceeds 520 V, the battery can no longer be charged or discharged. The voltage of 520 V is rarely exceeded during normal operation of the inverter.
When the output power of the inverter is reduced, the operating point shifts towards higher DC voltages. The following conditions during normal operation can lead to the DC voltage of 520 V being exceeded: - Overdimensioning of the PV generator. - Feed-in limitation (e.g. zero feed-in). - Specifications of the grid operator (e.g. mains voltage-dependent power re-
duction). - Backup power mode. If the 520 V voltage is exceeded during backup power,
backup power operation may be restricted. Therefore, an open circuit voltage of max. 520 V is recommended.
BYD BatteryBox Premium
BYD Battery-Box Premium HVS Number of battery modules Fronius Primo GEN24 * Fronius Primo GEN24 Plus Battery parallel operation**
BYD Battery-Box Premium HVM Number of battery modules
5.1 7.7 10.2 12.8
2
3
4
5
8.3 11.0 13.8 16.6 19.3 22.1
3
4
5
6
7
8
26
BYD Battery-Box Premium HVM Fronius Primo GEN24 * Fronius Primo GEN24 Plus Battery parallel operation**
8.3 11.0 13.8 16.6 19.3 22.1
*
Battery support optionally available.
** Max. 3 batteries with the same capacity can be combined.
IMPORTANT! According to the manufacturer's specifications, the max. DC cable length is 20 m. More detailed information can be found in the manufacturer's documents.
IMPORTANT! To ensure reliable operation with a BYD Battery-Box Premium, the following switch-on sequence for the system must always be observed.
1
Switch on the battery.
2
Set the DC disconnector to the "On"
switch position. Switch on the auto-
matic circuit breaker.
LG FLEX
LG FLEX Number of battery modules
8.6 12.9 17.2
2
3
4
27
LG FLEX Fronius Primo GEN24 *
Fronius Primo GEN24 Plus
8.6 12.9 17.2
*
Battery support optionally available.
IMPORTANT! According to the manufacturer's specifications, the max. DC cable length is 30 m. More detailed information can be found in the manufacturer's documents.
Switching on the battery
1
Pull off the cover to the right.
2
Pull off the cover of the DC discon-
nector to the front. Set the DC discon-
nector to the "On" switch position.
To refit the battery, follow the steps listed above in reverse order.
28
Manual system start
Requirements
There is no energy available from the PV modules or from the public grid. If backup power operation or battery operation are not possible (e.g. deep discharge protection of the battery), the inverter and battery switch off.
Notification of system shutdown
Status codes about the inactive state of the battery are displayed on the user interface of the inverter or sent via Solar.web by means of SMS or e-mail (only if notification via Solar.web is configured accordingly).
Manual battery start after system shutdown
As soon as energy is available again, the inverter starts operation automatically; however the battery must be started manually. The switch-on sequence must be observed for this, see chapter Suitable batteries on page 26.
Starting backup power operation after a system shutdown
The inverter requires energy from the battery to start backup power operation. This is done manually on the battery; further information on the power supply for restarting the inverter via the battery can be found in the battery manufacturer's Operating Instructions.
29
Protection of people and equipment
Central grid and system protection
The inverter offers the option to use the integrated AC relays as coupling switches in conjunction with a central grid and system protection unit (in accordance with VDE-AR-N 4105:2018:11 §6.4.1). For this purpose, the central trigger device (switch) must be integrated into the WSD chain as described in the chapter "WSD (Wired Shut Down)".
WSD (wired shutdown)
The wired shutdown (WSD) interrupts the inverter feeding energy into the grid if the trigger device (switch, e.g. emergency stop or fire alarm switch) has been activated.
If an inverter (secondary device) fails, it is bypassed and the other inverters continue operating. If a second inverter (secondary device) or the inverter (primary device) fails, the operation of the entire WSD chain is interrupted.
For installation, see Installing the WSD (wired shutdown) on page 100.
RCMU
The inverter is equipped with a universal current-sensitive residual current monitoring unit (RCMU = Residual Current Monitoring Unit) in accordance with IEC 62109-2 and IEC63112. This device monitors residual currents from the PV module to the AC output of the inverter and disconnects the inverter from the grid in the event of unauthorised residual current.
Insulation monitoring
In the case of PV systems with ungrounded solar modules, the inverter checks the resistance between the positive or negative pole of the PV system and the ground potential before feeding energy into the grid. In the event of a short circuit between DC+ or DC- cable and ground (e.g. due to inadequately insulated DC cables or damaged solar modules), an infeed into the grid is prevented.
AFCI - Arc Fault Circuit Interrupter (Arc Guard)
AFCI (Arc Fault Circuit Interrupter) protects against arcing faults and in the narrower sense is a protection device against contact faults. The AFCI evaluates any DC-side faults that occur in the current and voltage curve with an electronic circuit and switches off the circuit when a contact fault is detected. This prevents overheating on poor contacts and ideally possible fires.
CAUTION!
Danger due to incorrect or unprofessional DC installation. The result is risk of damage and in turn, risk of fire to the PV system due to inadmissible thermal loads that arise with an arc.
Check plug connections are in good condition. Repair incorrect insulation as appropriate. Complete connections as per the specifications.
IMPORTANT! Fronius will not accept any costs associated with production downtimes, installer
30
costs, etc., that may arise as the result of a detected arc and its consequences. Fronius accepts no liability for damage that can occur despite the presence of the integrated Arc Fault Circuit Interrupter/extinguishing system ( e.g. caused by a parallel arc).
IMPORTANT! Active PV module electronics (e.g., power optimiser) can impair the function of the Arc Fault Circuit Interrupter. Fronius does not guarantee that the Arc Fault Circuit Interrupter will work correctly in combination with active PV module electronics.
Reconnection behaviour After detection of an arc, feeding energy into the grid is interrupted for at least 5 minutes. Depending on the configuration, feeding energy into the grid is then automatically resumed. If several arcs are detected within a period of 24 hours, feeding energy into the grid can also be permanently interrupted until a manual reconnection has taken place."
Safe state
If one of the following safety devices is triggered, the inverter switches to a safe state: - WSD - Isolation monitoring - RCMU
In the safe state, the inverter no longer feeds energy in and is disconnected from the grid by opening the AC relays.
Surge protective device
The inverter is equipped with an integrated surge protective device on the DC and AC side in accordance with IEC 62109-2. The surge protective device protects the system against damage in the event of a surge.
31
Control elements and connections
Connection area
(1) 2x 5-pin DC push-in terminal (2) Push-in WSD (wired shutdown) terminal (3) Push-in terminals in the data communication area (Modbus, digital inputs
and outputs) (4) 3-pin push-in terminal for PV Point (OP) (5) 3-pin AC push-in terminal (6) Cable bushing/cable gland AC (7) 6-pin ground electrode terminal (8) Cable bushing/cable gland in the data communication area 32
(9) Connection area divider (10) 10x DC cable bushings (11) Optional cable bushing (M16) (12) Optional cable bushing (M16 - M20) (13) Optional cable bushing (M16 - M32) (14) Optional cable bushing (M16 - M25)
Connection area divider
The connection area divider separates the high-voltage conductors (DC and AC) from the signal lines. To make it easier to reach the connection area, the divider can be removed for the connection work, and must be re-inserted.
(1) Integrated cable duct (2) Recesses for removing the con-
nection area divider (3) Snap tabs for locking/unlocking (4) Defined breaking point for the
Datcom connection
The integrated cable duct (1) allows for the lines to be laid from one area of the inverter to the other. As a result, multiple inverters can be easily installed next to each other.
Ground electrode terminal
The ground electrode terminal allows additional components to be earthed, such as:
- AC cable - Module mounting system - Ground rod
33
DC disconnector
Data communication area
The DC disconnector has 3 switch settings:
(1) Locked/off (turned to the left) (2) Off (3) On
IMPORTANT! In switch settings (1) and (3), a conventional padlock can be used to secure the inverter against being switched on/ off. The national guidelines must be complied with in this respect.
*Please not that the BAT (RJ45) interface is reserved for future use and not given at the moment.
Operating status LED WSD (wired shutdown) switch
Modbus 0 (MB0) switch
Indicates the inverter operating status.
Defines the inverter as a WSD primary device or WSD secondary device.
Position 1: WSD primary device Position 0: WSD secondary device
Switches the terminating resistor for Modbus 0 (MB0) on/off.
Modbus 1 (MB1) switch
Position 1: Terminating resistor on (factory setting) Position 0: Terminating resistor off
Switches the terminating resistor for Modbus 1 (MB1) on/off.
Position 1: Terminating resistor on (factory setting) Position 0: Terminating resistor off
34
Optical sensor Communication LED
LAN 1
LAN 2 I/Os terminal
WSD terminal Modbus terminal
To operate the inverter. See chapter Button functions and LED status indicator on page 35.
Indicates the inverter connection status.
Ethernet connection for data communication (e.g. WLAN router, home network or for commissioning with a laptop see chapter Installation using the web browser on page 102).
Reserved for future functions. Only use LAN 1 to avoid malfunctions.
Push-in terminal for digital inputs/ outputs. See chapter Permissible cables for the data communication connection on page 68. The designations (RG0, CL0, 1/5, 2/6, 3/7, 4/8) on the terminal refer to the Demand Response Mode function, see chapter Functions andI/Os on page 109.
Push-in terminal for the WSD installation. See chapter "WSD (wired shutdown)" on page 30.
Push-in terminal for the installation of Modbus 0, Modbus 1, 12 V and GND (ground).
The data connection to the connected components is established via the Modbus terminal. The inputs M0 and M1 can be selected for this purpose. Max. 4 Modbus participants per input, see chapter Modbus participants on page 95.
Button functions and LED status indicator
1x WLAN access point 2x WPS 3-6 sec. Quit Service Message
Ok Standby Uncritical Error (flashing)
Critical Error
Connected Connecting (flashing)
Network Error
The status of the inverter is shown via the operating status LED. In the event of faults, carry out the individual steps in the Fronius Solar.start app.
The optical sensor is actuated by touching with a finger.
The status of the connection is shown via the communication LED. To establish the connection, carry out the individual steps in the Fronius Solar.start app.
35
Sensor functions
1x = WLAN Access Point (AP) is opened.
Flashing blue 2x = WLAN Protected Setup (WPS) is activated.
Flashing green 3 seconds (max. 6 seconds) = the service message is acknowledged.
Flashing white (rapidly)
LED status indicator The inverter is operating correctly.
Lights up green The inverter is performing the grid checks required by the applicable standards for feed-in mode.
Flashing green The inverter is in standby, is not operational (e.g. no feed-in at night) or is not configured.
Lights up yellow The inverter indicates a non-critical status.
Flashing yellow The inverter indicates a critical status and there is no grid power feed process.
Lights up red The inverter indicates a backup power overload.
Flashing red The network connection is being established via WPS. 2x = WPS search mode.
Flashing green The network connection is being established via WLAN AP. 1x = WLAN AP search mode (active for 30 minutes).
Flashing blue The network connection is not configured.
Lights up yellow
36
LED status indicator The inverter is operating correctly, a network fault is indicated.
Lights up red The network connection is active.
Lights up blue The inverter is performing an update.
/ Flashing blue There is a service message.
Lights up white
Internal schematic connection diagram of the IOs
On the V+/GND pin, it is possible to feed in a voltage of around 12.524 V (+ max. 20%) with an external power supply. The outputs IO 05 can then be operated with the external voltage. A maximum of 1 A can be drawn per output, with a maximum of 3 A allowed in total. The fuse protection must be located externally.
CAUTION!
Risk of polarity reversal at the terminals due to improper connection of external power supplies. This may result in severe damage to the inverter.
Check the polarity of the external power supply with a suitable measuring device before connecting it.
Connect the cables to the V+/GND outputs with the correct polarity.
IMPORTANT! If the total output (6 W) is exceeded, the inverter switches off the entire external power supply.
V+
V+
12 V DC
V+ M0+ SHIELD M1+ V+
500 mA (1)
GND
GND
M0+ M0-
SHIELD SHIELD
M1+ M1-
GND M0SHIELD M1GND
V+ V+ IO0 IO2 IO4 IN6 IN8 IN10
IO1 IO0
IO3 IO2
IO5 IO4
IN7 IN6
IN9 IN8
IN11 IN10
GND GND
IO1 IO3 IO5 IN7 IN9 IN11
12 V 5 V
USB TYP A
V+
V+
GND GND
(1) Power limitation
37
38
Backup power variant - PV Point (OP)
39
40
General
Explanatory note - PV Point/PV Point Comfort
IMPORTANT! If several backup power variants are available, please note that only one backup power variant may be installed and configured.
The inverter can provide 220 240 V at the PV Point/PV Point Comfort. A corresponding configuration must be set up during commissioning.
At 220 240 V output voltage, max. 13 A AC continuous current is available.
Example: 220 V *13 A = 2860 W 230 V *13 A = max. 3 kW
In backup power mode, some electrical appliances cannot function properly as starting currents are too high (for example, fridges and freezers). It is recommended to switch off non-essential loads during backup power mode. Overload capacity of 35 % is possible for a duration of 5 seconds, depending on the capacity of the PV modules and/or the battery at that moment in time.
There is a brief interruption when switching from grid-connected mode to backup power mode. For this reason, the backup power function cannot be used as an uninterruptible power supply, for example for computers.
If no energy from the battery or the PV modules is available in backup power mode, backup power mode ends automatically. If sufficient energy becomes available from the PV modules once again, backup power mode starts again automatically.
In the event of excessive consumption, backup power mode is stopped and the "backup power overload" status code is displayed on the inverter's LED status indicator (see Button functions and LED status indicator on page 35). The maximum power in backup power mode according to the technical data must be observed.
PV Point (OP)
With the PV Point, in the event of a failure of the public grid, 1phase electrical devices can be connected to the Opportunity Power (OP) terminal and supplied with a maximum power of 3 kW, if enough power is available from the PV modules or an optional battery. In grid-connected operation, the OP terminal is not supplied with voltage, therefore the connected loads will not be continuously supplied with power.
IMPORTANT! A relay-based network switching setup is not possible.
41
Installation Instructions, see chapter Connecting backup power - PV Point (OP) on page 85.
PV Point Comfort
With PV Point Comfort, 1-phase electrical devices are continuously supplied up to a maximum power of 3 kW. Switching between grid-connected and backup power mode takes place automatically. In the event of a failure of the public grid or the inverter, the loads on the PV Point Comfort continue to be supplied. When the public grid is available again and stability is assured, the PV Point Comfort automatically switches to grid-connected operation and backup power mode is terminated.
IMPORTANT! There must be sufficient power from the PV modules or a battery for backup power mode to run.
For further information and the Installation Instructions, see PV Point Comfort on page 161.
42
Backup power variant - Full Backup
43
44
General
Prerequisites for backup power mode
IMPORTANT! If several backup power variants are available, please note that only one backup power variant may be installed and configured.
In order to use the inverter's backup power function, the following prerequisites
must be fulfilled:
- The inverter must support the backup power variant Full Backup (see chapter Function overview on page 15).
- A battery suitable for backup power use must be installed and configured. - Correct cabling of the backup power system in the electrical installation or
usage of a switch box from Enwitec (see chapter Components for automatic
Full Backup backup power changeover on page 177 or Circuit diagrams on
page 207).
- Mount and configure the Fronius Smart Meter at the feed-in point. - Attach a warning notice for the backup power supply (https://www.froni-
us.com/en/search-page, item number: 42,0409,0275) on the electrical dis-
tributor.
- Apply the necessary settings in the "Devices and system components" "Functions and pins" "Backup power" menu area and activate backup
power.
- Follow the backup power checklist (https://www.fronius.com/en/searchpage, item number: 42,0426,0365) step by step and confirm.
Transitioning from feeding energy into the grid to backup power mode
1. The public grid is monitored by the inverter's internal grid and system protection unit and by the Fronius Smart Meter connected to it.
2. The public grid fails or specific grid parameters are dropped below or exceeded.
3. The inverter carries out the measures necessary according to the country standard and then switches off.
4. The inverter starts backup power mode after a checking period. 5. All loads in the household that are in the backup power circuit are supplied
by the battery and the PV modules. The remaining loads are not supplied
with power and are safely isolated.
Transitioning from backup power mode to feeding energy into the grid
1. The inverter is operating in backup power mode. 2. The public grid is functioning correctly again. 3. The Fronius Smart Meter monitors the grid parameters on the public grid
and passes this information to the inverter.
4. The stability of the returned public grid is determined by checking the measured values of the Fronius Smart Meter.
5. Backup power mode is terminated automatically or manually depending on the design of the backup power switchover facility.
6. All circuits are reconnected to the public grid and are supplied by the grid. 7. The inverter can start feeding energy into the grid again after performing the
grid checks required by the relevant standard.
45
Backup power and energy saving mode
Under the following conditions, the battery and the inverter are switched to energy saving mode after a waiting time of 8 - 12 minutes and backup power mode is ended: - The battery is discharged to the minimum state of charge and no energy is
coming from the PV modules. - The inverter is set to energy saving mode (standby mode).
If the battery and inverter are in energy saving mode, the system is reactivated by the following: - Enough energy is available from the PV modules. - The public grid is functioning again. - The battery is switched off and on.
46
Automatic switch to backup power including backup power circuits and 1-pin separation, e.g. Austria or Australia
Functions
- Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
- Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.
- Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
- Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load
of the backup power circuits must not exceed the nominal output of the in-
verter. Furthermore, the performance of the connected battery must also be
considered.
Transitioning from feeding energy into the grid to backup power mode
1. The public grid is monitored by the inverter's internal grid and system protection unit and by the Fronius Smart Meter connected to it.
2. Failure of the public grid. 3. The inverter carries out the measures necessary according to the country
standard and then switches off.
Contactor K1 drops out. This disconnects the backup power circuits and the
inverter from the rest of the home network and from the public grid, as the
main contacts of contactor K1 open. The inverter activates relay K3, which
interrupts the supply to contactor K1. This prevents unintentional activation
of contactor K1 and thus a grid connection when voltage is restored in the
grid. The NC auxiliary contacts of contactor K1 send feedback to the inverter
that the contactor is open (a condition for starting backup power mode).
4. The NO contact of relay K3 gives additional feedback to the inverter on whether the locking was successfully performed by relay K3.
5. The inverter decides based on the contactors' feedback as well as the measurements on the inverter terminals and the Smart Meter that backup power
mode can be started.
6. After all the required activation tests have been carried out, the inverter starts backup power mode.
7. All loads in the backup power circuits are supplied with power. The remaining loads are not supplied with power and are safely isolated.
Transitioning from backup power mode to feeding energy into the grid
1. The inverter is operating in backup power mode. Contactor K1 to the public grid is open.
2. Public grid available again. 3. The Fronius Smart Meter monitors the grid parameters on the public grid
and passes this information to the inverter.
4. The stability of the returned public grid is determined by checking the measured values of the Fronius Smart Meter.
5. The inverter ends backup power mode and disconnects the outputs. 6. The inverter deactivates K3. Contactor K1 is reactivated. 7. All circuits are reconnected to the public grid and are supplied by the grid.
The inverter does not feed anything into the grid at this time.
8. The inverter can start feeding energy into the grid again after performing the grid checks required by the relevant standard.
47
Automatic switch to backup power all-pin separation, e.g. Germany, France, UK, Spain
Functions
- Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
- Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.
- Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
- Establishing a proper ground connection for backup power mode to ensure the protection devices function correctly.
- Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load
of the backup power circuits must not exceed the rated power of the invert-
er. Furthermore, the performance of the connected battery must also be
considered.
Transitioning from feeding energy into the grid to backup power mode
1. The public grid is monitored by the inverter's internal grid and system protection unit and by the Fronius Smart Meter connected to it.
2. Failure of the public grid. 3. The inverter carries out the necessary measures according to the country
standard and then switches off.
Contactors K1, K4 and K5 drop out. This disconnects the emergency power
circuits and the inverter from the rest of the home network and from the
public grid, as the main contacts of contactor K1 open (all-pin). The NC auxil-
iary contacts of contactor K1 send feedback to the inverter that the contact-
or is open (a condition for starting backup power mode).
4. The NC main contacts of contactors K4 and K5 are closed, establishing a connection between the neutral conductor and the ground conductor. The
two other NC main contacts of contactors K4 and K5 give feedback to the
inverter that the ground connection has been established correctly (a condi-
tion for starting backup power mode).
5. The inverter activates relay K3, which interrupts the supply to contactors K1, K4 and K5. This prevents unintentional activation of contactors K1, K4 and
K5 and thus a grid connection when voltage is restored in the grid.
6. The NO contact of relay K3 gives additional feedback to the inverter on whether the locking was successfully performed by relay K3.
7. The inverter decides based on the contactors' feedback as well as the measurements on the inverter terminals and the Smart Meter that backup power
mode can be started.
8. After all the required activation tests have been carried out, the inverter starts backup power mode.
9. All loads in the backup power circuits are supplied with power. The remaining loads are not supplied with power and are safely isolated.
48
Transitioning from backup power mode to feeding energy into the grid
1. The inverter is operating in backup power mode. Contactor K1 to the public grid is open.
2. Public grid available again. 3. The Fronius Smart Meter monitors the grid parameters on the public grid
and passes this information to the inverter.
4. The stability of the returned public grid is determined by checking the measured values of the Fronius Smart Meter.
5. The inverter ends backup power mode and disconnects the outputs. 6. The inverter deactivates K3. Power is restored to contactors K1, K4 and K5. 7. All circuits are reconnected to the public grid and are supplied by the grid.
The inverter does not feed anything into the grid at this time.
8. The inverter can start feeding energy into the grid again after performing the grid checks required by the relevant standard.
49
Automatic switch to backup power all-pin separation, Italy
Functions
- Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
- Monitoring of the voltage and frequency grid parameters by the inverter. - Disconnecting from the public grid to enable operation in backup power
mode if the grid parameters are outside the country-specific standards.
- Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
- Establishing a correct ground connection for backup power mode. - Option of having a separate backup power circuit or several backup power
circuits that are supplied even during failure of the public grid. The total load
of the backup power circuits must not exceed the nominal output of the in-
verter. Furthermore, the performance of the connected battery must also be
considered.
Transitioning from feeding energy into the grid to backup power mode
1. The public grid is monitored by the inverter's internal grid and system protection unit and by an external grid and system protection unit.
2. Failure of the public grid 3. The inverter carries out the measures necessary according to the country
standard and then switches off.
4. The external grid and system protection unit opens contactors K1 and K2 for grid monitoring. This disconnects the backup power circuits and the inverter
from the rest of the home network and from the public grid, as the main con-
tacts of the contactors K1 and K2 all-pin open. To ensure that the public grid
has definitely been disconnected, the NC auxiliary contacts of contactor K1
give feedback to the external grid and system protection unit.
5. The NC main contacts of contactors K4 and K5 are closed, establishing a connection between the neutral conductor and the ground conductor. The
two other NC main contacts of contactors K4 and K5 give feedback to the
inverter that the ground connection has been established correctly.
6. The inverter activates relay K3, which activates the remote input of the external grid and system protection unit via an NC contact. This prevents a
connection to the public grid when voltage is restored in the grid.
7. The NO contact of relay K3 gives additional feedback to the inverter on whether the locking was successfully performed by relay K3.
8. The inverter decides based on the contactor's feedback as well as the measurement on the inverter terminals and the Smart Meter that the emergency
power mode can be activated.
9. The inverter starts backup power mode after a defined checking period. 10. All loads in the backup power circuits are supplied with power. The remaining
loads are not supplied with power and are safely isolated.
50
Transitioning from backup power mode to feeding energy into the grid
1. The inverter is operating in backup power mode. The contactors K1 and K2 to the public grid are open.
2. Public grid available again. 3. The Fronius Smart Meter monitors the grid parameters on the public grid
and passes this information to the inverter.
4. The stability of the returned public grid is determined by checking the measured values of the Fronius Smart Meter.
5. On the basis of adjustments that have been carried out, the inverter ends backup power mode and disconnects the outputs.
6. The inverter deactivates K3. Power is restored to contactors K1, K2, K4 and K5.
7. All circuits are reconnected to the public grid and are supplied by the grid. The inverter does not feed anything into the grid at this time.
8. The inverter can start feeding energy into the grid again after performing the grid checks required by the relevant standard.
51
Manual switch to backup power 1-pin separation, e.g. Australia / 2-pin separation, e.g. Germany
Functions
- Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
- Monitoring of the grid parameters by the inverter. - Possibility of manual separation from the public grid if it fails or is deemed
unstable.
- Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load
of the backup power circuits must not exceed the rated power of the invert-
er. Furthermore, the performance of the connected battery must also be
considered.
- If, in the event of a public grid failure, there is no manual switch to backup power mode within the first 10 minutes, this may cause the inverter and the
battery to shut down. In order to then start backup power mode, manual
switching must take place and a manual system start must be performed, if
necessary (see chapter Manual system start on page 29). - It is possible to manually reconnect the inverter and loads in the backup
power circuit to the public grid once it is deemed to be stable again. The in-
verter only starts feed-in mode once the required grid monitoring time has
passed.
Transitioning from feeding energy into the grid to backup power mode
1. The public grid is monitored by the inverter's internal grid and system protection unit and by the Fronius Smart Meter connected to it.
2. Failure of the public grid. 3. The inverter carries out the measures necessary according to the country
standard and then switches off. 4. The user switches the changeover switch Q1 from switch position 1 (grid op-
eration) via switch position 0 to switch position 2 (backup power mode). This disconnects the backup power circuits and the inverter from the rest of the home network and from the public grid. With all-pin separation, the ground conductor and neutral conductor are additionally connected via the main contacts of the switch. Switch position 2 (backup power mode) is reported back to the inverter via a main contact of changeover switch Q1. In addition, an interruption of the WSD line occurs when the changeover switch Q1 is switched via switch position 0. This causes the inverter to shut down immediately. This behaviour is ensured via 2 contacts. Communication between the inverter and Fronius Smart Meter is optionally interrupted via a contact. The suspended communication prevents automatic termination of backup power mode when the public grid returns, so that the inverter remains in backup power mode until it is manually switched back. 5. The inverter decides based on feedback for switch position 2 as well as the measurements on the inverter terminals and the Fronius Smart Meter that backup power mode can be started. 6. After all the required activation tests have been carried out, the inverter starts backup power mode. 7. All loads in the backup power circuits are supplied with power. The remaining loads are not supplied with power and are safely isolated.
52
Transitioning from backup power mode to feeding energy into the grid
1. The inverter is operating in backup power mode. Changeover switch Q1 is in switch position 2 (backup power mode).
2. Public grid available again. 3. The user switches the changeover switch Q1 from switch position 2 (backup
power mode) via switch position 0 to switch position 1 (grid operation). When
switching via switch position 0, the inverter is switched off immediately. This
is ensured via the contacts of the changeover switch Q1. To protect sensitive
loads, it is advisable to remain in the zero position for at least 1 second dur-
ing the changeover process from backup power mode to the public grid.
4. The inverter is again connected to the entire home network and to the public grid.
5. Communication between the inverter and Fronius Smart Meter is re-established.
6. The inverter can start feeding energy into the grid again after performing the grid checks required by the relevant standard.
53
54
Installation
55
56
General
Quick-lock system
A quick-lock system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quicklock spring (2).
The system is independent of torque.
NOTE!
Danger when using a drill driver. This may result in the destruction of the quick-lock system due to overtorque.
Use a screwdriver (TX20). Do not turn the screws more than 180°.
Warning notices on the device
Technical data, warning notices and safety symbols are affixed to the inverter. These warning notices and safety symbols must not be removed or painted over. They warn against incorrect operation which can lead to serious injury and damage.
57
A 4-digit number (coded production date) is printed on the rating plate at the very bottom, from which the production date can be calculated. If you subtract the value 11 from the first two digits, you get the production year. The last two digits stand for the calendar week in which the device was produced.
Example: Value on rating plate = 3205 32 - 11 = 21 Production year 2021 05 = Calendar week 05
Symbols on the rating plate: CE mark confirms compliance with applicable EU directives and regulations.
UKCA mark confirms compliance with applicable UK directives and regulations.
WEEE mark waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law. RCM mark tested in accordance with the requirements of Australia and New Zealand. ICASA mark tested in accordance with the requirements of the Independent Communications Authority of South Africa. CMIM mark tested in accordance with IMANOR requirements for import regulations and compliance with Moroccan standards.
Safety symbols: Risk of serious injury and property damage due to incorrect operation.
Do not use the functions described here until you have fully read and understood the following documents: - These Operating Instructions. - All the Operating Instructions for the photovoltaic system compon-
ents, especially the safety rules.
Dangerous electrical voltage.
58
Allow the capacitors of the inverter to discharge (2 minutes).
Warning notice text:
WARNING! An electric shock can be fatal. Before opening the device, it must be disconnected and de-energized at the input and output.
System component compatibility
All installed components in the photovoltaic system must be compatible and have the necessary configuration options. The installed components must not restrict or negatively influence the functioning of the photovoltaic system.
NOTE!
Risk due to components in the photovoltaic system that are not compatible and/or have limited compatibility. Incompatible components may limit and/or negatively affect the operation and/or functioning of the photovoltaic system.
Only install components recommended by the manufacturer in the photovoltaic system.
Before installation, check the compatibility of components not expressly recommended with the manufacturer.
59
Installation location and position
Choosing the location of the inverter
Please note the following criteria when choosing a location for the inverter:
200 mm ( 7.87 inch)
225 mm ( 8.86 inch)
200 mm ( 7.87 inch)
250 mm ( 9.84 inch)
270 mm
150 mm
( 10.63 inch) ( 5.91 inch)
440 mm ( 17.32 inch)
100 mm ( 3.94 inch)
-40°C - +60°C -40°F - +140°F
0 - 100%
Only install on a solid, non-flammable surface.
Max. ambient temperatures: -40 °C - +60 °C -40 °F - +140 °F
Relative humidity: 0-100%
If the inverter is installed in a switch cabinet or similar enclosed space, ensure sufficient heat dissipation with forced-air ventilation.
For detailed information on the dimensions of the inverter, see chapter Fronius Primo GEN24 3 - 6 kW on page 231.
When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 2 m between the inverter and the ventilation and building openings on all sides.
The following substrates are permissible for installation:
- Walls (corrugated metal walls [mounting rails], brick walls, concrete walls, or other non-flammable surfaces sufficiently capable of bearing loads)
- Mast or support (installed using mounting rails, behind the PV modules directly on the PV mounting system)
- Flat roofs (if installing on a foil roof, make sure that the foils adhere to the fire protection requirements and are thus not easily flammable. Ensure
compliance with the national provisions.)
- Covered car park roofs (no overhead installation)
The inverter is suitable for indoor installation.
The inverter is suitable for outdoor installation.
Due to its protection class IP 66, the inverter is insensitive to water jets from all directions and can also be used in humid environments.
In order to minimise the heating up of the inverter, do not expose it to direct insolation.
60
The inverter should be installed in a protected location, for example, below the PV modules or under an overhanging roof.
The inverter must not be installed or used at altitudes above
4001 m
4 000 m.
0 m
Do not install the inverter in: - Areas where it may be exposed to ammonia, corrosive
gases, acids or salts (e.g. fertiliser storage areas, vent openings for livestock stables, chemical plants, tanneries, etc.)
During certain operating phases the inverter may produce a slight noise. For this reason it should not be installed in an occupied living area.
Do not install the inverter in: - Areas where there is an increased risk of accidents from
farm animals (horses, cattle, sheep, pigs, etc.) - Stables or adjoining areas - Storage areas for hay, straw, chaff, animal feed, fertilizers,
etc.
The inverter is designed to be dustproof (IP 66). In areas of high dust accumulation, dust deposits may collect on the cooling surfaces, and thus impair the thermal performance. Regular cleaning is required in this case, see chapter Operation in dusty environments on page 173. We therefore recommend not installing the device in areas and environments with high dust accumulation.
Do not install the inverter in: - Greenhouses - Storage or processing areas for fruit, vegetables or viticul-
ture products - Areas used in the preparation of grain, green fodder or an-
imal feeds
Choosing the location of thirdparty batteries
IMPORTANT! Refer to the manufacturer's documents for the suitable location for third-party batteries.
61
Installation position of inverter
The inverter is suitable for vertical installation on a vertical wall or column.
The inverter is suitable for installation on a sloping surface (min. slope to underside 10°).
Do not install the inverter on a sloping surface with its connection sockets at the top.
Do not install the inverter at an angle on a vertical wall or column.
Do not install the inverter horizontally on a vertical wall or pillar.
Do not install the inverter on a vertical wall or pillar with its connection sockets facing upwards.
Do not install the inverter overhanging with the connection sockets at the top.
Do not install the inverter overhanging with the connection sockets at the bottom.
62
Do not install the inverter on the ceiling. 63
Install the mounting bracket and hang up the inverter
Selecting the fixing material
Use the corresponding fixing materials depending on the subsurface and observe the screw dimension recommendations for the mounting bracket. The installer is responsible for selecting the correct type of fixing.
Properties of the mounting bracket
The mounting bracket (illustration) can also be used as a guide.
The pre-drilled holes on the mounting bracket are intended for screws with a thread diameter of 6-8 mm (0.24-0.32 inches). The distance from the left to the right pre-drilled hole is 406 mm (16 inches).
Unevenness on the mounting surface (such as coarse-textured plaster) is largely compensated by the mounting bracket.
Do not deform the mounting bracket
NOTE!
When fitting the mounting bracket to the wall or column, ensure that the mounting bracket does not become deformed. A deformed mounting bracket may make it difficult to clip/swivel the inverter into position.
Fitting the mounting bracket to a wall
IMPORTANT! When installing the mounting bracket, make sure that it is installed with the arrow pointing upwards.
64
1
2
3
Installing the mounting bracket on a mast or beam
When installing the inverter on a mast or beam, Fronius recommends using the "Pole clamp" (order no. SZ 2584.000) mounting kit from Rittal GmbH. The "Pole clamp" kit covers the following dimensions: - Rectangular mast or beam with a
side length of 50-150 mm (1.97-5.91 inches) - Round mast or beam with a diameter of 40-190 mm (1.57-7.48 inches)
65
Attaching the mounting bracket to mounting rails
Attaching the inverter to the mounting bracket
1
66
IMPORTANT! The mounting bracket must be affixed at a minimum of four points.
There are integrated grips on the side of the inverter which facilitate lifting/ attaching.
Clip the inverter into the mounting bracket from above. The connections must point downwards. Push the lower part of the inverter into the snap-in tabs until the inverter audibly clicks into place on both sides. Check that the inverter is correctly positioned on both sides.
Prerequisites for connecting the inverter
Different cable types
Solid
Multi-stranded
Fine-stranded
Fine-stranded with ferrule and col-
lar
Fine-stranded with ferrule without
collar
Permissible
Round copper conductors can be connected to the terminals of the inverter as
cables for the
described below.
electrical con-
nGecrtidiocnonnections with push-in terminal*
Select a sufficiently large cable cross section based on the actual device output.
Number of pins
3
2.5 10 mm2 2.5 10 mm2 2.5 10 mm2 2.5 6 mm2 2.5 6 mm2
AWG 148
AWG 148
AWG 148 AWG 1410 AWG 1410
Grid connections, backup power with push-in terminal*
Select a sufficiently large cable cross section based on the actual device output!
Number of pins
3
1.5 10 mm2 1.5 10 mm2 1.5 10 mm2
AWG 168
AWG 168
AWG 168
1.5 6 mm2 AWG 1610
1.5 6 mm2 AWG 1610
PV/BAT connections with push-in terminal**
Select a sufficiently large cable cross section based on the actual device output.
Number of pins
2 x 5
4 10 mm2 AWG 128
4 10 mm2 AWG 128
4 10 mm2 AWG 128
4 6 mm2 AWG 1210
4 6 mm2 AWG 1210
Ground electrode terminal (6-pin)
Select a sufficiently large cable cross section based on the actual device output.
Number of pins
67
Ground electrode terminal (6-pin)
Select a sufficiently large cable cross section based on the actual device output.
2
2.5 16 mm2 2.5 16 mm2 2.5 16 mm2 2.5 16 mm2
AWG 146
AWG 146
AWG 146
AWG 146
4
2.5 10 mm2 2.5 10 mm2 2.5 10 mm2 2.5 10 mm2
AWG 148
AWG 148
AWG 148
AWG 148
2.5 16 mm2 AWG 146
2.5 10 mm2 AWG 148
*
According to product standard IEC 62109, the ground conductor must
correspond to the phase cross-section for phase cross-sections 16 mm²,
while for phase cross-sections >16 mm², it must be at least 16 mm².
For a conductor cross-section of 1.5 mm2, the maximum permissible
cable length is 100 m.
** The cable cross-section must be dimensioned in accordance with the in-
stallation situation and the specifications of the battery manufacturer.
Permissible cables for the data communication connection
Cables with the following design can be connected to the terminals of the invert-
er:
- Copper: round, solid - Copper: round, fine-stranded
IMPORTANT! Connect the individual conductors to an appropriate ferrule if several individual conductors are connected to one input of the push-in terminals.
WSD connections with push-in terminal
Distance max.
Stripping length
100 m 10 mm 0.14-1.5 mm2 0.14-1.5 mm2 109 yd 0.39 inch AWG 26 - 16 AWG 26 - 16
0.14-1 mm2 AWG 26 - 18
Cable recommenda-
tion
0.14-1.5 mm2 AWG 26 - 16
min. CAT 5 UTP (unshielded
twisted pair)
Modbus connections with push-in terminal
Distance max.
Stripping length
300 m 10 mm 0.14-1.5 mm2 0.14-1.5 mm2 328 yd 0.39 inch AWG 26 - 16 AWG 26 - 16
0.14-1 mm2 AWG 26 - 18
0.14-1.5 mm2 AWG 26 - 16
Cable recommenda-
tion
min. CAT 5 STP (shielded twisted
pair)
IO connections with push-in terminal
Distance max.
Stripping length
30 m 10 mm 0.14-1.5 mm2 0.14-1.5 mm2 32 yd 0.39 inch AWG 26 - 16 AWG 26 - 16
0.14-1 mm2 AWG 26 - 18
0.14-1.5 mm2 AWG 26 - 16
Cable recommenda-
tion
Single conductor pos-
sible
68
LAN connections
Fronius recommends at least CAT 5 STP (shielded twisted pair) cables and a maximum distance of 100 m (109 yd).
Cable diameter of the AC cable
For a standard M32 cable gland with a reducer: 7-15 mm
For a standard M32 cable gland without a reducer: 11-21 mm (with a cable diameter of less than 11 mm, the strain-relief force is reduced from 100 N to a maximum of 80 N)
With cable diameters greater than 21 mm, the M32 cable gland must be replaced by an M32 cable gland with a larger clamping area item number: 42,0407,0780 strain-relief device M32 x 1.5 KB 18-25.
Cable diameter of the DC cable
Cable diameter for the strain-relief device: max. 9 mm. Cable diameter for the connection to the push-in terminal: max. 7 mm
IMPORTANT! For double-insulated cables with a cable diameter over 7 mm, the outer layer of insulation must be removed to connect to the push-in terminal.
Maximum alternating current fuse protection
NOTE!
The national regulations of the grid operator or other factors may require a residual current circuit breaker in the AC connection lead. For this situation, a type A residual current circuit breaker is generally adequate. Nevertheless, false alarms can be triggered for the type A residualcurrent circuit breaker in individual cases and depending on local conditions. For this reason, in accordance with national legislation, Fronius recommends that a residual-current circuit breaker with a tripping current of at least 100 mA suitable for frequency converters be used.
69
IMPORTANT! The inverter can be fused with max. an automatic circuit breaker 63 A.
Inverter
Fronius Primo GEN24 3.0 kW
Fronius Primo GEN24 3.6 kW
Fronius Primo GEN24 4.0 kW
Fronius Primo GEN24 4.6 kW
Fronius Primo GEN24 5.0 kW
Fronius Primo GEN24 6.0 kW
Phase s 1 1 1
1 1
1
AC output
3 000 W 3 680 W 4 000 W
4 600 W 5 000 W
6 000 W
Maximum fuse rating
63 A 63 A 63 A
63 A 63 A
63 A
Recommended fuse rating
32 A 32 A 40 A
40 A 40 A
40 A
70
Connecting the inverter to the public grid (AC side)
Safety
WARNING!
Danger due to incorrect operation and incorrectly performed work. This can result in serious injury and damage to property.
Read the Installation and Operating Instructions before installing and commissioning the equipment.
Only qualified personnel are authorised to commission your inverter and only within the scope of the respective technical regulations.
WARNING!
Danger due to grid voltage and DC voltage from solar modules that are exposed to light. An electric shock can be fatal.
Prior to any connection work, disconnect the inverter on the AC side and the DC side.
Only an authorised electrical engineer is permitted to connect this equipment to the public grid.
WARNING!
Danger due to damaged and/or contaminated terminals. This can result in serious injury and damage to property.
Before making any connections, check the terminals for damage and contamination.
Remove contamination in the de-energized state. Have defective terminals repaired by an authorised specialist.
IMPORTANT! National standards and guidelines regarding load unbalance must be taken into account. The inverter does not have a communication link and does not automatically disconnect from the grid when the load unbalance is exceeded.
If the inverter is installed in Australia or New Zealand (required standard: AS/ NZS4777.2:2020), the inverter must not be used as part of a three-phase combination, as there is no communication link between the inverters.
Connecting the inverter to the public grid (AC side)
NOTE!
The neutral conductor must be connected in order to operate the inverter. It is not possible to operate the inverter in unearthed grids, such as IT grids (insulated grids without ground conductor).
Make sure that the grid's neutral conductor is earthed.
71
1
Turn off the automatic circuit breaker.
Set the DC disconnector to the "Off"
switch position.
2
Loosen the 5 screws of the connection
area cover by rotating them 180° to
the left using a screwdriver (TX20).
Remove the connection area cover
from the device.
3
Press the lock on the back of the ter-
minal and remove the AC terminal.
Guide the mains cable from below
through the cable gland on the right
side.
IMPORTANT! The ground conductor must be dimensioned longer and laid with a movement loop so that it strained last in the event of a failure of the cable gland. For more information on the cable gland, see chapter Cable diameter of the AC cable on page69.
72
4
Strip the insulation of the single con-
ductors by 12 mm.
Select the cable cross section in ac-
cordance with the instructions in Per-
missible cables for the electrical con-
nection from page 67.
Lift to open the terminal's operating
lever and insert the stripped single
conductor into the slot provided as far
as it will go.
Then close the operating lever until it
engages.
IMPORTANT! Only one line may be connected to each pole. The AC cables can be connected to the AC terminal without ferrules.
5
L1 Phase conductor
N
Neutral conductor
PE Ground conductor
6
Insert the AC terminal into the AC slot
until it engages. Fasten the union nut
of the cable gland with a torque of
6 7 Nm.
73
Connecting solar module strings to the inverter
General comments regarding PV modules
To enable suitable PV modules to be chosen and to use the inverter as efficiently as possible, it is important to bear the following points in mind: - If insolation is constant and the temperature is falling, the open-circuit
voltage of the PV modules will increase. The open-circuit voltage must not exceed the maximum permissible system voltage. If the open-circuit voltage exceeds the specified values, the inverter will be destroyed and all warranty claims will be forfeited. - The temperature coefficients on the data sheet of the PV modules must be observed. - Exact values for sizing the PV modules can be obtained using suitable calculation tools, such as the Fronius Solar.creator.
IMPORTANT! Before connecting up the PV modules, check that the voltage for the PV modules specified by the manufacturer corresponds to the actual measured voltage.
IMPORTANT! The PV modules connected to the inverter must comply with the IEC 61730 Class A standard.
IMPORTANT! Solar module strings must not be earthed.
Safety 74
WARNING!
Danger due to incorrect operation and incorrectly performed work. This can result in serious injury and damage to property.
Commissioning as well as maintenance and service work in the power module of the inverter must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.
Read the Installation and Operating Instructions before installing and commissioning the equipment.
WARNING!
Danger due to grid voltage and DC voltage from solar modules that are exposed to light. This can result in serious injury and damage to property.
Ensure that the AC and DC side of the inverter are de-energised before carrying out any connection, maintenance or service tasks.
Only an authorised electrical engineer is permitted to connect this equipment to the public grid.
WARNING!
Danger due to damaged and/or contaminated terminals. This can result in serious injury and damage to property.
Before making any connections, check the terminals for damage and contamination.
Remove contamination in the de-energized state. Have defective terminals repaired by an authorised specialist.
Module array general information
2 independent PV inputs (PV 1 and PV 2) are available. These can be connected to a different number of modules.
When using for the first time, set up the module array according to the respective configuration (also possible later in the "System configuration" menu under the "Components" menu item).
Module array configuration 3 6 kW
IMPORTANT! The installation must be carried out in accordance with the nationally applicable standards and directives. If the Arc Fault Circuit Interrupter integrated in the inverter is used for the requirement according to IEC 63027 for arc detection, the solar module strings must not be combined upstream of the inverter.
Module array settings: PV 1: ON PV 2: OFF
Current equal to or less than 22 A (Idcmax).
Combined solar module strings with total current greater than 22 A (ldcmax).
Module array settings: PV 1: ON PV 2: OFF PV 1 + PV 2 (connected in parallel): ON
IMPORTANT! The maximum current load of a single terminal is 22 A. PVconnection strings with a total current of more than 22 A must be split between both PV inputs upstream of the terminals (ISC max 55 A). The plug connection for splitting the total current must be sufficiently dimensioned, suitable and correctly installed. Splitting the current by bridging from PV 1 to PV 2 at the terminal is not permitted.
75
Module array settings: PV 1: ON PV 2: ON
PV 1 less than or equal to 36 A (ISC PV1) PV 2 less than or equal to 19 A (ISC PV2)
Connecting the
1
solar module
strings to the in-
verter
2
1
2
+
-
Push the DC cables through the DC bushings by hand.
IMPORTANT! Before stripping the insulation, push the cables through the DC bushings to prevent individual wires being bent or broken.
76
3
2 1
+
-
4
77
5
Select the cable cross section in ac-
cordance with the instructions in Per-
missible cables for the electrical con-
nection from page 67.
Strip the insulation of the single con-
ductors by 12 mm. Lift to open the ter-
minal's operating lever and insert the
stripped single conductor into the slot
provided, in each case as far as it will
go. Then close the operating lever until
it engages.
WARNING!
Danger due to individual conductors in the terminal that are loose and/or improperly connected. This can result in serious injury and damage to property.
Only connect one single conductor in the slot provided for each terminal.
Check that the single conductor is held securely in the terminal.
Ensure that all of the single conductor is within the terminal and that no individual wires are sticking out of the terminal.
6
+
-
PV1 PV1 PV2 PV2 BAT + ++++
BAT PV2 PV2 PV1 PV1 -----
78
7
8
1
+-
+ / -
9
Use a suitable measuring instrument to check the voltage and polarity of the DC cabling. Remove both DC terminals from the slots.
CAUTION!
Danger due to polarity reversal at the terminals. This may result in severe damage to the inverter.
Use a suitable measuring instrument to check the polarity of the DC cabling.
Use a suitable measuring instrument to check the voltage (max. 600 VDC)
Insert the DC terminals into the respective slot until they engage. Fasten the screws of the cable guide to the housing using a screwdriver (TX20) and a torque of 1.3-1.5 Nm.
NOTE!
Risk due to overtorque on the strain relief. This may result in damage to the strain-relief device.
Do not use a drill driver.
79
Connecting the battery to the inverter
Safety
WARNING!
Danger due to incorrect operation and incorrectly performed work. This can result in serious injury and damage to property.
Commissioning as well as maintenance and service work on the inverter and battery must only be carried out by service personnel trained by the respective inverter or battery manufacturer and only within the scope of the respective technical regulations.
Read the Installation and Operating Instructions provided by the respective manufacturer before installing and commissioning the equipment.
WARNING!
Danger due to grid voltage and DC voltage from solar modules that are exposed to light and from batteries. This can result in serious injury and damage to property.
Ensure that the AC and DC side of the inverter and the battery are de-energised before carrying out any connection, maintenance or service tasks.
Only an authorised electrical engineer is permitted to connect this equipment to the public grid.
WARNING!
Danger due to damaged and/or contaminated terminals. This can result in serious injury and damage to property.
Before making any connections, check the terminals for damage and contamination.
Remove contamination in the de-energized state. Have defective terminals repaired by an authorised specialist.
Connecting the battery on the DC side
CAUTION!
Danger due to operation of the battery above the permissible altitude as specified by the manufacturer. Operating the battery above the permissible altitude can result in restricted operation, failure of the operation, and unsafe states of the battery.
Adhere to the manufacturer's instructions regarding the permissible altitude. Operate the battery only at the altitude specified by the manufacturer.
IMPORTANT! Prior to installing a battery, ensure that the battery is switched off. The max. DC cable length for the installation of external batteries must be taken into account according to the manufacturer's specifications, see chapter Suitable batteries on page 26.
80
1 BAT+ BATBAT PE
2
1
2
3*
Manually push the battery cables through the DC bushings.
* The battery ground conductor must be connected externally (e.g. switch cabinet). When connecting an LG FLEX battery, the battery ground conductor can be connected in the inverter (see chapter Connecting the LG FLEX ground conductor on page 84. Observe the minimum cross section of the ground conductor to the battery.
IMPORTANT! Before stripping the insulation, push the cables through the DC bushings to prevent individual wires being bent or broken.
2 1
BAT+ BAT-
81
3
4 2 2 1
PUSH
Select the cable cross section in accordance with the instructions in Permissible cables for the electrical connection from page 67. Strip the insulation of the individual conductors by 12 mm. Lift to open the terminal's operating lever and insert the stripped single conductor into the slot provided, in each case as far as it will go. Then close the operating lever until it engages.
WARNING!
Danger due to individual conductors in the terminal that are loose and/or improperly connected. This can result in serious injury and damage to property.
Only connect one single conductor in the slot provided for each terminal.
Check that the single conductor is held securely in the terminal.
Ensure that all of the single conductor is within the terminal and that no individual wire strands are sticking out of the terminal.
BAT+ BAT-
82
5
CAUTION!
Risk due to overvoltage when using other slots on the terminal. This may result in damage to the battery and/or the PV modules due to discharge.
Only use the slots marked BAT for connecting the battery.
BAT+ BAT-
PV1 PV1 PV2 PV2 BAT + ++++
6
BAT PV2 PV2 PV1 PV1 -----
+ / -
1
BAT+ BAT-
7
"click"
2
1
CAUTION!
Danger due to polarity reversal at the terminals. Serious damage to the PV system may result.
Use a suitable measuring instrument to check the polarity of the DC cabling when the battery is switched on.
The maximum voltage for the battery input must not be exceeded (see Technical data on page 182).
Insert the DC terminals into the respective slot until they engage.
BAT+ BAT-
83
8
Fasten the screws of the cable guide to
the housing using a screwdriver (TX20)
and a torque of 1.3 1.5 Nm.
BAT+ BAT-
TX 20
1
1,3 - 1,5 Nm
NOTE!
Risk due to overtorque at the strainrelief device. This may result in damage to the strain-relief device.
Do not use a drill driver.
IMPORTANT! Information for the battery-side connection can be found in the Installation Instructions from the relevant manufacturer.
Connecting the
1
LG FLEX ground
conductor
Route the battery ground conductor into the integrated cable duct of the connection area divider and into the AC connection area.
2
Fasten the battery ground conductor
to the second input of the ground
electrode terminal from the top using
a screwdriver (TX20) and a torque of
1.8 2 Nm.
IMPORTANT! Information for the battery-side connection can be found in the Installation Instructions from the relevant manufacturer.
84
Connecting backup power - PV Point (OP)
Safety
WARNING!
Danger due to work that has been carried out incorrectly. This can result in serious injury and damage to property.
Installing and connecting an option must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.
Follow the safety rules.
WARNING!
Danger due to damaged and/or contaminated terminals. This can result in serious injury and damage to property.
Before making any connections, check the terminals for damage and contamination.
Remove contamination in the de-energized state. Have defective terminals repaired by an authorised specialist.
NOTE!
During the switch from grid-connected operation to backup power mode, momentary interruptions will occur. The PV Point output requires PV power from the solar modules or a battery to power the connected loads. Connected loads will not be supplied with power during the switchover.
Do not connect any loads that require an uninterruptible supply ( e.g. IT networks, life-sustaining medical devices).
IMPORTANT! The valid national laws, standards and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied. It is highly recommended that the specific installation be agreed with the grid operator and explicitly approved by this operator. This obligation applies to system constructors in particular (e.g. installers).
Installation
NOTE!
All loads that have to be supplied via the OP terminal must be protected by means of a residual current circuit breaker. In order to ensure the residual current circuit breaker operates properly, a connection must be established between the neutral conductor N´ (OP) and earth.
For the Circuit Diagram recommended by Fronius, see Circuit Diagram - PV Point (OP) on page 213.
85
1
Switch off the automatic circuit break-
er and DC disconnector. Turn the DC
disconnector to the "Off" switch posi-
tion.
2
Loosen the 5 screws of the connection
area cover by rotating them 180° to
the left using a screwdriver (TX20).
Remove the connection area cover
from the device.
CAUTION!
Danger from faulty or incorrect holes. This may lead to injuries to the eyes and hands as a result of flying debris and sharp edges, as well as damage to the inverter.
When drilling, wear suitable protective goggles. Only use a step drill when drilling. Ensure that nothing is damaged inside the device (e.g. connection block). Adapt the diameter of the hole to match the corresponding connection. Deburr the holes using a suitable tool. Remove the drilling residues from the inverter.
86
3
Drill out the optional cable guide with
a step drill.
4
Insert the cable gland into the hole
and secure to the torque specified by
the manufacturer.
5
Guide the mains cable through the
cable gland from below.
Pull off the OP terminal.
87
6
Strip the insulation of the single con-
ductors by 12 mm.
The cable cross section must be
between 1.5 mm2 and 10 mm2. Lift to
open the terminal's operating lever and
insert the stripped single conductor in-
to the slot provided, all the way up to
the stop. Then close the operating
lever until it engages.
WARNING!
Danger due to individual conductors in the terminal that are loose and/or improperly connected. This can result in serious injury and damage to property.
Only connect one single conductor in the slot provided for each terminal.
Check that the single conductor is held securely in the terminal.
Ensure that all of the single conductor is within the terminal and that no individual wires are sticking out of the terminal.
7
L1´ Phase conductor
N´ Neutral conductor
N´ PEN conductor
IMPORTANT! The PEN conductor must be produced with ends that are permanently marked blue, according to the national provisions, and have a cross section of 10 mm².
8
Fasten the ground conductor and PEN
conductor to the ground electrode ter-
minal using a screwdriver (TX20) and a
torque of 1.8 2 Nm.
88
9
Insert the OP terminal into the OP slot
until it engages. Tighten the union nut
of the cable gland to the torque spe-
cified by the manufacturer.
Testing backup power mode
After the initial installation and configuration of the backup power operation, it is recommended to test the backup power operation. For test mode, a battery charge of min. 30 % is recommended.
A description on how to run test mode can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).
89
Connecting backup power - Full Backup
Safety
WARNING!
Danger from incorrect installation, commissioning, operation or incorrect use. This can result in severe personal injury/damage to property.
Only trained and qualified personnel are authorised to install and commission the system, and only within the scope of the technical regulations.
The Installation and Operating Instructions must be read carefully prior to use.
If anything is unclear, contact your vendor immediately.
IMPORTANT! The valid national laws, standards and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied. It is highly recommended to coordinate the concrete examples implemented and in particular the specific installation with the grid operator to obtain their explicit approval. This obligation applies to system constructors in particular (e.g. installers). The examples suggested here show a backup power supply with or without an external protection relay (external grid and system protection unit). Whether an external protection relay must be used or not is the decision of the respective grid operator.
IMPORTANT! An uninterruptible power supply (UPS) may only be used to supply individual loads (e.g. computers). Feeding into the power supply of the house network is not permitted. The Installation and Operating Instructions must be read carefully prior to use. If anything is unclear, contact your vendor immediately.
The examples given in this document (in particular cabling variants and Circuit Diagrams) are suggestions only. These examples have been carefully developed and tested. They can therefore be used as a basis for real-life installation. Anyone following or using these examples does so at their own risk.
Automatic switch to backup power 1-pin separation, e.g. Austria or Australia
Circuit diagrams on page. on page .
Cabling of backup power circuit and non-backup power circuits:If not all the loads in the home need to be supplied in a backup power situation, the circuits need to be divided into backup power circuits and non-backup power circuits. The total load of the backup power circuits must not exceed the rated power of the inverter.The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (residual current circuit breaker, automatic circuit breaker, etc.)In backup power mode, only the backup power circuits are 1-pin disconnected from the grid by contactor K1. The rest of the home network is not supplied with power in this case.
90
The following points regarding cabling must be considered: - The main contacts of contactor K1 must be installed between the Fronius
Smart Meter and the inverter and the residual current circuit breaker of the
backup power circuits.
- The supply voltage for contactor K1 is provided by the public grid and must be connected to phase 1 (L1) after the Fronius Smart Meter and fused ac-
cordingly.
- An NC contact for relay K3 interrupts the supply voltage to contactor K1. This prevents the backup power network of the inverter from being switched
to the public grid.
- The NO contact of relay K3 gives feedback to the inverter on whether the locking was successfully performed by relay K3.
- Additional inverters or other AC sources can be installed in the backup power circuit after the main contacts of K1. The sources are not synchron-
ised to the network of the inverter because this backup power network has a
frequency of 53 Hz.
Automatic switch to backup power 2-pin separation, e.g. Germany, France, UK, Spain
Circuit diagrams on page. on page. on page. on page .
Cabling of backup power circuit and non-backup power circuits:If not all the loads in the home need to be supplied in a backup power situation, the circuits need to be divided into backup power circuits and non-backup power circuits. The total load of the backup power circuits must not exceed the rated power of the inverter. The emergency power circuits and non-emergency power circuits must be fused separately according to the required safety measures (residual current circuit breaker, automatic circuit breaker, etc.).In backup power mode, only the backup power circuits are all-pin disconnected from the grid by contactor K1; a ground connection is only established for these circuits. The rest of the home network is not supplied with power in this case.
The following points regarding cabling must be considered: - The main contacts of contactor K1 must be installed between the Fronius
Smart Meter and the residual-current circuit breaker of the inverter or the residual-current circuit breaker of the emergency power circuits. - The supply voltage for contactor K1 is provided by the public grid and must be connected to phase 1 (L1) after the Fronius Smart Meter and fused accordingly. - To ensure residual-current circuit breakers function in backup power mode, the connection between the neutral conductor and the ground conductor must be established as close as possible to the inverter, but in any case upstream of the first residual-current circuit breaker. An NC contact is used for this purpose for each of the main contacts of contactors K4 and K5. This ensures that the ground connection is established as soon as the public grid connection is no longer available. - As with contactor K1, the supply voltage for contactors K4 and K5 is provided via phase 1 (L1) of the public grid. - An NC contact for relay K3 interrupts the supply voltage to contactors K1, K4 and K5. This prevents the ground connection from being immediately disconnected again when power returns to the public grid and the backup power network of the inverter from being switched to the public grid. - The NO contact of relay K3 gives feedback to the inverter on whether the locking was successfully performed by relay K3. - Additional inverters or other AC sources can be installed in the backup power circuit after the main contacts of K1. The sources are not synchronised to the network of the inverter because this backup power network has a frequency of 53 Hz. - A Fronius Smart Meter with current transformer is required for the UK (e.g. Fronius Smart Meter 50kA-3 or Fronius Smart Meter TS 5kA-3).
91
Automatic switch to backup power 2-pin double separation with ext. grid and system protection - e.g. Italy
Circuit diagram on page .
Cabling for backup power circuit and non-backup power circuits:IMPORTANT! Fronius Smart Meter US-240 must be used for these circuit variants.The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (residual current circuit breaker, automatic circuit breaker, etc.)In backup power mode, only the backup power circuits are disconnected from the grid by contactors K1 and K2; an earth connection is only established for these circuits. The rest of the home network is not supplied with power in this case.
The following points regarding cabling must be considered: - The main contacts of contactors K1 and K2 must be installed between the
Fronius Smart Meter and the residual-current circuit breaker of the inverter and the residual-current circuit breaker of the backup power circuits. - The supply voltage for contactors K1 and K2 is provided by the public grid and must be connected to phase 1 (L1) downstream of the Fronius Smart Meter and fused accordingly. - Actuation of contactors K1 and K2 is carried out by the external grid and system protection unit. - The external grid and system protection unit must be installed downstream of the Fronius Smart Meter. Precise installation and wiring instructions for the external grid and system protection unit can be found in its separate Operating Instructions. - The remote trip input of the external grid and system protection unit must be set to NC according to the manufacturer's Operating Instructions. - To ensure residual-current circuit breakers function in backup power mode, the connection between the neutral conductor and the ground conductor must be established as close as possible to the inverter, but in any case upstream of the first residual-current circuit breaker. An NC contact is used for this purpose for the main contacts of contactors K4 and K5. This ensures that the ground connection is established as soon as the public grid connection is no longer available. - The supply voltage for contactors K1, K2, K4 and K5 is provided via phase 1 (L1) of the public grid and is switched via the external grid and system protection unit. - An NC contact for relay K3, which activates the remote input of the external grid and system protection unit, interrupts the supply voltage to contactors K1, K2, K4 and K5. This prevents the ground connection from being immediately disconnected again when power returns to the public grid and the backup power network of the inverter from being switched to the public grid. - The NO contact of relay K3 gives additional feedback to the inverter on whether the locking was successfully performed by relay K3. - Additional inverters or other AC sources can be installed in the backup power circuit downstream of the main contacts of K1 and K2. The sources are not synchronised to the network of the inverter because this backup power network has a frequency of 53 Hz.
Manual switch to backup power 1pin separation, e.g. Australia / 2pin separation, e.g. Germany
Circuit diagrams on page. on page .
IMPORTANT!The Circuit Diagrams to be used are to be applied depending on the country standard and implementation regulations of the grid operator.
Cabling of backup power circuit and non-backup power circuitsIf not all the loads in the home need to be supplied in a backup power situation, the circuits need to be divided into backup power circuits and non-backup power circuits. The total load of the backup power circuit must not exceed the rated power of
92
the inverter.The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (residual current circuit breaker, automatic circuit breaker, etc.).In backup power mode, only the backup power circuits and inverter are disconnected from the grid by the changeover switch Q1. In the case of two-pin separation, an additional earth connection is established. In this case, the loads in the non-backup circuit are not supplied by the inverter.
The following points regarding installation must be considered - The changeover switch Q1 must be dimensioned for the fuses installed up-
stream, the max. occurring amperage and the max. occurring short circuit current. An auxiliary switching element with two NO contacts is required for switch position 1 (grid operation) to match the installed Q1 changeover switch.The Q1 switch used must fulfil a short-circuit breaking capacity of at least 10kA according to the standard IEC 60947-1. If the short circuit current at the installation point reaches a value above 10kA, a switch with an appropriate short-circuit breaking capacity must be used. - The circuit is to be used exclusively in household applications and installations (small trade and agriculture) or up to upstream fuses with a nominal current of 63A. - Min. impulse withstand voltage of the changeover switch of 4kV according to IEC 60947-1. - Whether 1-pin or 2-pin separation is to be used must be clarified with the grid operator. - The protective measure must be tested regularly; if this is not regulated by law, it must be performed annually. - Data transfer between the Fronius Smart Meter and the inverter may be interrupted in backup power mode (switch position 2). This is optionally ensured via a contact of the changeover switch. Interrupting the Smart Meter connection is optional and prevents the backup power function from ending when the public grid returns. If this does not take place, the inverter interrupts the backup power supply when the public grid returns. Failure to manually switch to grid-parallel operation within the first 10 minutes of the public grid returning may cause the inverter and battery to shut down. In this case, a manual system start must be carried out. (See chapter on page ). This behaviour must be taken into account especially during a test of the manual switchover, because the inverter does not start backup power mode due to the existing Smart Meter data when the grid connection is established. - The data communication connection with the Fronius Smart Meter must be established separately from the battery to its dedicated Modbus input so that battery data communication is maintained. (See chapter on page ). - Feedback to the digital inputs (IOs) of the inverter via the changeover switch Q1 (switch position 2), is a start condition for the inverter's backup power mode. - The AC output of the inverter is de-energised when switching over via switch position 0. This is ensured by interrupting the WSD line with 2 contacts of the changeover switch Q1 in position 0. - The continuous connection between the equipotential bonding rail and the neutral conductor from the inverter must not be interrupted in the case of 1pin separation. - In the case of 2-pin separation, the PE-N conductor connection is established via the main contacts of the changeover switch Q1 in a double version. - Additional inverters or other AC sources can be installed in the backup power circuit after the changeover switch Q1. The sources will not synchronise to the inverter's backup power network in case of backup power because this is operated at 53 Hz.
93
Testing backup power mode
After the initial installation and configuration of the backup power operation, it is recommended to test the backup power operation. For test mode, a battery charge of min. 30 % is recommended.
A description on how to run test mode can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).
94
Connecting the data communication cable
Modbus participants
The inputs M0 and M1 can be selected for this purpose. A maximum of 4 Modbus participants can be connected to the Modbus terminal on inputs M0 and M1.
IMPORTANT! Only one primary meter, one battery and one Ohmpilot can be connected per inverter. Due to the high data transfer of the battery, the battery occupies 2 participants. If the "Inverter control via Modbus" function is activated in the "Communication" "Modbus" menu, no Modbus participants are possible. It is not possible to send and receive data at the same time.
Example 1:
Input
Battery
Fronius Ohmpilot
Quantity Primary
meter
0
Quantity Secondary
meter
4
0
2
0
1
1
3
Modbus 1 (M1) Modbus 0 (M0)
Example 2:
Input
Battery
Fronius Ohmpilot
Quantity Primary
meter
Quantity Secondary
meter
1
3
0
4
0
2
0
1
Modbus 1 (M1) Modbus 0 (M0)
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Routing data communication cables
IMPORTANT! If data communication cables are wired into the inverter, observe the following points: - Depending on the number and cross section of the wired data communica-
tion cables, remove the corresponding blanking plugs from the sealing insert and insert the data communication cables. - Make sure that you insert the corresponding blanking plugs into any free openings on the sealing insert.
IMPORTANT! Should the blanking plugs be missing or improperly fitted, then safety class IP66 cannot be guaranteed.
1
Undo the cable gland union nut and
push out the sealing ring and the
blanking plug from the inside of the
device.
2
Open up the sealing ring at the loca-
tion where the blanking plug is to be
removed.
* Liberate the blanking plug by moving it sideways.
96
3
Guide the data cables first through the
cable gland union nut and then
through the housing opening.
4
Insert the sealing ring between the
union nut and the housing opening.
Press the data cables into the seal's
cable guide. Then press in the seal un-
til it reaches the underside of the
cable gland.
5
Tighten the union nut for the cable
gland to a torque of min. 2.5 to max.
4 Nm.
97
Connecting the
1
battery commu-
nication cable
Strip 10 mm from the single conductors and mount the ferrules if necessary.
IMPORTANT! Connect the individual conductors to an appropriate ferrule if several individual conductors are connected to one input of the push-in terminals.
2
Insert the cable into the respective
slot and check the cable is securely re-
tained.
IMPORTANT! Use only twisted pairs for connecting "Data +/-" and "Enable +/-", see Permissible cables for the data communication connection on page 68.
Twist the cable shield and insert into the "SHIELD" slot.
IMPORTANT! Improperly fitted shielding can cause data communication problems.
For the wiring proposal recommended by Fronius, see page 209.
Terminating resistors
It may be possible for the system to function without terminating resistors. However, owing to interference, the use of terminating resistors according to the following overview is recommended for trouble-free functioning.
For permissible cable and max. distances for the data communication range see chapter Permissible cables for the data communication connection on page 68.
IMPORTANT! Terminating resistors that are not positioned as illustrated can result in interference in the data communication.
98
OPTION 1
Manufacturer manual
Modbus 1 0
1
Modbus 0 0
1
Manufacturer manual
0
0
1
6 7
Modbus 0 / 1 (min. CAT 5)
-+
Modbus 0 / 1 (min. CAT 5)
OPTION 2
M0 / M1
0
1
Manufacturer manual
Manufacturer manual
0
0
1
6 7
-+
Modbus 0 / 1
Modbus 0 / 1
(min. CAT 5)
(min. CAT 5)
OPTION 3
M0 / M1
0
1
Manufacturer manual
Manufacturer manual
-
Modbus 0 / 1 (min. CAT 5)
+
0 0 1 67
Modbus 0 / 1
(min. CAT 5)
99
Installing the WSD (wired shutdown)
IMPORTANT! The push-in WSD terminal in the inverter's connection area is delivered with a bypass ex works as standard. The bypass must be removed when installing a trigger device or a WSD chain.
The WSD switch of the first inverter with connected trigger device in the WSD chain must be in position 1 (primary device). The WSD switch of all other inverters should be in the 0 (secondary device) position.
Max. distance between 2 devices: 100 m Max. number of devices: 28
IN (+) IN (-)
OUT (+) OUT (-)
*
IN (+) IN (-)
OUT (+) OUT (-)
IN (+) IN (-)
OUT (+) OUT (-)
CAT 5/6/7
* Floating contact of the trigger device (e.g. central grid and system protection). If several floating contacts are used in a WSD chain, they must be connected in series.
100
Closing and commissioning the inverter
Closing the inverter's connection area/housing cover, and commissioning
NOTE!
The housing cover is fitted with a lock for safety reasons, which allows the housing cover on the inverter to be pivoted only when the DC disconnector is switched off.
Only clip and pivot the housing cover onto the inverter when the DC disconnector is switched off.
Do not use excessive force to clip in and pivot the housing cover.
1
Place the cover on the connection
area. Tighten the five screws by rotat-
ing them 180° to the right in the indic-
ated order using a screwdriver (TX20).
2
Clip the housing cover in at the top of
the inverter.
Press on the lower part of the housing
cover and tighten the two screws 180°
to the right using a Torx screwdriver
(TX20).
Turn the DC disconnector to the "On"
switch position. Switch on the auto-
matic circuit breaker. For systems with
a battery, observe the switch-on se-
quence as per chapter Suitable batter-
ies on page 26.
IMPORTANT! Open WLAN Access Point with the optical sensor, see chapter Button functions and LED status indicator on page 35
Starting the inverter for the first time
When starting the inverter for the first time, various setup settings must be configured.
If the setup process is cancelled before the process is complete, any data that has been input up to this point is lost and the start screen with the installation wizard is shown again. If the process is interrupted, such as in the event of a power outage, the data is saved. Commissioning may be continued from the point at which the process was interrupted once the power supply has been restored. If the setup was interrupted, the inverter feeds energy into the grid at maximum 500 W and the operating status LED flashes yellow.
101
The country setup can only be set when starting the inverter for the first time. If the country setup needs to be changed at a later date, please contact your installer / Technical Support team.
Installation with the app
The "Fronius Solar.start" app is required for this installation method. Depending on the end device with which the installation will be carried out, download the app for the respective platform.
Fronius Solar.start
1
2
open access point
1 Download and install the Fronius Solar.start app.
2 Open the access point by touching the sensor ü Communication LED flashes blue.
3 Open the Solar.start app and follow the installation wizard. Scan the QR code on the rating plate with a smartphone or tablet to connect to the inverter.
4 Add system components in Solar.web and start up the PV system.
The network wizard and the product setup can be carried out independently of each other. A network connection is required for the Solar.web installation wizard.
Installation using the web browser
WLAN:
1
open access point
FRONIUS_Serialnumber Rating plate
Secured
Access point
Password:
XXXXXXXX
password:
XXXXXXXX
2
192.168.250.181
1 Open the access point by touching the sensor
ü Communication LED flashes blue.
2 Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).
3 Enter the password from the rating plate and confirm. IMPORTANT! To enter the password on a Windows 10 operating system, the link "Connect using a security key instead" must first be activated to establish a connection with the password.
102
4 In the browser address bar, enter and confirm the IP address 192.168.250.181. The installation wizard is opened.
5 Follow the installation wizard in the individual sections and complete the installation.
6 Add system components in Solar.web and start up the PV system.
The network wizard and the product setup can be carried out independently of each other. A network connection is required for the Solar.web installation wizard.
Ethernet:
1
2
open access point
192.168.250.180
1 Establish a connection to the inverter (LAN1) with a network cable (CAT5 STP or higher).
2 Open the access point by touching the sensor once ü Communication LED flashes blue.
3 In the browser address bar, enter and confirm IP address 169.254.0.180. The installation wizard is opened.
4 Follow the installation wizard in the individual sections and complete the installation.
5 Add system components in Solar.web and start up the PV system.
The network wizard and the product setup can be carried out independently of each other. A network connection is required for the Solar.web installation wizard.
103
Switching off current supply and restarting the inverter
De-energising
1
the inverter and
switching it on
again
1. Turn off the automatic circuit breaker.
2. Turn the DC disconnector to the "Off" switch position.
To start up the inverter again, follow the steps listed above in reverse order.
104
Settings - user interface of the inverter
105
106
User settings
User login
1 Open the user interface of the inverter in your browser. 2 In the "Login" menu, log in using your user name and password, or go to the
"User" menu and click on the "User login" button and then log in with your user name and password.
IMPORTANT! Depending on the user's authorization, settings can be executed in the individual menus.
Selecting the language
1 In the "User" menu, click on the "Language" button and select the desired language.
107
Device configuration
Components
Select "Add component+" to add all available components to the system.
PV generator Activate the MPP tracker and enter the connected PV power in the associated field. For combined solar module strings, "PV 1 + PV 2 connected in parallel" must be activated.
Battery If the SoC mode is set to "Automatic", the values "Minimum SoC" and "Maximum SoC" are preset according to the technical specifications of the battery manufacturer.
If the SoC mode is set to "Manual", the values "Minimum SoC" and "Maximum SoC" may be changed after consultation with the battery manufacturer within the scope of their technical specifications. In the event of a power outage requiring backup power, the set values are not taken into account.
Using the "Allow battery charging from additional producers in home network" setting, charging of the battery from other external producers is enabled/ disabled.
Using the "Allow battery charging from public grid" setting, charging of the battery from the public grid is enabled/disabled. The normative or feed-in tariff rules must be taken into account with this setting. The setting does not affect the charging of the battery by other producers within the home. It merely relates to the process of drawing charging energy from the public grid. Regardless of this setting, any charging from the public grid that is required for service reasons (e.g. necessary re-charging to protect against deep discharge) is still performed.
IMPORTANT! Fronius accepts no liability for damage to third-party batteries.
Primary meter To ensure smooth operation in conjunction with other energy producers and in Full Backup backup power mode, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and other producers must be connected to the public grid via the Fronius Smart Meter. This setting also affects the behaviour of the inverter at night. If the function is deactivated, the inverter switches to Standby mode as soon as there is no more PV power available, provided that no energy management command is sent to the battery (e.g. minimum state of charge reached). The message "Power low" is displayed. The inverter restarts as soon as an energy management command is sent or sufficient PV power is available. If the function is activated, the inverter remains permanently connected to the grid so that energy can be drawn from other producers at any time. After connecting the meter, the position must be configured. A different Modbus address needs to be set for each Smart Meter. The Watt value on the generator meter is the sum of all generator meters. The Watt value on the consumption meter is the value of all secondary meters.
Ohmpilot All Ohmpilots available in the system are displayed. Select the desired Ohmpilot and add it to the system via "Add".
108
Functions and I/Os
Backup power "Off", "PV Point" or "Full Backup" can be selected for backup power mode. "Full Backup" backup power mode can only be activated once the required I/O assignments have been configured for backup power. In addition, a meter must be mounted and configured at the feed-in point for "Full Backup" backup power mode.
IMPORTANT! When configuring "PV Point" backup power mode, the information in chapter Safety on page 85 must be observed. When configuring "Full Backup" backup power mode, the information in chapter Safety on page 90 must be observed.
Backup power nominal voltage When backup power mode is activated, the nominal voltage of the public grid must be selected.
State of charge warning limit A warning is output when the residual capacity of the battery specified here is reached in backup power mode.
Reserve capacity The set value results in a residual capacity (depending on the capacity of the battery) that is reserved for backup power. The battery is not discharged below the residual capacity in grid-connected operation. In backup power mode, the manually set value "Minimum SoC" is not taken into account. If there is a power outage, the battery is always discharged down to the automatically preset minimum SoC in accordance with the technical specifications of the battery manufacturer.
Load management Up to 4 pins can be selected for load management here. Additional load management settings are available in the "Load management" menu item. Default: Pin 1
Australia - Demand Response Mode (DRM) The pins for control via DRM can be set here:
Mode Description
Information
I/O DRM pin pin
DRM0 Inverter disconnects DRM0 occurs if there is REF GEN IO4
itself from the grid an interruption or short
COM
IO5
circuit on the REF GEN
LOAD
or COM LOAD leads, or if
the combinations DRM1
- DRM8 are invalid.
The mains relays open.
DRM1 Import Pnom 0%
currently not supported DRM 1/5 IN6
without disconnec-
tion from the grid
DRM2 Import Pnom 50% currently not supported DRM 2/6 IN7
DRM3 Import Pnom 75% currently not supported DRM 3/7 IN8 & +Qrel* 0%
DRM4 Import Pnom 100% currently not supported DRM 4/8 IN9
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Mode Description
Information
I/O DRM pin pin
DRM5 Export Pnom 0%
currently not supported DRM 1/5 IN6
without disconnec-
tion from the grid
DRM6 Export Pnom 50% currently not supported DRM 2/6 IN7
DRM7 Export Pnom 75% & currently not supported DRM 3/7 IN8 -Qrel* 0%
DRM8 Export Pnom 100% currently not supported DRM 4/8 IN9
The percentages always refer to the nominal device output.
IMPORTANT! If the Demand Response Mode (DRM) function is enabled and no DRM control is connected, the inverter switches to Standby mode.
Demand Response Modes (DRM)
Here you can enter a value for the apparent power input and the apparent power output for the Australia country setup.
Inverter
"Enforce Standby" When the function is activated, the feed-in mode of the inverter is interrupted. This enables a powerless shutdown of the inverter and protects its components. When the inverter is restarted, the standby function is automatically deactivated.
"PV 1" and "PV 2"
Parameter "Mode"
Value range Off Auto
Fix
"UDC fix"
80 530 V
"Dynamic Peak Off
Manager"
On
Description
The MPP tracker is deactivated.
The inverter uses the voltage at which the max. possible power of the MPP tracker is possible.
The MPP tracker uses the voltage defined in the "UDC fix".
The inverter uses the fixed preset voltage used at the MPP tracker.
The function is deactivated.
The entire solar module string is checked for optimisation potential and determines the best possible voltage for feed-in mode.
"Ripple Control" Ripple control signals are signals sent out by the energy company to switch controllable loads on and off. Depending on the installation situation, ripple control
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signals may be attenuated or amplified by the inverter. The settings below can be used to counteract this if necessary.
Parameter
"Reduction of Influence"
"Frequency of Ripple Control Signal"
"Grid Inductance"
Value range Off On 100 3000 Hz
Description The function is deactivated. The function is activated. The frequency specified by the energy company must be entered here.
0.00001 0.00 The value measured at the feed-in point
5 H
must be entered here.
"Measures against RCD/RCMU false triggers" (when using a 30 mA residual current circuit breaker)
NOTE!
The national regulations of the grid operator or other factors may require a residual current circuit breaker in the AC connection lead. For this situation, a type A residual-current circuit breaker is generally adequate. Nevertheless, false alarms can be triggered for the type A residual-current circuit breaker in individual cases and depending on local conditions. For this reason, in accordance with national legislation, Fronius recommends that a residualcurrent circuit breaker with a tripping current of at least 100 mA suitable for frequency converters be used.
Parameter
"Switch-Off before 30mA RCD Trip"
Value range 0 1
"Leakage current factor to reduce RCMU/RCD false trips" (only for Symo GEN24)
0 0.25 (default: 0.16)
Description
No measures to prevent false tripping.
The inverter switches off at 15 mA before the residual-current circuit breaker trips.
Reducing the setting value reduces the leakage current and raises the intermediate circuit voltage, which slightly reduces the efficiency. Setting value 0.16 enables optimum efficiency.
"Iso Warning"
Parameter "Iso Warning"
Value range Off On
Description
The isolation warning is deactivated.
The isolation warning is activated. A warning is issued in the event of an isolation fault.
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Parameter
"Iso Alternative Mode"
Value range Accurate
Fast
"Isolation Warning Threshold"
100,000 10,000,000
Description
Isolation monitoring is performed with the highest accuracy and the measured insulation resistance is displayed on the user interface of the inverter.
Isolation monitoring is performed with lower accuracy, which shortens the duration of the isolation measurement, and the isolation value is not displayed on the user interface of the inverter.
If this threshold is undershot, status code 1083 is displayed on the user interface of the inverter.
"Backup Power"
Parameter
Value range
"Backup Nom- 220 240 V inal Voltage"
"Backup Undervoltage Protection Limit U< [pu]"
0 2 %V
"Backup Undervoltage Protection Time U<"
"Backup Overvoltage Protection Limit U> [pu]"
0.04 20 s 0 2 %V
"Backup Overvoltage Protection Time U>"
"Backup Restart Delay"
"Backup Restart Attempts"
0.04 20 s 0 600 s 1 10
"Backup Ex-
Off
ternal Frequency Check"
On
(Italy only)
"Backup Short Circuit Trip Time"
0.001 60 s
Description
Is the nominal phase voltage output in backup power mode.
The setting value is used to set the limit value for switching off backup power mode, e. g. setting value 0.9 = 90% of the nominal voltage.
Triggering time for falling below the backup power undervoltage protection limit value.
The setting value is used to set the limit value for switching off backup power mode, e. g. setting value 1.1 = 110% of the nominal voltage.
Triggering time for exceeding the backup power overvoltage protection limit value.
Is the waiting time for resumption of backup power mode after a shutdown.
Is the max. number of automatic restart attempts. When the max. number of automatic restart attempts is reached, the service message 1177 must be acknowledged manually.
The function is deactivated
For backup power mode (Full Backup) in Italy, the external frequency check must be activated. Before ending backup power mode, the grid frequency is checked. When the grid frequency is in the allowed limit range, the loads are connected to the public grid.
If a short circuit occurs in backup power mode, this mode is interrupted within the set time.
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Energy management
Maximum permitted battery charging from the public grid
New rules for charging batteries will apply in Germany from 1 January 2024. The maximum charging power from public grids is 4.2 kW when controlled in accordance with Section 14a of the EnWG (Law on the Fuel and Electricity Industries). The inverter must establish a connection to Solar.web for documentation purposes and be permanently connected to the internet in order to be able to prove the implementation of the external control commands. The charging power is limited to a value below this by default. Make sure not to use more than the allowed 4.2 kW charging power.
Energy management
"Self-Consumption Optimization" Set the operating mode to "Manual" or "Automatic". The inverter always regulates to the set "Target Value at Feed-In Point". In the "Automatic" operating mode (factory setting), an adjustment is made to 0 W at the feed-in point (maximum self-consumption).
The "Target Value at Feed-In Point" also applies if a further source feeds into this Smart Meter. However, in this case: - The Fronius Smart Meter must be installed and configured at the feed-in
point. - The "Allow battery charging from additional producers in home network"
function must be activated in the "Components" "Battery" menu area.
"Target Value at Feed-In Point" If "Manual" has been selected under Self-Consumption Optimization, the "Operating Mode" ("Consumption"/"Feed-In") and the "Target Value at Feed-In Point" can be set.
IMPORTANT! "Self-Consumption Optimization" has lower priority than "Battery Management".
External producers (only possible with active battery) If further decentralised producers are installed in the house, and these are incorporated into the self-consumption control of the Fronius Hybrid inverter, the setting "Allow battery charging from additional producers in home network" must be activated in the menu area "Device Configuration" "Components" (see Components on page 108 .This means that energy can be drawn from the home network and fed into the battery via the Fronius inverter (battery support required). You can restrict how much power is consumed by the Fronius inverter by specifying the maximum AC power (AC max.). A maximum power consumption of the AC rated power of the Fronius inverter is possible.
"Battery Management" Using the time-dependent battery control, it is possible to prevent or restrict charging/discharging of the battery and to specify a defined charging power.
Battery management is influenced by the following settings, for example: - Permitted battery charging from the public grid - Power limitation of the inverter, energy storage device or overall system - Control specifications via Modbus - Self-consumption optimization
IMPORTANT! The defined rules for battery control have the second lowest priority after Self-
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Consumption Optimization. Depending on the configuration, the rules may not be satisfied due to other settings.
The following values can be selected for the rules of the time-dependent battery control: - "Max. charging power"
The battery is charged to the maximum level with the value set in the "Power" input field. If no feed-in to the public grid and/or direct consumption in the house is possible, the set "Max. charging power" value is ignored and the energy generated is charged into the battery. - "Min charging power" The battery is charged as a minimum by the value set in the input field "Power". - "Max discharge power" The battery is discharged at most by the value set in the input field "Power". - "Min discharge power" The battery is discharged as a minimum by the value set in the input field "Power".
The timing for when the rule applies is set in the "Time" input fields and by selecting the relevant "Weekdays".
It is not possible to define a time window over midnight (00:00). Example: To set a control from 22:00 to 06:00, two inputs are required: "22:00 23:59" and "00:00 - 06:00".
Examples Time-dependent battery control
The examples below serve to explain the energy flows. Efficiency levels are not taken into account.
Example: Battery system PV system available power Power into the battery Power output (AC) of the inverter Target value set at feed-in point Infeed into the public grid Consumption in home
1000 W
1000 W 500 W 500 W 0 W 0 W 500 W
500 W
0 W
TARGET: 0W
0
0
1
6 7
-+ 500 W
500 W
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Example: Battery system without photovoltaics, including second producer in the house
Power into the battery
1500 W
Power consumption (AC) of the inverter
1500 W
Second producer in home network
2000 W
Target value set at feed-in point
0 W
Infeed into the public grid
0 W
Consumption in home
500 W
2000 W
1500 W
0 W
TARGET: 0W
0
0
1
6 7
-+ 1500 W
500 W
Example: Battery system including second producer in the house
PV system available power
Power into the battery
Power consumption (AC) of the inverter
Second producer in home network
Target value set at feed-in point
Infeed into the public grid
Consumption in home
1000 W
2000 W
1000 W 2500 W 1500 W 2000 W
0 W 0 W 500 W
1500 W
0 W
TARGET: 0W
0
0
1
6 7
-+ 2500 W
500 W
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Example: Battery system including second producer in the house (with AC max. limitation)
PV system available power
1000 W
Power into the battery
2000 W
Power consumption AC max. limited to
1000 W
Power consumption (AC) of the inverter
1000 W
Second producer in home network
2000 W
Target value set at feed-in point
0 W
Infeed into the public grid
500 W
Consumption in home
500 W
1000 W
2000 W
AC MAX: 1000 W 1000 W
TARGET: 0W
0
0
1
6 7
500 W
-+ 2000 W
500 W
Allowed battery control rules
A rule always consists of a restriction or parameter and the time control "Time" and "Weekdays" while the rule is active. Rules with the same restriction (e.g. max. charging power) must not overlap in time.
Max. charging and discharging limits The max. charging/max. discharging power can be configured at the same time.
Limit discharge power
Max. discharge power 2000 W
0 W
Max. charging power 2000 W
1. Max. charging power 2000 W 00:00 23:59 Mo Tu We Th Fr Sa Su 2. Max. discharging power 2000 W 00:00 23:59 Mo Tu We Th Fr Sa Su
Limit charging power
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Specifying the charging range It is possible to define a charging range with a min. and max. charging limit. In this case, it is not possible for the battery to discharge.
Limit discharge power
0 W
Min. charging power 500 W
Max. charging power 3800 W
Limit charging power
1. Min. charging power 500 W 03:00 04:00 Mo Tu We Th Fr Sa Su
2. Max. charging power 3800 W 03:00 04:00 Mo Tu We Th Fr Sa Su
Specifying the discharging range It is possible to define a discharging range with a min. and max. discharging limit. In this case, it is not possible for the battery to charge.
Limit discharge power
Max. discharge power 3000 W
0 W
Min. discharge power 1000 W
Limit charging power
1. Max. discharging power 3000 W 13:00 14:00 Mo Tu We Th Fr Sa Su
2. Min. discharging power 1000 W 00:00 23:59 Mo Tu We Th Fr Sa Su
Specifying a defined charging power A defined charging power can be specified by setting the min. and max. charging power to the same value.
Limit discharge power
0 W
Min./Max. charging power 3000 W
Limit charging power
1. Min. charging power 3000 W 03:00 04:00 Mo Tu We Th Fr Sa Su 2. Max. charging power 3000 W 03:00 04:00 Mo Tu We Th Fr Sa Su
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Specifying a defined discharging power A defined discharging power can be specified by setting the min. and max. discharging power to the same value.
Limit discharge power
Min./Max. discharging power 3000 W
0 W
Limit charging power
1. Min. discharging power 3000 W 13:00 14:00 Mo Tu We Th Fr Sa Su
2. Max. discharging power 3000 W 13:00 14:00 Mo Tu We Th Fr Sa Su
Possible applications - Time-dependent electricity tariffs - Battery reservation for market-specific power limitation - Time-dependent storage reservation for a backup power situation
PV power reduction
The rules in the "Battery Management" menu area enable optimum use of the energy generated. Situations may arise, however, in which PV power cannot be used in full due to the time-dependent battery control.
Example Fronius inverter (max. output power) Defined battery discharging PV power
6000 W 6000 W 1000 W
In this case, the inverter would have to reduce the PV power to 0 W, since the output power of the inverter is max. 6000 W and this is already being used to capacity by the battery discharging.
Since it doesn't make sense to waste PV power, the power limit is automatically adjusted in Battery Management such that no PV power is wasted. In the example above, this means that the battery is discharged only at 5000 W, so that the 1000 W PV power can be used.
Load management
"Priorities" If additional components (e.g. battery, Fronius Ohmpilot) are present in the system, the priorities can be set here. Devices having higher priority are actuated first, and subsequently, if there is still excess energy available, the other devices.
IMPORTANT! If there is a Fronius Wattpilot in the photovoltaic system, it is seen as a load. The priority for the load management of the Wattpilot must be configured in the Fronius Solar.Wattpilot app.
"Rules" It is possible for up to four different load management rules to be defined. At the same threshold values, the rules are activated in succession. For deactivation, this is done in reverse; the I/O last switched on is the first to be switched
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off. In the case of different thresholds, the I/O with the lowest threshold is switched on first, followed by the second lowest, and so on. I/Os controlled by the produced power are always prioritised over a battery and Fronius Ohmpilot. That is to say that an I/O can switch on and result in the battery no longer being charged or the Fronius Ohmpilot no longer being activated. IMPORTANT! An I/O is activated/deactivated only after 60 seconds. "Load" - Control is "Off" (disabled). - Control is effected by the "Power Production". - Control is effected by "Power Surplus" (given feed limits). This option can
only be selected if a meter has been connected. Control is effected using the actual power of feeding in with respect to the grid. "Thresholds" - "On": For entering an effective power limit, at which the output is activated. - "Off": For entering an effective power limit, at which the output is deactivated. "Duration" - Field for enabling "Minimum duration per on-signal", a minimum duration for which the output is to be activated for each switch-on process. - Field for activating the "Maximum duration per day". - Field for enabling a "Desired duration" for which the output is to be activated in total per day (total of several switch-on processes).
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System
General
General settings
1 In the "System name" input field, enter the name of the system (max. 30 characters).
2 "Synchronize time automatically" enabled select "Area time zone" and "Location time zone". The date and time are applied from the time zone entered.
2 "Synchronize time automatically" disabled enter or select "Date", "Time", "Area time zone" and "Location time zone".
3 Click on the "Save" button.
Update
All available updates are made available on the product page and in the "Download search" area under www.fronius.com .
Firmware update 1 Drag the firmware file into the "Drag&Drop file here" field or select it using
"Select file".
The update will start.
Setup wizard
The guided setup wizard can be accessed here.
Restoring the factory settings
All settings All configuration data is reset with the exception of the country setup. Changes to the country setup may only be carried out by authorized personnel.
All settings with no network All configuration data is reset with the exception of the country setup and the network settings. Changes to the country setup may only be carried out by authorized personnel.
Event Log
Current Messages All current events of the connected system components are shown here.
IMPORTANT! Depending on the type of event, these must be confirmed via the "tick" button in order to be processed further.
History All events of the connected system components that no longer exist are shown here.
Information
This menu displays all system information and the current settings.
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Save as PDF 1 Click on the "Save as PDF" button. 2 Individually select information with the "tick" next to the information or tick
to "Select all". 3 Enter the file name in the input field and click on the "Save" button.
The PDF is created and displayed.
License Manager
The licence file contains the performance data and the scope of functions of the inverter. When replacing the inverter, power stage set or data communication area, the licence file must also be replaced.
Licensing - online (recommended): An Internet connection and completed configuration on Solar.web is required.
1 Complete the installation work (see chapter Closing the inverter's connection area/housing cover, and commissioning on page 101).
2 Connect to the user interface of the inverter.
3 Enter the serial number and verification code (VCode) of the defective and replacement unit. The serial number and the VCode can be found on the rating plate of the inverter (see chapter Warning notices on the device on page 57).
4 Click on the "Start online licensing" button.
5 Skip the Terms of use and Network settings menu items by clicking on "Next".
The licence activation starts.
Licensing - offline: There must be no Internet connection for this. When licensing offline with an established internet connection, the licence file is automatically uploaded to the inverter. Therefore, when uploading the licence file, the following error occurs: "The licence has already been installed and the wizard can be closed".
1 Complete the installation work (see chapter Closing the inverter's connection area/housing cover, and commissioning on page 101).
2 Connect to the user interface of the inverter.
3 Enter the serial number and verification code (VCode) of the defective and replacement unit. The serial number and the VCode can be found on the rating plate of the inverter (see chapter Warning notices on the device on page 57).
4 Click on the "Start offline licensing" button.
5 Download the service file onto the end device by clicking on the "Download service file" button.
6 Open the website licensemanager.solarweb.com and log in with your user name and password.
7 Drag or upload the service file into the "Drop service file here or click to upload" field.
8 Download the newly generated licence file onto the end device using the "Download license file" button.
9 Go to the user interface of the inverter and drag the licence file into the "Drag & drop license file here" field, or select it via "Choose license file".
The licence activation starts.
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Support
Enable Support User 1 Click the "Enable Support User" button.
The support user is enabled.
IMPORTANT! The support user only allows Fronius Technical Support to implement settings on the inverter via a secure connection. The button "Terminate Support User Session" deactivates the access.
Generate support info (for Fronius Support team) 1 Click on the "Generate support info" button. 2 The sdp.cry file is downloaded automatically. To download manually, click on
the "Download Support-Info" button.
The sdp.cry file is saved in the downloads.
Activate Remote Access 1 Click on the "Activate Remote Access" button.
Remote maintenance access for the Fronius Support team is enabled.
IMPORTANT! Remote maintenance access gives Fronius Technical Support exclusive access to the inverter via a secure connection. Diagnostic data is transmitted here that can be used for troubleshooting purposes. Only enable remote maintenance access following a request from the Fronius Support team.
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Communication
Network
Server addresses for data transfer If a firewall is used for outgoing connections, the following protocols, server addresses and ports must be allowed for successful data transfer: - Tcp fronius-se-iot.azure-devices.net:8883 - Tcp fronius-se-iot-telemetry.azure-devices.net:8883 - Tcp fronius-se-iot-telemetry.azure-devices.net:443 - Udp sera-gen24.fronius.com:1194 (213.33.117.120:1194) - Tcp cure-se.fronius.com:443 - Tcp firmware-download.fronius.com:443 - Tcp froniusseiot.blob.core.windows.net:443 - Tcp provisioning.solarweb.com:443 - Upd/Tcp 0.time.fronius.com:123
When using FRITZ!Box products, the Internet access must be configured to be unlimited and unrestricted. The DHCP Lease Time (validity) must not be set to 0 (=infinite).
LAN:
Establishing a connection: 1 Enter host name. 2 Select connection type "automatic" or "static". 3 For connection type "static": enter IP address, subnet mask, DNS and gate-
way. 4 Click on the "Connect" button.
ü The connection is established.
After connecting, the status of the connection should be checked (see "Internet Services" on page 126).
WLAN:
Establishing a connection via WPS: ¨ The access point of the inverter must be active. It is opened by touching the
sensor communication LED flashes blue. 1 Establish the connection to the inverter in the network settings (the inverter
is displayed with the name "FRONIUS_" and the serial number of the device). 2 Enter the password from the rating plate and confirm.
IMPORTANT! To enter the password on a Windows 10 operating system, the link "Connect using a security key instead" must first be activated to establish a connection with the password. 3 In the browser address bar, enter and confirm the IP address 192.168.250.181.
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4 In Network Settings, click on the "Enable" button under WLAN - WPS. 5 Activate WPS on the WLAN router (see documentation provided with the
WLAN router). 6 Click the "Start" button. The connection is established automatically. 7 Log in to the user interface of the inverter. 8 Check network details and Fronius Solar.web connection
After connecting, the status of the connection should be checked (see "Internet Services" on page 126).
Select and connect WLAN network: The networks found are shown in the list. Clicking on the refresh button will carry out a second search of the available WLAN networks. The "Find network" input field can be used to further restrict the selection list. 1 Select network from the list. 2 Select connection type "automatic" or "static". 3 For connection type "automatic": enter WLAN password and host name. 4 For connection type "static": enter IP address, subnet mask, DNS and gate-
way. 5 Click on the "Connect" button.
ü The connection is established.
After connecting, the status of the connection should be checked (see "Internet Services" on page 126).
Access point:
Modbus
The inverter serves as an access point. A PC or smart device connects directly to the inverter. It is not possible to connect to the internet. The "Network name (SSID)" and "Network key (PSK)" can be assigned in this menu. It is possible to operate a connection via WLAN and via access point simultaneously.
Modbus RTU interface 0 / 1
If one of the two Modbus RTU interfaces is set to Slave, the following input fields are available:
Baud rate The baud rate influences the transmission speed between the individual components connected in the system. When selecting the baud rate, ensure that it is the same at both the sending and receiving end.
Parity The parity bit can be used to check the parity. It detects transmission errors. A parity bit can safeguard a specific number of bits. The value (0 or 1) of the parity bit must be calculated by the sender and is checked by the recipient using the same calculation. The parity bit can be calculated for even and odd parity.
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SunSpec Model Type Depending on the SunSpec model, there are two different settings.
float: SunSpec Inverter Model 111, 112, 113 or 211, 212, 213. int + SF: SunSpec Inverter Model 101, 102, 103 or 201, 202, 203. Meter address
The value entered is the identification number (Unit ID) assigned to the meter.Can be found on the user interface of the inverter in the Communication Modbus menu. Factory setting: 200 Meter address The value entered is the identification number (Unit ID) assigned to the meter. Can be found on the user interface of the inverter in the Communication Modbus menu. Factory setting: 1
Slave as Modbus TCP
This setting is necessary to enable inverter control via Modbus. If the function Slave as Modbus TCP is activated, the following input fields are available:
Modbus port Number of the TCP port that is to be used for Modbus communication. SunSpec Model Type Depending on the SunSpec model, there are two different settings.
float: SunSpec Inverter Model 111, 112, 113 or 211, 212, 213. int + SF: SunSpec Inverter Model 101, 102, 103 or 201, 202, 203. Meter address The value entered is the identification number (Unit ID) assigned to the meter.Can be found on the user interface of the inverter in the Communication Modbus menu. Factory setting: 200 Inverter address The value entered is the identification number (Unit ID) assigned to the inverter. Can be found on the user interface of the inverter in the Communication Modbus menu. Factory setting: This value is invariably defined as 1. Inverter control via Modbus
If this option is activated, the inverter is controlled via Modbus. Inverter control includes the following functions: - on/off - Power reduction - Specification of a constant power factor (cos phi) - Specification of a constant reactive power value - Battery control specifications with battery Restrict Control An IP address can be entered here, which is the only one authorised to control the inverter.
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Remote control
Remote control and Profiles The grid operator/energy supplier can influence the output power of the inverter by means of remote control. The prerequisite for this is for the inverter to have an active internet connection.
Parameter
Value range
Remote control Off
On
Allow remote control for regulatory purposes (Technician)
Allow remote control for Virtual Power Plants (Customer)
Deactivated/ Activated
Deactivated/ Activated
Description
Remote control of the inverter is deactivated.
Remote control of the inverter is activated.
The function Allow remote control for regulatory purposes may be mandatory for proper operation of the system. *)
If the Allow remote control for regulatory purposes function is enabled (technician access required), the Allow remote control for Virtual Power Plants function is automatically enabled and cannot be disabled. *)
*) Cloud Control A virtual power plant is an interconnection of several power plant operators to form a network. This network can be controlled via the cloud over the internet. The inverter must have an active internet connection for this. System data is transmitted.
Fronius Solar API
The Fronius Solar API is an IP-based, open JSON interface. When enabled, IOT devices on the local network can access inverter information without authentication. For security reasons, the interface is deactivated at the factory and must be activated if it is required for a third-party application (e.g. EV charger, smart home solutions, etc.) or the Fronius Wattpilot.
For monitoring, Fronius recommends using Fronius Solar.web, which provides secure access to inverter status and production information.
When performing a firmware update to version 1.14.x, the setting of the Fronius Solar API is adopted. The Solar API is activated for systems with a version below 1.14.x. Above this version it is deactivated but can be switched on and off in the menu.
Activate the Fronius Solar API Enable the "Activate communication via Solar API" function on the user interface of the inverter in the "Communication" "Solar API"menu.
Internet Services
This menu displays information about the connections and the current connection status. In case of problems with the connection, a short error description is shown.
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Safety and grid requirements
Country setup
WARNING!
Danger due to unauthorised error analyses and repair work. This can result in serious injury and damage to property.
Fault analyses and repair work on the photovoltaic system may only be carried out by installers/service technicians from authorised specialist companies in accordance with national standards and guidelines.
NOTE!
Risk due to unauthorised access. Incorrectly set parameters can negatively influence the public grid and/or the inverter feeding energy into the grid, and lead to a loss of conformity with the standard.
The parameters may only be adjusted by installers/service technicians from authorised specialist companies.
Do not give the access code to third parties and/or unauthorised persons.
NOTE!
Risk due to incorrectly set parameters. Incorrectly set parameters can negatively influence the public grid and/or cause faults and failures on the inverter, and lead to the loss of conformity with the standard.
The parameters may only be adjusted by installers/service technicians from authorised specialist companies.
The parameters may only be adjusted if the energy provider permits or requires this.
Only adjust the parameters taking into account the nationally applicable standards and/or directives and the specifications of the energy provider.
The "Country Setup" menu area is intended exclusively for installers/service technicians from authorised specialist companies. To request the access code required for this menu area, see chapter Requesting inverter codes in Solar.SOS.
The selected country setup for the respective country contains preset parameters according to the nationally applicable standards and requirements. Depending on local grid conditions and the specifications of the energy provider, adjustments to the selected country setup may be necessary.
Requesting inverter codes in Solar.SOS
The "Country Setup" menu area is intended exclusively for installers/service technicians from authorised specialist companies. The inverter access code required for this menu area can be requested in the Fronius Solar.SOS portal.
Requesting inverter codes in Solar.SOS: 1 Go to solar-sos.fronius.com in a browser 2 Log in with your Fronius account 3 On the top right, click on the drop-down menu
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4 Select the menu item Show inverter codes ü A contract page appears on which the request for the access code to change the grid parameters for Fronius inverters is located
5 Accept the Terms of use by checking Yes, I have read and agree to the terms of use and click Confirm & Save
6 After that, the codes can be retrieved in the drop-down menu at the top right under Show inverter codes
CAUTION!
Risk due to unauthorised access. Incorrectly set parameters can negatively influence the public grid and/or the inverter feeding energy into the grid, and lead to a loss of conformity with the standard.
The parameters may only be adjusted by installers/service technicians from authorised specialist companies.
Do not give the access code to third parties and/or unauthorised persons.
Feed-in limitation
Energy companies or grid operators may stipulate feed-in limitations for an inverter (e.g. max. 70% of kWp or max. 5 kW). The feed-in limitation takes account of self-consumption by the household before the power of an inverter is reduced: - A custom limit can be set. - A Fronius Smart Meter can be connected to the Modbus push-in terminal of
the data communication area at the M0/M1- / M0/M1+ connections for Modbus data.
With the inverter, any PV power that is not allowed to be fed into the public grid is used to charge the battery instead and/or used by the Fronius Ohmpilot so that it does not go to waste. The feed-in limitation is only active if the power fed in is higher than the set power reduction.
"Power limitation" deactivated The inverter converts the entire available PV power and feeds it into the public grid.
"Power limitation" activated The entire PV system is restricted to a set power limit. The value of the total permissible feed-in power must be set.
"Total DC system power" Input field for the total DC system power in Wp. This value is used if the "Maximum permitted feed-in power of the entire system" is specified in %.
"Soft Limit" If this value is exceeded, the inverter will regulate down to the set value within the time required by national standards and regulations.
"Hard Limit" If this value is exceeded, the inverter switches off within max. five seconds. This value must be higher than the value set for "Soft Limit".
"Maximum permitted feed-in power of the entire system" Input field for the "Maximum permitted feed-in power of the entire system" in W or % (setting range: -10 to 100 %).
128
If there is no meter in the system or if a meter has failed, the inverter limits the feed-in power to the set value.
Example: Feed-in limitation (without consideration of the efficiency) PV system on Fronius inverter: Consumption in home: Maximum permitted feed-in power of the entire system:
5,000 W 1,000 W 60 % = 3,000 W
Case 1: The battery can be charged Power at grid feed-in point: Power at inverter output: Power into the battery:
0 W 1,000 W 3,000 W
Case 2: The battery cannot be charged
Power at grid feed-in point
3,000 W
Power at inverter output:
4,000 W
Power into the battery:
0 W
In this example, no more than 3,000 W may be fed into the grid at the grid feed-in point. However, any loads that are located between the inverter and the grid feed-in point can be supplied by additional power from the inverter. These loads are also compensated as required.
Dynamic power regulation with several inverters
Example 1: Fronius SnapINverter Fronius Primo GEN24 Only one primary meter is required for the Fronius Primo GEN24 inverter.
The power values shown are an example. Inverter configurations with power values other than those shown in the example are possible, taking into account the criteria for this example.
IMPORTANT! Zero feed-in is not possible when using 2 inverters.
129
0 0 1 67
6 kW
1
Settings on the user interface of the Fronius Primo GEN24 inverter:
1 Configure the primary meter at the feed-in point in the "Device configuration" "Components" menu.
2 Activate the limit for the entire system in the "Safety and grid regulations" "Export limitation" menu. Enter the DC rated power of the entire PV system in the "Total DC system power" input field. Enter the percentage value (50%, 60% or 70%) in the "Maximum permitted feed-in power of the entire system" input field.
Example 2a: Fronius SnapINverter > Fronius Primo GEN24 Two primary meters are required for the inverters.
The power values shown are an example. Inverter configurations with power values other than those shown in the example are possible, taking into account the criteria for this example.
IMPORTANT! With two primary meters at the feed-in point without a secondary meter, Fronius SnapINverter and Fronius Primo GEN24 inverters cannot be displayed as a combined PV system in Solar.web. Two individual PV systems must be created in Solar.web.
130
15 kW 6 kW
0 0 1 67
1
0
0
1
6 7
1
Settings on the user interface of the Fronius Primo GEN24 inverter:
1 Configure the primary meter at the feed-in point in the "Device configuration" "Components" menu.
Settings in the system monitoring of the Fronius SnapInverter:
1 Configure the primary meter at the feed-in point in the "Settings " "Meter" menu.
2 Activate the limit for the entire system in the "DNO Editor" "Dynamic power reduction" menu. Enter the DC rated power of the entire PV system in the "Total DC system power" input field. Enter the percentage value (50%, 60% or 70%) in the "Max. grid feed-in power" input field.
Example 2b: Fronius SnapINverter > Fronius Primo GEN24 Two primary meters and one secondary meter are required for the inverters.
The power values shown are an example. Inverter configurations with power values other than those shown in the example are possible, taking into account the criteria for this example.
IMPORTANT! In order to be able to record all PV system data in Solar.web in full, only the Fronius Primo GEN24 inverter may be created in this PV system. The Fronius SnapINverter data is transmitted from the secondary meter to the Fronius Primo GEN24 inverter and thus displayed in Solar.web. We recommend that you set up the Fronius SnapINverter as a separate additional PV system in Solar.web for servicing and maintenance work (e.g. status codes, online updates, etc.).
131
15 kW
0 0 1 67
2 6 kW
0 0 1 67
1
0
0
1
6 7
1
Settings on the user interface of the Fronius Primo GEN24 inverter:
1 Configure the primary meter at the feed-in point in the "Device configuration" "Components" menu.
2 Configure the secondary meter in the "Device configuration" "Components" menu.
Settings in the system monitoring of the Fronius SnapInverter:
1 Configure the primary meter at the feed-in point in the "Settings " "Meter" menu.
2 Activate the limit for the entire system in the "DNO Editor" "Dynamic power reduction" menu. Enter the DC rated power of the entire PV system in the "Total DC system power" input field. Enter the percentage value (50%, 60% or 70%) in the "Max. grid feed-in power" input field.
I/O power management
General In this menu item, settings relevant for a distribution network operator (DNO) are made. An effective power limitation in % and/or a power factor limitation can be set.
IMPORTANT! Select the "Technician" user for settings in this menu item, enter and the password for the "Technician" user and confirm. Settings in this menu area must only be made by trained and qualified personnel.
"Input pattern" (assignment of individual I/Os) 1 click = white (contact open) 2 clicks = blue (contact closed) 3 clicks = grey (not used)
"Power factor (cos )" "ind" = inductive "cap" = capacitive
"DNO feedback" When the rule is enabled, output "DNO feedback" (pin 1 recommended) must be configured (e.g. for operating a signalling device).
For "Import" or "Export", the data format *.fpc is supported.
132
Control priorities For setting the control priorities for the ripple control signal receiver, the export limitation and control via Modbus.
1 = highest priority, 3 = lowest priority
Connection diagram - 4 relay
The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).
V+ V+ IO0 IO2 IO4 IN6 IN8 IN10
(1) 100 % 60 % 30 %
0 %
V+ (2)
IN8
IN9
IN10
IN11
GND GND
IO1 IO3 IO5 IN7 IN9 IN11
(1) Ripple control signal receiver with 4 relays, for effective power limiting. (2) I/Os of the data communication area.
Use the preconfigured file for 4-relay mode: 1 Download the file (.fpc) under 4-relay mode onto the end device. 2 Upload the file (.fpc) in the "I/O Power Management" menu using the "Im-
port" button. 3 Click on the "Save" button.
The settings for 4-relay mode are stored.
133
I/O power management settings - 4 relays
I/O Power Management
V+/GND
IO
I
v+ v+ 0 2 4 6 8 10
1 GND GND 3 5 7 9 11
DNO Feedback
not used
DNO Rules
Rule 1
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
100
Power Factor (cos )
1
cap
DNO Feedback
Rule 2
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
60
Power Factor (cos )
1
cap
DNO Feedback
Rule 3
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
30
Power Factor (cos )
1
cap
DNO Feedback
Rule 4
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
0
Power Factor (cos )
1
cap
DNO Feedback
IMPORT
EXPORT
134
0 None 1 None 2 None 3 None 4 None 5 None 6 None 7 None 8 IO control 9 IO control 10 IO control 11 IO control
Connection diagram - 3 relay
The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).
V+ V+ IO0 IO2 IO4 IN6 IN8 IN10
(1) 60 %
30 %
0 %
V+
(2)
IN8
IN9
IN10
GND GND
IO1 IO3 IO5 IN7 IN9 IN11
(1) Ripple control signal receiver with 3 relays, for effective power limiting. (2) I/Os of the data communication area.
Use the preconfigured file for 3-relay mode: 1 Download the file (.fpc) under 3-relay mode onto the end device. 2 Upload the file (.fpc) in the "I/O Power Management" menu using the "Im-
port" button. 3 Click on the "Save" button.
The settings for 3-relay mode are stored.
135
I/O power management settings - 3 relays
I/O Power Management
V+/GND
IO
I
v+ v+ 0 2 4 6 8 10
1 GND GND 3 5 7 9 11
DNO Feedback
not used
DNO Rules
Rule 1
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
100
Power Factor (cos )
1
cap
DNO Feedback
Rule 2
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
60
Power Factor (cos )
1
cap
DNO Feedback
Rule 3
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
30
Power Factor (cos )
1
cap
DNO Feedback
Rule 4
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
0
Power Factor (cos )
1
cap
DNO Feedback
IMPORT
EXPORT
136
0 None 1 None 2 None 3 None 4 None 5 None 6 None 7 None 8 IO control 9 IO control 10 IO control 11 None
Connection diagram - 2 relay
The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).
V+ V+ IO0 IO2 IO4 IN6 IN8 IN10
(1) Relais 1
Relais 2
Relais 1 0 1 0 1
Relais 2 0 0 1 1
Active Power 100 % 60 % 30 % 0 %
V+ (2)
IN8
IN9
GND GND
IO1 IO3 IO5 IN7 IN9 IN11
(1) Ripple control signal receiver with 2 relays, for effective power limiting. (2) I/Os of the data communication area.
Use the preconfigured file for 2-relay mode: 1 Download the file (.fpc) under 2-relay mode onto the end device. 2 Upload the file (.fpc) in the "I/O Power Management" menu using the "Im-
port" button. 3 Click on the "Save" button.
The settings for 2-relay mode are stored.
137
I/O power management settings - 2 relays
I/O Power Management
V+/GND
IO
I
v+ v+ 0 2 4 6 8 10
1 GND GND 3 5 7 9 11
DNO Feedback
not used
DNO Rules
Rule 1
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
100
Power Factor (cos )
1
cap
DNO Feedback
Rule 2
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
60
Power Factor (cos )
1
cap
DNO Feedback
Rule 3
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
30
Power Factor (cos )
1
cap
DNO Feedback
Rule 4
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
0
Power Factor (cos )
1
cap
DNO Feedback
IMPORT
EXPORT
138
0 None 1 None 2 None 3 None 4 None 5 None 6 None 7 None 8 IO control 9 IO control 10 None 11 None
Connection diagram - 1 relay
The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).
V+ V+ IO0 IO2 IO4 IN6 IN8 IN10
(1) 100 %
(2)
V+ IN8
GND GND
IO1 IO3 IO5 IN7 IN9 IN11
(1) Ripple control signal receiver with 1 relay, for effective power limiting. (2) I/Os of the data communication area.
Use the preconfigured file for 1-relay mode: 1 Download the file (.fpc) under 1-relay mode onto the end device. 2 Upload the file (.fpc) in the "I/O Power Management" menu using the "Im-
port" button. 3 Click on the "Save" button.
The settings for 1-relay mode are stored.
139
I/O power management settings - 1 relay
I/O Power Management
V+/GND
IO
I
v+ v+ 0 2 4 6 8 10
1 GND GND 3 5 7 9 11
DNO Feedback
not used
DNO Rules
Rule 1
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
100
Power Factor (cos )
1
cap
DNO Feedback
Rule 2
0 2 4 6 8 10
1 3 5 7 9 11
Active Power
0
Power Factor (cos )
1
cap
DNO Feedback
IMPORT
EXPORT
0 None 1 None 2 None 3 None 4 None 5 None 6 None 7 None 8 IO control 9 None 10 None 11 None
Connecting a ripple control receiver to multiple inverters
The grid operator may request the connection of one or more inverters to a ripple control receiver in order to limit the effective power and/or the power factor of the photovoltaic system.
12 volt power
Coupling relays
140
Connection diagram showing ripple control receiver with multiple inverters
Autotest (CEI 0-21)
The following Fronius inverters can be connected to a ripple control receiver via a distributor (coupling relay): - Symo GEN24 - Primo GEN24 - Tauro - SnapINverter (only devices with Fronius Datamanager 2.0)
IMPORTANT! The "4-relay mode" setting (see Connection diagram - 4 relay andI/O power management settings - 4 relays) must be enabled on the user interface of each inverter connected to the ripple control receiver.
Description The "Autotest" can be used to check the protection function required by Italian standards for monitoring the voltage and frequency limit values of the inverter during commissioning. In normal operation, the inverter constantly checks the current voltage and frequency actual value of the grid. After starting the autotest, various individual tests run automatically one after the other. Depending on network conditions, the duration of the test is about 15 minutes.
IMPORTANT! The inverter may only be commissioned in Italy after an autotest has been successfully performed (CEI 0-21). If the autotest is not passed, feeding energy into the grid is not permitted. Once the autotest is started, it must be completed successfully. The autotest cannot be started during backup power operation.
U max U min f max f min f max alt f min alt U outer min U longT.
Test for checking the maximum voltage in phase conductors Test for checking the minimum voltage in phase conductors Test for checking the maximum grid frequency Test for checking the minimum grid frequency Test for checking an alternative maximum grid frequency Test for checking an alternative minimum grid frequency Test for checking the minimum external voltages Test for checking the 10-minute mean voltage value
"Save as PDF" 1 Click on the "Save as PDF" button. 2 Enter the file name in the input field and click on the "Print" button.
The PDF is created and displayed.
Note on the autotest The limit values are set in the "Grid Code" menu. The access code for the "Grid Code" menu corresponds to the installer code (PROFI menu) and is only made available after a written request to Fronius. A corresponding application form is available from the national technical support.
141
142
Options
143
144
Surge protective device (SPD)
General Safety
A surge protective device (SPD) protects against temporary overvoltages and dissipates surge currents (e.g. lightning strike). Building on an overall lightning protection concept, the SPD helps to protect your PV system components. For detailed information on the wiring diagram of the surge protective device, see chapter Surge protective device (SPD) on page 228.
If the surge protective device is triggered, the colour of the indicator changes from green to red (mechanical display) and the operation LED of the inverter lights up red (see chapter Button functions and LED status indicator on page 35). The error code "1030 WSD Open" is displayed on the user interface of the inverter in the "System" "Event Log" menu or in the user menu under "Notifications" as well as in Fronius Solar.web. In this case, the inverter must be repaired by an authorised specialist.
IMPORTANT! The inverter also switches off if the 2-pin signal cable of the surge protective device is interrupted or damaged.
External surge protective device To receive notification when external surge protective devices are triggered, it is recommended to connect the feedback contacts in series to the WSD input.
WARNING!
Danger due to electrical voltage on live parts of the photovoltaic system. This can result in serious injury and damage to property.
Disconnect live parts of the photovoltaic system on all pins and on all sides. Secure against re-activation in accordance with national regulations. Allow the capacitors of the inverter to discharge (2 minutes). Check that the inverter is de-energised with a suitable measuring device.
WARNING!
Danger due to work that has been carried out incorrectly. This can result in serious injury and damage to property.
Installing and connecting an option must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.
Follow the safety rules.
Scope of supply
The surge protective device (SPD) is an optional extra and can be retrofitted to the inverter.
For technical data, see chapter "Technical data" on page 182.
145
1. PC board 2. 4 TX20 screws 3. Ground conductor 4. 2-pin signal cable 5. PV cable 6. PV+ cable 7. User Information
De-energising the inverter
1
1
AC~ OFF
2
Turn off the automatic circuit breaker. Set the DC disconnector to the "Off" switch position.
OFF
2 ON
Disconnect connections from the solar module strings (+/-). Switch off the battery connected to the inverter. Wait for the capacitors of the inverter to discharge (2 minutes).
146
Installation
CAUTION!
Danger due to insufficiently dimensioned ground conductor. Damage to the inverter due to thermal overload can result.
The national standards and guidelines must be observed for dimensioning the ground conductor.
1
Loosen the two screws on the under-
side of the housing cover by rotating
them 180° to the left using a screw-
driver (TX20). Then lift the housing
cover away from the inverter at the
bottom and detach from above.
2
Loosen the five screws of the connec-
tion area cover by rotating them 180°
to the left using a screwdriver (TX20).
Remove the connection area cover
from the device.
3
1 1
1
Remove the connection area divider by pressing the snap tabs.
147
4 1
PUSH
1
5 2
1
DC Voltage
Remove the DC push-in terminals from the slots and disconnect them from the cables (only necessary if the installation already exists).
PV+ / PV-
2 3
Connect the supplied PV+/PV- cables to the respective connections.
IMPORTANT! PV+ Note the labelling of the cables when
connecting. PV-
PV1 PV1 PV2 PV2 BAT + ++++
BAT PV2 PV2 PV1 PV1 -----
PV2PV1-
PV2+ PV1+
6
Connect the supplied cables to the re-
spective connections on the PC board.
IMPORTANT! The plugs must be connected onto the PC board as far as they will go.
148
7
Insert the PC board into the inverter
and secure with the four screws (TX20)
supplied at a torque of 1.0 1.2 Nm.
8 1,5 Nm
TX 20
§
National Standards
9
max. Ø10mm Ø4mm
210mm
CU-Wire min. 75°C / 167°F min. 6mm² - max. 16mm²
IMPORTANT! Depending on national standards and guidelines, a larger cross section of the ground conductor may be required.
Dimension the cable cross section of the ground conductor according to the national standards and guidelines and fit a ring cable lug (inner diameter: 4 mm, outer diameter: max. 10 mm) as well as a corresponding ferrule. Fasten the ground conductor to the PC board with a torque of 1.5 Nm.
Fasten the ground conductor to the first input from the bottom of the ground electrode terminal using a screwdriver (TX20) and a torque of 1.8 - 2 Nm.
IMPORTANT! The use of other inputs can make it difficult to insert the connection area divider or damage the ground conductor.
149
10
11
"click"
1 2
Strip the insulation on the single conductors by 12 mm and secure to the corresponding slot of the terminal on the PC board with a torque of 1.2 - 1.5 Nm.
IMPORTANT! The cable cross-section must be selected according to the specifications for the respective inverter power category (see chapter Permissible cables for the electrical connection on page 67).
Push the DC push-in terminals into the corresponding slot until there is an audible click.
12 1
Re-insert the connection area divider.
* Lay the ground conductor in the integrated cable duct.
IMPORTANT! Make sure when inserting the connection area divider that the ground conductor is not damaged (kinked, pinched, crushed, etc.).
150
13
Remove the factory installed bypass
on the push-in WSD terminal.
WSD
1
14
Connect the signal cable to the push-
in WSD terminal on the IN- and IN+
slots, observing the labelling.
IN- & IN+
1 2
15
Check whether the WSD switch is in
position 1, adjust if necessary (factory
setting: position 1).
151
16 17
Commissioning
1
the inverter
Place the cover on the connection area. Tighten the five screws by rotating them 180° to the right in the indicated order using a screwdriver (TX20).
Clip the housing cover onto the inverter from above. Press on the lower part of the housing cover and tighten the two screws by rotating them 180° to the right using a screwdriver (TX20).
Connect the solar module strings (+/-). Switch on the battery connected to the inverter.
152
2
Set the DC disconnector to the "On"
switch position. Switch on the auto-
matic circuit breaker.
153
DC Connector Kit GEN24
General
The DC Connector Kit GEN24 (item no.: 4,240,046) enables the connection of PV connection strings with a total current above 25 A.
General comments regarding PV modules
To enable suitable PV modules to be chosen and to use the inverter as efficiently as possible, it is important to bear the following points in mind: - If insolation is constant and the temperature is falling, the open-circuit
voltage of the PV modules will increase. The open-circuit voltage must not exceed the maximum permissible system voltage. If the open-circuit voltage exceeds the specified values, the inverter will be destroyed and all warranty claims will be forfeited. - The temperature coefficients on the data sheet of the PV modules must be observed. - Exact values for sizing the PV modules can be obtained using suitable calculation tools, such as the Fronius Solar.creator.
IMPORTANT! Before connecting up the PV modules, check that the voltage for the PV modules specified by the manufacturer corresponds to the actual measured voltage.
IMPORTANT! The PV modules connected to the inverter must comply with the IEC 61730 Class A standard.
IMPORTANT! Solar module strings must not be earthed.
Safety
WARNING!
Danger due to incorrect operation and incorrectly performed work. This can result in serious injury and damage to property.
Commissioning as well as maintenance and service work in the power module of the inverter must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.
Read the Installation and Operating Instructions before installing and commissioning the equipment.
154
WARNING!
Danger due to grid voltage and DC voltage from solar modules that are exposed to light. This can result in serious injury and damage to property.
Ensure that the AC and DC side of the inverter are de-energised before carrying out any connection, maintenance or service tasks.
Only an authorised electrical engineer is permitted to connect this equipment to the public grid.
WARNING!
Danger due to damaged and/or contaminated terminals. This can result in serious injury and damage to property.
Before making any connections, check the terminals for damage and contamination.
Remove contamination in the de-energized state. Have defective terminals repaired by an authorised specialist.
Scope of supply
The DC Connector Kit GEN24 is an optional extra and can be retrofitted to the inverter.
1. User Information 2. 2 TX20 screws 3. DC Connector Kit GEN24
De-energising the inverter
1
1
AC~ OFF
Turn off the automatic circuit breaker. Set the DC disconnector to the "Off" switch position.
OFF 2 ON
155
2
Disconnect connections from the solar
module strings (+/-). Switch off the
battery connected to the inverter.
Wait for the capacitors of the inverter to discharge (2 minutes).
Installation
CAUTION!
Danger due to insufficiently dimensioned DC cables. Damage to the inverter due to thermal overload can result.
When dimensioning the DC cables, adhere to the specifications in chapter Permissible cables for the electrical connection on page 67.
1
Loosen the 2 screws on the underside
of the housing cover by rotating them
180° to the left using a screwdriver
(TX20). Then lift the housing cover
away from the inverter at the bottom
and detach from above.
2
Loosen the 5 screws of the connection
area cover by rotating them 180° to
the left using a screwdriver (TX20).
Remove the connection area cover
from the device.
156
3
Insert the DC Connector GEN24 into
the inverter and secure with the two
screws (TX20) supplied at a torque of
1.0 1.2 Nm.
4
Manually push the DC cables through
the DC bushings.
5
Press the lock on the back of the ter-
minal and pull off the DC terminals.
6
Strip the insulation of the single con-
ductors by 18 20 mm.
Select the cable cross section in ac-
cordance with the instructions in Per-
missible cables for the electrical con-
nection from page 67.
157
7
Use a slotted screwdriver to push in
the lock on the terminal. Insert the
stripped single conductor into the slot
provided, in each case as far as it will
go. Then withdraw the slotted screw-
driver from the lock.
8
Connect the solar module strings (+/-).
9
Use a suitable measuring instrument
to check the voltage and polarity of
the DC cabling.
CAUTION!
Danger due to polarity reversal at the terminals. This may result in severe damage to the inverter.
Check the voltage (max. 600 VDC) and polarity of the DC cabling with a suitable measuring instrument.
158
10
Insert the DC terminals into the re-
spective slot until they engage. Fasten
the screws of the strain-relief device to
the housing using a screwdriver (TX20)
and a torque of 1.3 1.5 Nm.
NOTE!
Risk due to overtorque at the strainrelief device. This may result in damage to the strain-relief device.
Do not use a drill driver.
11
Place the cover on the connection
area. Tighten the 5 screws by rotating
them 180° to the right in the indicated
order using a screwdriver (TX20).
12
Clip the housing cover onto the invert-
er from above.
Press on the lower part of the housing
cover and tighten the 2 screws by ro-
tating them 180° to the right using a
screwdriver (TX20).
159
Commissioning
1
the inverter
2
Connect the solar module strings (+/-). Switch on the battery connected to the inverter.
Set the DC disconnector to the "On" switch position. Switch on the automatic circuit breaker.
160
PV Point Comfort
Safety
WARNING!
Danger due to electrical voltage on live parts of the photovoltaic system. This can result in serious injury and damage to property.
Disconnect live parts of the photovoltaic system on all pins and on all sides. Secure against re-activation in accordance with national regulations. Allow the capacitors of the inverter to discharge (2 minutes). Check that the inverter is de-energised with a suitable measuring device.
WARNING!
Danger due to work that has been carried out incorrectly. This can result in serious injury and damage to property.
Installing and connecting an option must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.
Follow the safety rules.
WARNING!
Danger due to damaged and/or contaminated terminals. This can result in serious injury and damage to property.
Before making any connections, check the terminals for damage and contamination.
Remove contamination in the de-energized state. Have defective terminals repaired by an authorised specialist.
NOTE!
The continuous supply via the PV Point depends on the available PV power. If the solar modules are not supplying enough power, interruptions may occur.
Do not connect any loads that require an uninterruptible supply.
IMPORTANT! The valid national laws, standards and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied. It is highly recommended that the specific installation be agreed with the grid operator and explicitly approved by this operator. This obligation applies to system constructors in particular (e.g. installers).
Scope of supply
The PV Point Comfort is an optional extra and can be retrofitted to the inverter. For technical data, see "Technical data" on page 182.
161
1. Insulation film 2. PV Point Comfort 3. 4 TX20 screws 4. Cable gland 5. User Information
De-energising the inverter
1
1
AC~ OFF
2
Turn off the automatic circuit breaker. Set the DC disconnector to the "Off" switch position.
OFF
2 ON
Disconnect connections from the solar module strings (+/-). Switch off the battery connected to the inverter. Wait for the capacitors of the inverter to discharge (2 minutes).
162
Installation
CAUTION!
Danger due to insufficiently dimensioned ground conductor. Damage to the inverter due to thermal overload can result.
The national standards and guidelines must be observed for dimensioning the ground conductor.
1
Loosen the 2 screws on the underside
of the housing cover by rotating them
180° to the left using a screwdriver
(TX20). Then lift the housing cover
away from the inverter at the bottom
and detach from above.
2
Loosen the 5 screws of the connection
area cover by rotating them 180° to
the left using a screwdriver (TX20).
Remove the connection area cover
from the device.
3
Press the lock on the back of the ter-
minal and remove the AC terminals.
Loosen the cable gland.
163
4
Disconnect the individual conductors
from the AC terminal (only necessary
if the installation already exists).
5
Remove the mains cable from the in-
verter.
6
Drill out the optional cable guide with
a step drill.
164
7
Insert the cable gland into the hole
and tighten to a torque of 6 Nm.
8
Insert the insulating film on the right
side of the ground electrode terminal.
9
Insert the PC board into the inverter.
165
10
Fasten the PC board with the 4 screws
(TX20) supplied and tighten to a
torque of 1.2 Nm.
11
Strip the insulation of the single conductors by 12 mm. Lift to open the AC terminal's operating lever and insert the stripped single conductor into the slot provided, all the way up to the stop. Then close the operating lever until it engages.
IMPORTANT! The PEN conductor must be produced with ends that are permanently marked blue, according to the national provisions, and have a cross section of 10 mm².
12
Fasten the PEN conductor to the third
input of the ground electrode terminal
from below using a screwdriver (TX20)
and a torque of 1.8 2 Nm.
166
13
Strip the single conductors according
to the specifications based on the
power category of the inverter.
The cable cross-section must be selec-
ted according to the specifications for
the respective power category of the
inverter (see chapter Permissible
cables for the electrical connection on
page 67).
IMPORTANT! If necessary, an automatic circuit breaker with max. 16 A can also be used for protection. In backup power operation, a maximum of 13 A can be provided. The residual current circuit breaker and automatic circuit breaker must be designed according to the national provisions
14
Connect the phase/neutral conductors
to the terminals provided. Fasten the
ground conductor at the first input to
the ground electrode terminal using a
screwdriver (TX20) and a torque of 1.8
2 Nm.
IMPORTANT! The ground conductor must be connected with a movement loop so that if the cable gland fails, the ground conductor is disconnected last.
15
Connect the stripped phase/neutral
conductors to the terminals provided.
167
16
Insert the terminals into the respect-
ive slot until they engage. Fasten the
union nut of the cable gland to a
torque of 4 Nm.
17
Place the cover on the connection
area. Tighten the 5 screws by rotating
them 180° to the right in the indicated
order using a screwdriver (TX20).
18
Clip the housing cover onto the invert-
er from above.
Press on the lower part of the housing
cover and tighten the 2 screws by ro-
tating them 180° to the right using a
screwdriver (TX20).
168
Commissioning
1
the inverter
2
Connect the solar module strings (+/-). Switch on the battery connected to the inverter.
Set the DC disconnector to the "On" switch position. Switch on the automatic circuit breaker.
Configuring PV Point Comfort
Firmware version 1.25.2 or higher is required to commission the PV Point Comfort. Outdated firmware versions could lead to incompatibilities between the inverter and PV Point Comfort. In this case, the inverter firmware should be updated in accordance with the instructions in Update on page 120.
1 Access the user interface of the inverter. - Open your web browser. - In the address bar of the browser, enter the IP address (IP address for WLAN: 192.168.250.181, IP address for LAN: 169.254.0.180) or the host and domain name of the inverter and confirm. - The user interface of the inverter is displayed.
2 Click the "Device configuration" button. 3 Log in to the login area with the "Technician" user and the technician pass-
word.
4 Open the "Functions and I/Os" menu. 5 Enable "Backup power" mode. 6 Select "PV Point" in the "Backup power mode" drop-down list. 7 Click the "Save" button to save the settings.
"PV Point" backup power mode has been configured.
169
Testing backup power mode
After the initial installation and configuration of the backup power operation, it is recommended to test the backup power operation. For test mode, a battery charge of min. 30 % is recommended.
A description on how to run test mode can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).
170
Appendix
171
172
Care, maintenance and disposal
General
The inverter is designed in such a way that no additional maintenance work builds up. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.
Cleaning
Clean the inverter as required with a damp cloth. Do not use cleaning agents, abrasives solvents or similar to clean the inverter.
Maintenance
Maintenance and servicing may only be carried out by Fronius-trained service technicians.
Safety
The DC disconnector is used only to switch off power to the power stage set. When the DC disconnector is turned off, the connection area is still energized.
WARNING!
Danger from grid voltage and DC voltage from PV modules. This can result in serious injury and damage to property.
The connection area must only be opened by an authorised electrician. The separate power stage set area must only be opened by Fronius-trained
service technicians.
Prior to any connection work, disconnect the inverter on the AC side and the DC side.
WARNING!
Danger of residual voltage from capacitors. This can result in serious injury and damage to property.
Allow the capacitors of the inverter to discharge (2 minutes).
Operation in dusty environments
NOTE!
If the inverter is operated in dusty environments, dirt may build up on the heat sink and fan. This may result in a loss of power due to insufficient cooling of the inverter.
Make sure that the ambient air can always flow through the inverter's ventilation slots unimpeded.
Remove any build-up of dirt on the heat sink and the fan.
173
1
Switch off power to the inverter and
wait for the specified time until the ca-
pacitors have discharged and the fan
has shut down.
Turn the DC disconnector to the "Off"
switch position.
2
Loosen the screws on the underside of
the housing cover by rotating them
180° to the left using a screwdriver
(TX20). Then lift the housing cover
away from the inverter at the bottom
and detach from above.
Disposal 174
3
Remove any build-up of dirt on the
heat sink and fan using compressed air,
or a cloth or brush.
NOTE!
Risk due to damage to the fan bearing from improper cleaning. Excessive speed and pressure on the fan bearing can cause damage.
Block the fan and clean it with compressed air.
When using a cloth or brush, clean the fan without applying pressure to the fan.
To start up the inverter again, follow the steps listed above in reverse order.
Waste electrical and electronic equipment must be collected separately and recycled in an environmentally responsible manner in accordance with the EU Directive and national law. Used equipment must be returned to the distributor or through a local, authorised collection and disposal system. Proper disposal of the old device promotes sustainable recycling of material resources. Ignoring this may lead to potential health/environmental impacts.
Packaging materials Collected separately. Check your municipality's regulations. Reduce the volume of the box.
175
Guarantee provisions
Fronius manufacturer's warranty
Detailed, country-specific warranty terms are available on the internet: www.fronius.com/solar/warranty
To obtain the full warranty period for your newly installed Fronius inverter or storage system, please register at: www.solarweb.com.
176
Components for switching to backup power
Components for automatic Full Backup backup power changeover
Device name Fronius Smart Meter 63A-1 Fronius Smart Meter 50kA-3
Fronius Smart Meter TS 100A-1 Fronius Smart Meter TS 5kA-3 Fronius Smart Meter WR
Current transformer
Item number 43,0001,1477
43,0001,1478
43,0001,0045
43,0001,0046
43,0001,3591
Grid and system protection unit (fuse protection: 1-pin, 6 A)Other manufacturers and types are permissible if they are technically and functionally identical to the examples below: - VMD460-NA-D-2 (Bender GmbH & Co. KG) - RE-NA003-M64 (Tele Haase Steuergeräte Ges.m.b.H.)
K1 and K2 - installation contactor with auxiliary contact
Number of pins
1-pin or 2-pin(depending on the cabling variant)
Rated current
depends on house connection
Coil voltage
230 V AC
Rated frequency
50/60 Hz
Coil fuse
6 A
Min. short circuit current
3 kA (make contacts)
Test standard
IEC 60947-4-1
Auxiliary contact
Number of NC contacts
1
Switching voltage
12-230 V @ 50/60 Hz
Min. nominal current
1 A
Min. short circuit current
1 kA
Examples of contactors and relays
ISKRA IK63-40 / Schrack BZ326461
Buffer power supply for Fault Ride Through cabling variant.Other manufacturers and types are permissible if they are technically and functionally identical to the examples below: - BKE JS-20-240/DIN_BUF
177
K1 and K2 - DC installation contactor with auxiliary contact (Fault Ride Through)
Number of pins
1-pin or 2-pin(depending on the cabling variant)
Rated current
depends on house connection
Coil voltage
24 VDC
Min. short circuit current
3 kA (make contacts)
Test standard
IEC 60947-4-1
Auxiliary contact
Number of NC contacts
1
Switching voltage
24 VDC
Min. nominal current
1 A
Min. short circuit current
1 kA
Examples of contactors and relays
Finder 22.64.0.024.4710
K3 - modular relay
Number of changeover contacts
Coil voltage
Test standard
Examples of contactors and relays
2
12 V DC IEC 60947-4-1 Finder 22.23.9.012.4000 / Schrack relay RT424012 (bracket RT17017, relay base RT78725)
K4 and K5 - installation contactor
Number of NC contacts
Coil voltage
Rated frequency
Coil fuse
Min. short circuit current
Test standard
Examples of contactors and relays
2 (25 A) 230 V AC (2P)
50/60 Hz 6 A
3 kA (make contacts) IEC 60947-4-1
ISKRA IKA225-02
Components for manual Full Backup backup power changeover
Device name Fronius Smart Meter 63A-1
Current transformer
Item number 43,0001,1477
178
Device name Fronius Smart Meter TS 100A-1
Current transformer
Item number 43,0001,0045
Q1 manual changeover switch
Number of pins
3-pin or 4-pin(depending on the cabling variant)
Rated current
depends on house connection
Coil voltage
230/400 VAC
Rated frequency
50/60 Hz
Test standard
IEC 60947-4-1
Example
HIM306 / HIM406
Example
KA63B.T903.VE2 / KA40B.T904.VE2.F437
179
Status codes and remedy
Display
Status codes are displayed on the user interface of the inverter in the "System" "Event Log" menu or in the user menu under "Notifications" or in Fronius Solar.web*.
*
with corresponding configuration, see chapter Fronius Solar.web on page
17.
Status Codes
1006 - ArcDetected (operation LED: flashes yellow) Cause: An arc on the PV system was detected. Remedy: No action required. Feed-in mode is started again automatically after
5 minutes.
1030 - WSD Open (operation LED: lights up red)
Cause:
A device connected in the WSD chain has interrupted the signal line (e.g. a surge protective device) or the bypass ex works has been removed and no trigger device has been installed.
Remedy: If the SPD surge protective device is triggered, the inverter must be repaired by an authorised specialist.
OR:
Install the bypass ex works or a trigger device.
OR:
Set the WSD (wired shutdown) switch to position 1 (WSD primary
device).
WARNING!
Danger due to work that has been carried out incorrectly. This can result in serious injury and damage to property.
Installing and connecting a surge protective device (SPD) must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.
Follow the safety rules.
1173 - ArcContinuousFault (operation LED: lights up red)
Cause:
An arc on the PV system was detected and the maximum number of automatic switch-ons within 24 hours was reached.
Remedy: Press and hold the sensor on the inverter for 3 seconds (max. 6 seconds).
OR:
Confirm the status "1173 - ArcContinuousFault" in the "System"
"Event Log" menu area on the user interface of the inverter.
OR:
Confirm the status "1173 - ArcContinuousFault" in the "Notifica-
tions" user menu on the user interface of the inverter.
CAUTION!
Danger from damaged components of the photovoltaic system This can result in severe personal injury/damage to property.
Before the status "1173 - ArcContinuousFault" is confirmed, the entire photovoltaic system in question must be checked for possible damage.
Have damaged components repaired by qualified personnel.
180
1191 - AfciDataTransfer (operation LED: flashes yellow) Cause: An arc on the PV system was detected. Remedy: No action required.
181
Technical data
Fronius Primo GEN24 3.0 / 3.0 Plus
DC input data
MPP voltage range (at rated power)
Max. input voltage at 1000 W/m² / -10°C in an open circuit
Min. input voltage
Feed-in start-up input voltage in grid operation 5)
Max. input current PV 1 PV 2
Max. short circuit current of module array (ISC PV) PV 1 PV 2
Max. total short circuit current of module array (ISC PV1 + ISC PV2 = ISC max)
Max. inverter backfeed current to the array 3) PV 1 PV 2
Number of inputs - PV 1
Number of inputs - PV 2
Maximum capacity of the PV generator against earth
Insulation resistance test limit value between module array and earth (on delivery) 10)
Adjustable range of insulation resistance test between module array and earth 9)
Limit value and tripping time of the sudden residual current monitoring (on delivery)
Limit value and tripping time of the continuous residual current monitoring (on delivery)
Adjustable range of continuous residual current monitoring 9)
Cyclic repetition of the insulation resistance test (on delivery)
Adjustable range for the cyclic repetition of the insulation resistance test
182
190 530 V 600 V
65 V 80 V
22.0 A 12.0 A
36 A 19 A
55 A
36 A 19 A
2 2 600 nF 100 k
10 10,000 k
30 / 300 mA / ms 60 / 150 mA / ms
90 / 40 mA / ms 300 / 300 mA / ms
30 300 mA 24 h -
DC input data, battery Max. voltage Min. voltage Max. current Max. output DC inputs
455 V 150 V
22 A 3000 W
1
AC input/output data Rated power (Pnom) Max. output power Rated apparent power Nominal grid voltage Min. grid voltage
Max. grid voltage
Max. output current Current (inrush) 6) Nominal frequency
Nominal frequency for Full Backup
Initial short circuit alternating current / phase IK Total harmonic distortion Power factor cos phi 2) Max. permitted mains impedance Zmax on PCC 4) Maximum output fault current / duration
3000 W 3000 W 3000 VA 1 ~ NPE 220V / 230V / 240 V 155 V 1) 270 V 1)
19.4 A 20 A / 1.3 ms
50/60 Hz 1) 53/63 Hz 1)
19.4 A
< 2% 0.8 1 (adjustable)
None
29 A / 3 ms
AC output data PV Point / PV Point Comfort Max. output power Rated power Nominal output current Nominal grid voltage Nominal frequency Switching time Power factor cos phi 2)
4133 W (for 5 s) 3000 W 13 A
1 ~ NPE 220 V / 230 V / 240 V 53/63 Hz 1) < 90 s 0 1
AC output data Full Backup Max. output power Rated power Nominal output current
4133 W (for 5 s) 3000 W 13 A
183
AC output data Full Backup Nominal grid voltage
Nominal frequency for Full Backup Switching time Power factor cos phi 2)
1 ~ NPE 220 V 1 ~ NPE 230 V 1 ~ NPE 240 V
53/63 Hz 1)
< 90 s
0 1
General data Maximum efficiency European efficiency (Umpp nom) European efficiency (Umpp max) European efficiency (Umpp min) Self-consumption at night Cooling Protection class Dimensions H x W x D Weight Inverter topology Permitted ambient temperature Permissible humidity EMC emission class (according to IEC 6100062, IEC 6100063) DC/AC overvoltage category (according to IEC 62109-1) Pollution degree Sound pressure Safety class (according to IEC 62103)
97.6% 96.8% 95.9% 95.3% 8.2 W Controlled forced-air ventilation IP 66 530 × 474 × 165 mm 17 kg Non-insulated transformerless -40 °C +60 °C 0 100% (incl. condensation)
B
2 / 3
2 42 dB(A) (ref. 20µPa)
1
Protection devices DC isolation measurement 11) Overload performance DC disconnector RCMU 11) RCMU classification
Active anti-islanding method AFCI
Warning / shutdown at RISO < 100 kOhm
Operating point shift, power limitation
Integrated
Integrated
The software class of the safety platform(s) is specified as a class B control function (single channel with periodic self-test) according to IEC 60730
Annex H.
Frequency conversion method
Integrated
184
Protection devices
AFPE (AFCI) classification (according to IEC63027) 11)
= F-I-AFPE-1-4-1 Full coverage Integrated AFPE
1 monitored string per input port 4 input ports per channel (MPP1: 2,
MPP2: 2) 1 monitored channel
Data communication WLAN SMA-RP connection (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01) Ethernet (LAN) Wired shutdown (WSD)
Modbus RTU SunSpec (2x) Voltage level of digital inputs
Input currents of digital inputs
Total power for digital output (internal supply) Power per digital output (external supply) Datalogger/web server
802.11b/g/n (WPA, WPA2) Frequency: 2.4 GHz
RJ45, 10/100 MBit Max. 28 devices / WSD chain Max. distance between two devices =
100 m RS485 2-wire Low: min. 0 V max. 1.8 V High: min. 4.5 V max. 28.8 V Depending on the input voltage; input resistance = 70 kOhm 6 W at 12 V (USB not connected)
1 A at >12.5 V 24 V (max. 3 A in total) Integrated
Fronius Primo GEN24 3.6 / 3.6 Plus
DC input data
MPP voltage range (at rated power)
Max. input voltage at 1000 W/m² / -10°C in an open circuit
Min. input voltage
Feed-in start-up input voltage in grid operation 5)
Max. input current PV 1 PV 2
Max. short circuit current of module array (ISC PV) PV 1 PV 2
200 530 V 600 V
65 V 80 V
22.0 A 12.0 A
36 A 19 A
185
DC input data
Max. total short circuit current of module array (ISC PV1 + ISC PV2 = ISC max)
Max. inverter backfeed current to the array 3) PV 1 PV 2
Number of inputs - PV 1
Number of inputs - PV 2
Maximum capacity of the PV generator against earth
Insulation resistance test limit value between module array and earth (on delivery) 10)
Adjustable range of insulation resistance test between module array and earth 9)
Limit value and tripping time of the sudden residual current monitoring (on delivery)
Limit value and tripping time of the continuous residual current monitoring (on delivery)
Adjustable range of continuous residual current monitoring 9)
Cyclic repetition of the insulation resistance test (on delivery)
Adjustable range for the cyclic repetition of the insulation resistance test
DC input data, battery
Max. voltage
Min. voltage
Max. current
Max. output
DC inputs
AC input/output data
Rated power (Pnom)
Max. output power
Rated apparent power
Nominal grid voltage
Min. grid voltage
Max. grid voltage
55 A
36 A 19 A
2 2 736 nF
100 k
10 10,000 k
30 / 300 mA / ms 60 / 150 mA / ms
90 / 40 mA / ms 300 / 300 mA / ms
30 300 mA
24 h
-
455 V 150 V
22 A 3680 W
1
3680 W 3680 W 3680 VA 1 ~ NPE 220V / 230V / 240 V 155 V 1) 270 V 1)
186
AC input/output data Max. output current Current (inrush) 6) Nominal frequency
Nominal frequency for Full Backup
Initial short circuit alternating current / phase IK Total harmonic distortion Power factor cos phi 2) Max. permitted mains impedance Zmax on PCC 4) Maximum output fault current / duration
23.7 A 20 A / 1.3 ms
50/60 Hz 1) 53/63 Hz 1)
23.7 A
< 2% 0.8 1 (adjustable)
None
29 A / 3 ms
AC output data PV Point / PV Point Comfort Max. output power Rated power Nominal output current Nominal grid voltage Nominal frequency Switching time Power factor cos phi 2)
4133 W (for 5 s) 3000 W 13 A
1 ~ NPE 220 V / 230 V / 240 V 53/63 Hz 1) < 90 s 0 1
AC output data Full Backup Max. output power Rated power Nominal output current Nominal grid voltage
Nominal frequency for Full Backup Switching time Power factor cos phi 2)
5070 W (for 5 s) 3680 W 16 A
1 ~ NPE 220 V 1 ~ NPE 230 V 1 ~ NPE 240 V
53/63 Hz 1) < 90 s 0 1
General data Maximum efficiency European efficiency (Umpp nom) European efficiency (Umpp max) European efficiency (Umpp min) Self-consumption at night Cooling
97.6% 97.0% 96.3% 95.6% 8.2 W Controlled forced-air ventilation
187
General data Protection class Dimensions H x W x D Weight Inverter topology Permitted ambient temperature Permissible humidity EMC emission class (according to IEC 6100062, IEC 6100063) DC/AC overvoltage category (according to IEC 62109-1) Pollution degree Sound pressure Safety class (according to IEC 62103)
IP 66 530 × 474 × 165 mm
17 kg Non-insulated transformerless
-40 °C +60 °C 0 100% (incl. condensation)
B
2 / 3
2 42 dB(A) (ref. 20µPa)
1
Protection devices DC isolation measurement 11)
Overload performance DC disconnector RCMU 11) RCMU classification
Active anti-islanding method AFCI AFPE (AFCI) classification (according to IEC63027) 11)
Warning / shutdown at RISO < 100 kOhm
Operating point shift, power limitation
Integrated
Integrated
The software class of the safety platform(s) is specified as a class B control function (single channel with periodic self-test) according to IEC 60730
Annex H.
Frequency conversion method
Integrated
= F-I-AFPE-1-4-1 Full coverage Integrated AFPE
1 monitored string per input port 4 input ports per channel (MPP1: 2,
MPP2: 2) 1 monitored channel
Data communication WLAN SMA-RP connection (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01) Ethernet (LAN) Wired shutdown (WSD)
Modbus RTU SunSpec (2x)
802.11b/g/n (WPA, WPA2) Frequency: 2.4 GHz
RJ45, 10/100 MBit Max. 28 devices / WSD chain Max. distance between two devices =
100 m RS485 2-wire
188
Data communication Voltage level of digital inputs
Input currents of digital inputs
Total power for digital output (internal supply) Power per digital output (external supply) Datalogger/web server
Low: min. 0 V max. 1.8 V High: min. 4.5 V max. 28.8 V Depending on the input voltage;
input resistance = 70 kOhm 6 W at 12 V (USB not connected)
1 A at >12.5 V 24V (max. 3 A in total) Integrated
Fronius Primo GEN24 4.0 / 4.0 Plus
DC input data
MPP voltage range (at rated power)
Max. input voltage at 1000 W/m² / -10°C in an open circuit
Min. input voltage
Feed-in start-up input voltage in grid operation 5)
Max. input current PV 1 PV 2
Max. short circuit current of module array (ISC PV) PV 1 PV 2
Max. total short circuit current of module array (ISC PV1 + ISC PV2 = ISC max)
Max. inverter backfeed current to the array 3) PV 1 PV 2
Number of inputs - PV 1
Number of inputs - PV 2
Maximum capacity of the PV generator against earth
Insulation resistance test limit value between module array and earth (on delivery) 10)
Adjustable range of insulation resistance test between module array and earth 9)
210 530 V 600 V
65 V 80 V
22.0 A 12.0 A
36 A 19 A
55 A
36 A 19 A
2 2 800 nF 100 k
10 10,000 k
189
DC input data Limit value and tripping time of the sudden residual current monitoring (on delivery) Limit value and tripping time of the continuous residual current monitoring (on delivery) Adjustable range of continuous residual current monitoring 9) Cyclic repetition of the insulation resistance test (on delivery) Adjustable range for the cyclic repetition of the insulation resistance test
DC input data, battery Max. voltage Min. voltage Max. current Max. output DC inputs
AC input/output data Rated power (Pnom) Max. output power Rated apparent power Nominal grid voltage Min. grid voltage
Max. grid voltage
Max. output current Current (inrush) 6) Nominal frequency
Nominal frequency for Full Backup
Initial short circuit alternating current / phase IK Total harmonic distortion Power factor cos phi 2) Max. permitted mains impedance Zmax on PCC 4) Maximum output fault current / duration
AC output data PV Point / PV Point Comfort Max. output power
30 / 300 mA / ms 60 / 150 mA / ms
90 / 40 mA / ms 300 / 300 mA / ms
30 300 mA
24 h
-
455 V 150 V
22 A 4000 W
1
4000 W 4000 W 4000 VA 1 ~ NPE 220V / 230V / 240 V 155 V 1) 270 V 1)
25.8 A 20 A / 1.3 ms
50/60 Hz 1) 53/63 Hz 1)
25.8 A
< 2% 0.8 1 (adjustable)
None
29 A / 3 ms
4133 W (for 5 s)
190
AC output data PV Point / PV Point Comfort Rated power Nominal output current Nominal grid voltage Nominal frequency Switching time Power factor cos phi 2)
3000 W 13 A
1 ~ NPE 220 V / 230 V / 240 V 53/63 Hz 1) < 90 s 0 1
AC output data Full Backup Max. output power Rated power Nominal output current Nominal grid voltage
Nominal frequency for Full Backup Switching time Power factor cos phi 2)
5510 W (for 5 s) 4000 W 17.4 A
1 ~ NPE 220 V 1 ~ NPE 230 V 1 ~ NPE 240 V
53/63 Hz 1) < 90 s 0 1
General data Maximum efficiency European efficiency (Umpp nom) European efficiency (Umpp max) European efficiency (Umpp min) Self-consumption at night Cooling Protection class Dimensions H x W x D Weight Inverter topology Permitted ambient temperature Permissible humidity EMC emission class (according to IEC 6100062, IEC 6100063) DC/AC overvoltage category (according to IEC 62109-1) Pollution degree Sound pressure Safety class (according to IEC 62103)
97.6% 97.1% 96.5% 95.8% 8.2 W Controlled forced-air ventilation IP 66 530 × 474 × 165 mm 17 kg Non-insulated transformerless -40 °C +60 °C 0 100% (incl. condensation)
B
2 / 3
2 42 dB(A) (ref. 20µPa)
1
191
Protection devices DC isolation measurement 11)
Overload performance DC disconnector RCMU 11) RCMU classification
Active anti-islanding method AFCI AFPE (AFCI) classification (according to IEC63027) 11)
Warning / shutdown at RISO < 100 kOhm
Operating point shift, power limitation
Integrated
Integrated
The software class of the safety platform(s) is specified as a class B control function (single channel with periodic self-test) according to IEC 60730
Annex H.
Frequency conversion method
Integrated
= F-I-AFPE-1-4-1 Full coverage Integrated AFPE
1 monitored string per input port 4 input ports per channel (MPP1: 2,
MPP2: 2) 1 monitored channel
Data communication WLAN SMA-RP connection (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01) Ethernet (LAN) Wired shutdown (WSD)
Modbus RTU SunSpec (2x) Voltage level of digital inputs
Input currents of digital inputs
Total power for digital output (internal supply) Power per digital output (external supply) Datalogger/web server
802.11b/g/n (WPA, WPA2) Frequency: 2.4 GHz
RJ45, 10/100 MBit Max. 28 devices / WSD chain Max. distance between two devices =
100 m RS485 2-wire Low: min. 0 V max. 1.8 V High: min. 4.5 V max. 28.8 V Depending on the input voltage; input resistance = 70 kOhm 6 W at 12 V (USB not connected)
1 A at >12.5 V 24 V (max. 3 A in total) Integrated
Fronius Primo GEN24 4.6 / 4.6 Plus
DC input data
MPP voltage range (at rated power)
230 530 V
192
DC input data
Max. input voltage at 1000 W/m² / -10°C in an open circuit
Min. input voltage
Feed-in start-up input voltage in grid operation 5)
Max. input current PV 1 PV 2
Max. short circuit current of module array (ISC PV) PV 1 PV 2
Max. total short circuit current of module array (ISC PV1 + ISC PV2 = ISC max)
Max. inverter backfeed current to the array 3) PV 1 PV 2
Number of inputs - PV 1
Number of inputs - PV 2
Maximum capacity of the PV generator against earth
Insulation resistance test limit value between module array and earth (on delivery) 10)
Adjustable range of insulation resistance test between module array and earth 9)
Limit value and tripping time of the sudden residual current monitoring (on delivery)
Limit value and tripping time of the continuous residual current monitoring (on delivery)
Adjustable range of continuous residual current monitoring 9)
Cyclic repetition of the insulation resistance test (on delivery)
Adjustable range for the cyclic repetition of the insulation resistance test
DC input data, battery
Max. voltage
Min. voltage
Max. current
600 V
65 V 80 V
22.0 A 12.0 A
36 A 19 A
55 A
36 A 19 A
2 2 920 nF 100 k
10 10,000 k
30 / 300 mA / ms 60 / 150 mA / ms
90 / 40 mA / ms 300 / 300 mA / ms
30 300 mA 24 h -
455 V 150 V
22 A
193
DC input data, battery Max. output DC inputs
4600 W 1
AC input/output data Rated power (Pnom) Max. output power Rated apparent power Nominal grid voltage Min. grid voltage
Max. grid voltage
Max. output current Current (inrush) 6) Nominal frequency
Nominal frequency for Full Backup
Initial short circuit alternating current / phase IK Total harmonic distortion Power factor cos phi 2) Max. permitted mains impedance Zmax on PCC 4) Maximum output fault current / duration
4600 W 4600 W 4600 VA 1 ~ NPE 220V / 230V / 240 V 155 V 1) 270 V 1)
27.5 A 20 A / 1.3 ms
50/60 Hz 1) 53/63 Hz 1)
27.5 A
< 2% 0.8 1 (adjustable)
None
29 A / 3 ms
AC output data PV Point / PV Point Comfort Max. output power Rated power Nominal output current Nominal grid voltage Nominal frequency Switching time Power factor cos phi 2)
4133 W (for 5 s) 3000 W 13 A
1 ~ NPE 220 V / 230 V / 240 V 53/63 Hz 1) < 90 s 0 1
AC output data Full Backup Max. output power Rated power Nominal output current Nominal grid voltage
Nominal frequency for Full Backup
6338 W (for 5 s)
4600 W
20 A
1 ~ NPE 220 V 1 ~ NPE 230 V 1 ~ NPE 240 V
53/63 Hz 1)
194
AC output data Full Backup Switching time Power factor cos phi 2)
< 90 s 0 1
General data Maximum efficiency European efficiency (Umpp nom) European efficiency (Umpp max) European efficiency (Umpp min) Self-consumption at night Cooling Protection class Dimensions H x W x D Weight Inverter topology Permitted ambient temperature Permissible humidity EMC emission class (according to IEC 6100062, IEC 6100063) DC/AC overvoltage category (according to IEC 62109-1) Pollution degree Sound pressure Safety class (according to IEC 62103)
97.6% 97.2% 96.6% 96.2% 8.2 W Controlled forced-air ventilation IP 66 530 × 474 × 165 mm 17 kg Non-insulated transformerless -40 °C +60 °C 0 100% (incl. condensation)
B
2 / 3
2 42 dB(A) (ref. 20µPa)
1
Protection devices DC isolation measurement 11) Overload performance DC disconnector RCMU 11) RCMU classification
Active anti-islanding method AFCI
Warning / shutdown at RISO < 100 kOhm
Operating point shift, power limitation
Integrated
Integrated
The software class of the safety platform(s) is specified as a class B control function (single channel with periodic self-test) according to IEC 60730
Annex H.
Frequency conversion method
Integrated
195
Protection devices
AFPE (AFCI) classification (according to IEC63027) 11)
= F-I-AFPE-1-4-1 Full coverage Integrated AFPE
1 monitored string per input port 4 input ports per channel (MPP1: 2,
MPP2: 2) 1 monitored channel
Data communication WLAN SMA-RP connection (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01) Ethernet (LAN) Wired shutdown (WSD)
Modbus RTU SunSpec (2x) Voltage level of digital inputs
Input currents of digital inputs
Total power for digital output (internal supply) Power per digital output (external supply) Datalogger/web server
802.11b/g/n (WPA, WPA2) Frequency: 2.4 GHz
RJ45, 10/100 MBit Max. 28 devices / WSD chain Max. distance between two devices =
100 m RS485 2-wire Low: min. 0 V max. 1.8 V High: min. 4.5 V max. 28.8 V Depending on the input voltage; input resistance = 70 kOhm 6 W at 12 V (USB not connected)
1 A at >12.5 V 24V (max. 3 A in total) Integrated
Fronius Primo GEN24 5.0 / 5.0 Plus
DC input data
MPP voltage range (at rated power)
Max. input voltage at 1000 W/m² / -10°C in an open circuit
Min. input voltage
Feed-in start-up input voltage in grid operation 5)
Max. input current PV 1 PV 2
Max. short circuit current of module array (ISC PV) PV 1 PV 2
230 530 V 600 V
65 V 80 V
22.0 A 12.0 A
36 A 19 A
196
DC input data
Max. total short circuit current of module array (ISC PV1 + ISC PV2 = ISC max)
Max. inverter backfeed current to the array 3) PV 1 PV 2
Number of inputs - PV 1
Number of inputs - PV 2
Maximum capacity of the PV generator against earth
Insulation resistance test limit value between module array and earth (on delivery) 10)
Adjustable range of insulation resistance test between module array and earth 9)
Limit value and tripping time of the sudden residual current monitoring (on delivery)
Limit value and tripping time of the continuous residual current monitoring (on delivery)
Adjustable range of continuous residual current monitoring 9)
Cyclic repetition of the insulation resistance test (on delivery)
Adjustable range for the cyclic repetition of the insulation resistance test
DC input data, battery
Max. voltage
Min. voltage
Max. current
Max. output
DC inputs
AC input/output data
Rated power (Pnom)
Max. output power
Rated apparent power
Nominal grid voltage
Min. grid voltage
Max. grid voltage
55 A
36 A 19 A
2 2 1000 nF 100 k
10 10,000 k
30 / 300 mA / ms 60 / 150 mA / ms
90 / 40 mA / ms 300 / 300 mA / ms
30 300 mA
24 h -
455 V 150 V
22 A 5000 W
1
5000 W 5000 W 5000 VA 1 ~ NPE 220V / 230V / 240 V 155 V 1) 270 V 1)
197
AC input/output data Max. output current Current (inrush) 6) Nominal frequency
Nominal frequency for Full Backup
Initial short circuit alternating current / phase IK Total harmonic distortion Power factor cos phi 2) Max. permitted mains impedance Zmax on PCC 4) Maximum output fault current / duration
27.5 A 20 A / 1.3 ms
50/60 Hz 1) 53/63 Hz 1)
27.5 A
< 2% 0.8 1 (adjustable)
None
29 A / 3 ms
AC output data PV Point / PV Point Comfort Max. output power Rated power Nominal output current Nominal grid voltage Nominal frequency Switching time Power factor cos phi 2)
4133 W (for 5 s) 3000 W 13 A
1 ~ NPE 220 V / 230 V / 240 V 53/63 Hz 1) < 90 s 0 1
AC output data Full Backup Max. output power Rated power Nominal output current Nominal grid voltage
Nominal frequency for Full Backup Switching time Power factor cos phi 2)
6890 W (for 5 s) 5000 W 21.7 A
1 ~ NPE 220 V 1 ~ NPE 230 V 1 ~ NPE 240 V
53/63 Hz 1) < 90 s 0 1
General data Maximum efficiency European efficiency (Umpp nom) European efficiency (Umpp max) European efficiency (Umpp min) Self-consumption at night Cooling
97.6% 97.2% 96.7% 96.3% 8.2 W Controlled forced-air ventilation
198
General data Protection class Dimensions H x W x D Weight Inverter topology Permitted ambient temperature Permissible humidity EMC emission class (according to IEC 6100062, IEC 6100063) DC/AC overvoltage category (according to IEC 62109-1) Pollution degree Sound pressure Safety class (according to IEC 62103)
IP 66 530 × 474 × 165 mm
17 kg Non-insulated transformerless
-40 °C +60 °C 0 100% (incl. condensation)
B
2 / 3
2 42 dB(A) (ref. 20µPa)
1
Protection devices DC isolation measurement 11)
Overload performance DC disconnector RCMU 11) RCMU classification
Active anti-islanding method AFCI AFPE (AFCI) classification (according to IEC63027) 11)
Warning / shutdown at RISO < 100 kOhm
Operating point shift, power limitation
Integrated
Integrated
The software class of the safety platform(s) is specified as a class B control function (single channel with periodic self-test) according to IEC 60730
Annex H.
Frequency conversion method
Integrated
= F-I-AFPE-1-4-1 Full coverage Integrated AFPE
1 monitored string per input port 4 input ports per channel (MPP1: 2,
MPP2: 2) 1 monitored channel
Data communication WLAN SMA-RP connection (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01) Ethernet (LAN) Wired shutdown (WSD)
Modbus RTU SunSpec (2x)
802.11b/g/n (WPA, WPA2) Frequency: 2.4 GHz
RJ45, 10/100 MBit Max. 28 devices / WSD chain Max. distance between two devices =
100 m RS485 2-wire
199
Data communication Voltage level of digital inputs
Input currents of digital inputs
Total power for digital output (internal supply) Power per digital output (external supply) Datalogger/web server
Low: min. 0 V max. 1.8 V High: min. 4.5 V max. 28.8 V Depending on the input voltage;
input resistance = 70 kOhm 6 W at 12 V (USB not connected)
1 A at >12.5 V 24V (max. 3 A in total) Integrated
Fronius Primo GEN24 6.0 / 6.0 Plus
DC input data
MPP voltage range (at rated power)
Max. input voltage at 1000 W/m² / -10°C in an open circuit
Min. input voltage
Feed-in start-up input voltage in grid operation 5)
Max. input current PV 1 PV 2
Max. short circuit current of module array (ISC PV) PV 1 PV 2
Max. total short circuit current of module array (ISC PV1 + ISC PV2 = ISC max)
Max. inverter backfeed current to the array 3) PV 1 PV 2
Number of inputs - PV 1
Number of inputs - PV 2
Maximum capacity of the PV generator against earth
Insulation resistance test limit value between module array and earth (on delivery) 10)
Adjustable range of insulation resistance test between module array and earth 9)
230 480 V 600 V
65 V 80 V
22.0 A 12.0 A
36 A 19 A
55 A
36 A 19 A
2 2 1200 nF 100 k
10 10,000 k
200
DC input data Limit value and tripping time of the sudden residual current monitoring (on delivery) Limit value and tripping time of the continuous residual current monitoring (on delivery) Adjustable range of continuous residual current monitoring 9) Cyclic repetition of the insulation resistance test (on delivery) Adjustable range for the cyclic repetition of the insulation resistance test
DC input data, battery Max. voltage Min. voltage Max. current Max. output DC inputs
AC input/output data Rated power (Pnom) Max. output power Rated apparent power Nominal grid voltage Min. grid voltage
Max. grid voltage
Max. output current Current (inrush) 6) Nominal frequency
Nominal frequency for Full Backup
Initial short circuit alternating current / phase IK Total harmonic distortion Power factor cos phi 2) Max. permitted mains impedance Zmax on PCC 4) Maximum output fault current / duration
AC output data PV Point / PV Point Comfort Max. output power
30 / 300 mA / ms 60 / 150 mA / ms
90 / 40 mA / ms 300 / 300 mA / ms
30 300 mA
24 h
-
455 V 150 V
22 A 6000 W
1
6000 W 6000 W 6000 VA 1 ~ NPE 220V / 230V / 240 V 155 V 1) 270 V 1)
27.5 A 20 A / 1.3 ms
50/60 Hz 1) 53/63 Hz 1)
27.5 A
< 2% 0.8 1 (adjustable)
None
29 A / 3 ms
4133 W (for 5 s)
201
AC output data PV Point / PV Point Comfort Rated power Nominal output current Nominal grid voltage Nominal frequency Switching time Power factor cos phi 2)
3000 W 13 A
1 ~ NPE 220 V / 230 V / 240 V 53/63 Hz 1) < 90 s 0 1
AC output data Full Backup Max. output power Rated power Nominal output current Nominal grid voltage
Nominal frequency for Full Backup Switching time Power factor cos phi 2)
8268 W (for 5 s) 6000 W 26.1 A
1 ~ NPE 220 V 1 ~ NPE 230 V 1 ~ NPE 240 V
53/63 Hz 1) < 90 s 0 1
General data Maximum efficiency European efficiency (Umpp nom) European efficiency (Umpp max) European efficiency (Umpp min) Self-consumption at night Cooling Protection class Dimensions H x W x D Weight Inverter topology Permitted ambient temperature Permissible humidity EMC emission class (according to IEC 6100062, IEC 6100063) DC/AC overvoltage category (according to IEC 62109-1) Pollution degree Sound pressure Safety class (according to IEC 62103)
97.6% 97.1% 96.7% 96.1% 8.2 W Controlled forced-air ventilation IP 66 530 × 474 × 165 mm 17 kg Non-insulated transformerless -40 °C +60 °C 0 100% (incl. condensation)
B
2 / 3
2 42 dB(A) (ref. 20µPa)
1
202
WLAN
Protection devices DC isolation measurement 11)
Overload performance DC disconnector RCMU 11) RCMU classification
Active anti-islanding method AFCI AFPE (AFCI) classification (according to IEC63027) 11)
Warning / shutdown at RISO < 100 kOhm
Operating point shift, power limitation
Integrated
Integrated
The software class of the safety platform(s) is specified as a class B control function (single channel with periodic self-test) according to IEC 60730
Annex H.
Frequency conversion method
Integrated
= F-I-AFPE-1-4-1 Full coverage Integrated AFPE
1 monitored string per input port 4 input ports per channel (MPP1: 2,
MPP2: 2) 1 monitored channel
Data communication WLAN SMA-RP connection (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01) Ethernet (LAN) Wired shutdown (WSD)
Modbus RTU SunSpec (2x) Voltage level of digital inputs
Input currents of digital inputs
Total power for digital output (internal supply) Power per digital output (external supply) Datalogger/web server
802.11b/g/n (WPA, WPA2) Frequency: 2.4 GHz
RJ45, 10/100 MBit Max. 28 devices / WSD chain Max. distance between two devices =
100 m RS485 2-wire Low: min. 0 V max. 1.8 V High: min. 4.5 V max. 28.8 V Depending on the input voltage; input resistance = 70 kOhm 6 W at 12 V (USB not connected)
1 A at >12.5 V 24V (max. 3 A in total) Integrated
WLAN Frequency range Channels / power used
24122462 MHz Channel: 111 b,g,n HT20
Channel: 39 HT40 <18 dBm
203
WLAN Modulation
802.11b: DSSS (1 Mbps DBPSK, 2 Mbps DQPSK, 5.5/11 Mbps CCK)
802.11g: OFDM (6/9 Mbps BPSK, 12/18 Mbps QPSK, 24/36 Mbps 16-
QAM, 48/54 Mbps 64-QAM) 802.11n: OFDM (6.5 BPSK, QPSK,
16-QAM, 64-QAM)
Technical data of surge protective device DC SPD type 1+2 GEN24
General data
Continuous operating current (Icpv)
Rated discharge current (In) - 15 x 8/20 µs pulses
Lightning surge current (limp) Max. discharge capacity @ 10/350 µs
Protection level (Up) (star-shaped mounting)
Short-circuit strength PV (Iscpv)
Disconnector Thermal disconnector External fuse
Mechanical properties Disconnection indicator Remote communication of the connection interruption Housing material Test standards
< 0.1 mA 20 kA
6.25 kA
4 kV
15 kA
Integrated None
Mechanical indicator (red) Output on the changeover contact
Thermoplastic UL-94-V0 IEC 61643-31 / DIN EN 50539-11 UL1449 ed.4 / VDE 0185-305-3 Bbl.
5
Explanation of footnotes
1) The values stated are defaults; the inverter is configured specifically to suit the requirements of the relevant country.
2) Depending on the country setup or device-specific settings (ind. = inductive; cap. = capacitive).
3) Maximum current from a defective PV module to all other PV modules. From the inverter itself to one PV side of the inverter, it is 0 A.
4) Guaranteed by the electrical configuration of the inverter. 5) For backup power mode (PV Point) without battery, a minimum voltage of
150 V is required. 6) Current peak when switching on the inverter. 7) The sum of the rated power per phase must not exceed the rated power of
the inverter.
204
8) Valid for Fronius Primo GEN24 with battery connection and Fronius Primo GEN24 Plus.
9) Specified values are standard values; depending on the requirement and PV power, these values must be adjusted accordingly.
10) Specified value is a max. value; exceeding the max. value may negatively affect the function.
11) Software class B (single-channel with periodic self-test) per IEC 60730-1 Annex H.
Integrated DC disconnector
General data Product name Rated insulation voltage Rated impulse withstand voltage Suitability for insulation Utilisation category and / or PV utilisation category
Rated short-time withstand current (lcw)
Rated short-circuit making capacity (lcm)
Benedict LS32 E 7905
1000 VDC
8 kV
Yes, DC only
In accordance with IEC/EN 60947-3 utilisation category
DC-PV2
Rated short-time withstand current (lcw): 1000 A
Rated short-circuit making capacity (lcm): 1000 A
Rated operating current and rated breaking capacity
Rated operating voltage (Ue)
Rated operating I(make) / Rated operating I(make) /
current (le)
I(break) current (le)
I(break)
500 VDC
14 A
56 A
36 A 144 A
600 VDC
8 A
32 A
30 A 120 A
700 VDC
3 A
12 A
26 A
88 A
800 VDC
3 A
12 A
17 A
68 A
900 VDC
2 A
8 A
12 A
48 A
1000 VDC
2 A
8 A
6 A
24 A
Number of pins
1
1
2
2
205
206
Circuit diagrams
207
208
Fronius Primo GEN24 and BYD Battery-Box Premium HV
Circuit Diagram
209
Fronius Primo GEN24 with two BYD Battery-Box Premium HV connected in parallel
Circuit Diagram
210
Fronius Primo GEN24 with three BYD BatteryBox Premium HV connected in parallel
Circuit Diagram
211
Fronius Primo GEN24 and LG FLEX
Circuit Diagram
212
Circuit Diagram - PV Point (OP)
Circuit Diagram
213
Circuit Diagram - PV Point (OP) Australia
Circuit Diagram
214
Backup power terminal - PV Point (OP) with battery only for France
Circuit Diagram
215
Backup power terminal - PV Point (OP) manual changeover
Circuit Diagram
216
PV Point Comfort
Circuit Diagram
217
Automatic switch to backup power 1-pin single separation - e.g. Austria
Circuit Diagram
218
Automatic switch to backup power 1-pin single separation - e.g. Australia
Circuit Diagram
219
Automatic switch to backup power 2-pin single separation - e.g. Germany
Circuit Diagram
220
Automatic switch to backup power 2-pin single separation - e.g. France
Circuit Diagram
221
Automatic switch to backup power 2-pin single separation - e.g. UK
Circuit Diagram
222
Automatic switch to backup power 2-pin single separation - e.g. Spain
Circuit Diagram
223
Automatic switch to backup power 2-pin double separation with ext. grid and system protection e.g. Italy
Circuit Diagram
224
Fronius Primo GEN24 with Enwitec Box
Circuit Diagram
225
Manual switch to backup power 1-pin separation, e.g. Australia
Circuit Diagram
226
Manual switch to backup power 2-pin separation, e.g. Germany
Circuit Diagram
227
Surge protective device (SPD)
Circuit Diagram
228
Dimensions of the inverter
229
230
Fronius Primo GEN24 3 - 6 kW
Fronius Primo GEN24 3 - 6 kW
231
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