Solis S6 EO Series Off-grid Inverter User Manual

For S6 EO Series Off-grid Inverter

Company Information

Ginlong Technologies Co., Ltd.

No. 57 Jintong Road, Binhai Industrial Park, Xiangshan, Ningbo, Zhejiang, 315712, P.R.China.

Tel: +86 (0)574 6578 1806

Email: info@ginlong.com

Web: www.solisinverters.com

Please adhere to the actual products in case of any discrepancies in this user manual. If you encounter any problem on the inverter, please find out the inverter S/N and contact us, we will try to respond to your question ASAP.

Smart O&M

In order to improve our products and provide you with higher quality services, this device has a built-in data logging module for collecting relevant information during operation (such as power generation data, fault data).

Commitment:

  1. We will only collect, use and process your device information for the purpose of improving our products and services.
  2. We will take all reasonable and feasible measures to ensure that no irrelevant information is collected and we will protect your device information.
  3. We will not share, transfer or disclose the collected device information with any company, organization or individual.
  4. When we stop operating products or services, we will stop collecting your device information in a timely manner.
  5. If you do not want to provide such information, you can notify our company to turn off this function, which will not affect your normal use of other functions of the product.

1. Introduction

1.1 Product Description

Solis EO series inverter is designed for off-grid systems. This series of inverters is highly flexible and can work with or without the grid to provide power to the load. It has battery connections for low voltage batteries and up to 2 PV string inputs. It is able to charge the batteries through the PV, grid or onsite generator.

This manual covers the EO series inverter model list listed below:

S6-EO1P4K-48-EU, S6-EO1P5K-48-EU

Figure 1.1 Product Description

NO.DescriptionNO.Description
1LCD Display9AC Input
2Status Indicator10Generator output/input signal
3Battery Indicator11RS-485 Communication Port
4Fault Indicator12BMS/NTC Port
5Function Buttons13Parallel Communication Ports
6PV Input14Battery Connections
7GEN Port15COM Port
8AC Output16Circuit Breaker

Table 1.1 Product Description

NOTE: Please refer to the specification of the battery before configuration.

1.2 System Description

Figure 1.2 System Connection Diagram

1.3 Packaging

Please ensure that the following items are included in the packaging with your machine:

Inverter x1, Sheet Copper Terminal x10 (For PV/AC Wiring Connection), Fixing Screws x1 (For Grounding Connection), Expansion Bolt x3 (For Mounting), BMS Communication Line x1, Battery power line x2, Temperature Sensor x1 (Optional), Monitor Stick x1 (Optional), Quick Installation Manual x1.

If anything is missing, please contact your local Solis distributor.

2. Safety & Warning

2.1 Safety

The following types of safety instructions and general information appear in this document as described below:

DANGER: "Danger" indicates a hazardous situation which if not avoided, will result in death or serious injury.

WARNING: "Warning" indicates a hazardous situation which if not avoided, could result in death or serious injury.

CAUTION: "Caution" indicates a hazardous situation which if not avoided, could result in minor or moderate injury.

NOTE: "Note" provides tips that are valuable for the optimal operation of your product.

2.2 General Safety Instructions

WARNING: Only devices in compliance with SELV (EN 69050) may be connected to the RS485 and USB interfaces.

WARNING: Please don't connect PV array positive (+) or negative (-) to ground, it could cause serious damage to the inverter.

WARNING: Electrical installations must be done in accordance with the local and national electrical safety standards.

WARNING: Do not touch any inner live parts until 5 minutes after disconnection from the utility grid and the PV input.

WARNING: To reduce the risk of fire, over-current protective devices (OCPD) are required for circuits connected to the inverter. The DC OCPD shall be installed per local requirements. All photovoltaic source and output circuit conductors shall have isolators that comply with the NEC Article 690, Part II.

CAUTION: Risk of electric shock, do not remove the upper cover (lower cover can be removed for connection). There is no user serviceable parts inside, refer servicing to qualified and accredited service technicians.

CAUTION: The PV array supplies a DC voltage when they are exposed to sunlight.

CAUTION: Risk of electric shock from energy stored in capacitors of the Inverter, do not remove cover for 5 minutes after disconnecting all power sources (service technician only). Warranty may be voided if the cover is removed without authorization.

CAUTION: The surface temperature of the inverter can reach up to 60°C (140 °F). To avoid risk of burns, do not touch the surface of the inverter while it's operating. Inverter must be installed out of the reach of children.

NOTE: PV module used with inverter must have an IEC 61730 Class A rating.

WARNING: Operations below must be accomplished by licensed technician or Solis authorized person.

WARNING: Operator must put on the technicians' gloves during the whole process in case of any electrical hazards.

WARNING: For PV system, between the PV string and PV input of the inverter, it is required to install a DC isolator to meet local installation regulations.

3. Installation

3.1 Select a Location for the Inverter

To select a location for the inverter, the following criteria should be considered:

WARNING: Risk of fire Despite careful construction, electrical devices can cause fires.

Figure 3.1 Inverter Mounting Clearance

NOTE: Nothing should be stored on or placed against the inverter.

3.2 Mounting the Inverter

WARNING: The inverter must be mounted vertically.

Select the mounting height of the inverter and mark the mounting holes. It's recommended to install the inverter tighten by using two M5 screws.

Figure 3.2 Wall Mount Inverter

Fix the two holes on the top of the machine and one hole in the box with screws.

Figure 3.3 Fix inverter on the wall

3.3 PV Cable Installation

Before connecting inverter, please make sure the PV array open circuit voltage is within the limit of the inverter.

Please use approved DC cable for PV system.

Before connection, please make sure the polarity of the output voltage of PV array matches the "DC+"and"DC-"symbols.

  1. Select a suitable DC cable and strip the wires out by 7±0.5mm. Please refer to the table below for specific specifications.

Figure 3.4

Cable typeRangeCross section (mm²) Recommended value
Industry generic PV cable4.0~6.0 (12~10AWG)4.0 (12AWG)
  1. Take the DC terminal out of the accessory bag, turn the screw cap to disassemble it, and take out the waterproof rubber ring.

Figure 3.5

Figure 3.6

Figure 3.7

Figure 3.8

Figure 3.9

Figure 3.10

CAUTION: If DC inputs are accidently reversely connected or inverter is faulty or not working properly, it is NOT allowed to turn off the DC switch. Otherwise it may cause DC arc and damage the inverter or even lead to a fire disaster. The correct actions are: Use a clip-on ammeter to measure the DC string current. If it is above 0.5A, please wait for the solar irradiance reduces until the current decreases to below 0.5A. Only after the current is below 0.5A, you are allowed to turn off the DC switches and disconnect the PV strings. In order to completely eliminate the possibility of failure, please disconnect the PV strings after turning off the DC switch to avoid secondary failures due to continuous PV energy on the next day. Please note that any damages due to wrong operations are not covered in the device warranty.

3.4 AC Cable Installations

There are three AC terminals and the connection steps are showing in following sections. The AC Input and Gen ports are sharing the same type of connector, the connection steps are also the same.

AC InputAC OutputGen
Cable Diameter14-17mm12-14mm14-17mm
Cross Sectional Area10mm²6mm²10mm²
Exposure Length9mm7mm9mm

3.4.1 AC Input Connection and Gen Connection

Step 1: Strip the AC wires for about 9mm.

Figure 3.11

Step 2: Set the parts on the cable.

Figure 3.12

Figure 3.13

Step 4: Push wire connector housing into shell and insert claw and seal part into shell and then tighten the nut with torque 4±0.5N.m.

Figure 3.14

Figure 3.15

Step 5: Mating device and wire connector with a click sound.

Figure 3.16

Step 6: If need to disconnect the connector, please use the special disassembly tool to unmate device and wire connector, then turn the nut in the opposite direction and press the unlocking position with the disassembly tool, hold the cable and pull it out in the direction of the arrow.

Figure 3.17

3.4.2 AC Output Connection

The steps to assemble the AC grid terminal connectors are listed as follows:

a) Disassemble the AC connector. Strip the AC wires about 7mm.

Figure 3.18

b) Push pins into housing and use a slotted screwdriver in this step. Please try to pull out the wire to make sure the it's well connected.

Figure 3.19

c) Insert seal and clamp finger into body, then tighten the nut, torque 2.5+/-0.5N·m.

Figure 3.20

d) Mating plug and socket: Push the locker onto the socket housing completely, then rotate the locker according to the direction instructed by the marks on the locker. (Warning: hold the body)

Figure 3.21

3.5 Grounding

To effectively protect the inverter, a grounding methods must be performed. Connect the external grounding terminal. To connect the grounding terminal on the heat sink, please follow the steps below:

  1. Remove insulation sleeve 10 mm for positive and negative conductors.
  2. Insert the wire into the sleeve and use a suitable crimping tool for crimping.
  3. Connect the grounding cable to the grounding point on the heat sink and tighten the grounding screw. The torque rating is 1.0-1.2Nm.
ItemCable Size (AWG)Cable Size (Cross Section)Torque
PE123.3mm²1.0-1.2Nm

Figure 3.22 Grounding connection

3.6 Battery Terminal Components

Step 1: Take out the 1m battery cable from the package.

Figure 3.23

Step 2: Insert the connector end to the inverter battery port with a click sound.

Figure 3.24

Step 3: If need disassemble the connector, please press the button on the connector and pull out from the inverter battery port.

Figure 3.25

3.7 Battery Communication

The EO Series inverter uses RS485 cable to communicate with BMS/NTC port to communicate with the BMS of Lithium and NTC of Lead-acid battery.

Figure 3.26

NOTE: NTC temperature sensor should be attached to the surface of the lead-acid battery for detecting the temperature in real time.

Procedure for Connecting the BMS Cable or NTC Cable: If it is connected to a lithium battery, please take out the BMS communication cable from the accessory package. Connect one side of the cable to the battery and the other side to the BMS/NTC port; If it is connected to a lead-acid battery, please take out the NTC communication cable from the accessory package. Connect the RJ45 side of the cable to the BMS/NTC port, and put the other side with the ring near the negative pole of the battery.

NOTE: Lead-Acid and other older-technology battery types require experienced and precise design, installation and maintenance to work effectively. For lead-acid battery, battery SOC calculation may not be accurate according to battery inconformity between cells, battery aging or other specifications of lead-acid battery etc.

BMS/NTC PIN Definition Communication interface bewteen inverter and battery is RS485 with a RJ45 connector.

Figure 3.27

3.8 External Communication

RS-485 is one standard communication interface which can transmit the real data from inverter to PC or other monitoring equipments.

Figure 3.28

Procedure for Connecting the RS485 Cable: User can use the RS-485 port for external communication. User should prepare the Comm-cable by themselves according to the pin-definition sheet shown as below. The insert terminal need to use the RJ45 plug. Insert one side of the cable into the RS-485 port of the inverter, and insert another side into PC or other monitioring device.

RS485 PIN Definition Communication interface bewteen inverter and external device is RS485 with a RJ45 connector.

Figure 3.29

3.9 Generator Connection

S6 off-grid storage inverter is designed to operate in pure off grid condition or where the grid is unstable. AC Generator can be connected in the system to work with S6 off-grid storage inverter as an alternative backup source. The AC Generator can be connected in two positions, either on the AC Input port or the GEN port of the inverter.

Option 1: Generator on the AC Input Port AC Generator can be connected on the AC input port of the S6 off-grid storage inverter. There is no need to install extra communication wires, the S6 off-grid storage inverter by design will not export power to the AC input port. In a place where the grid is unstable, external auto transfer switch can be installed to switch between grid connection and generator connection when necessary.

Option 2: Generator on the GEN port S6 off-grid storage inverter is designed with a dedicated generator input port which can actively control the generator operation together with the generator input/output communication signals.

Figure 3.30

Figure 3.31

3.10 AC Coupling Connection

The AC Output port of the S6 off-grid storage inverter is capable of connecting loads as well as connecting PV grid tied inverter. The S6 off-grid storage inverter can dynamically increase the AC frequency in linearly relationship on the AC Output Port when battery is close to full. PV grid tied inverters, which support frequency-power response, can passively respond to the frequency change and adjust their generating power. In this way, S6 off-grid storage inverter can control the PV grid tied inverter's power without a physical communication cable in between. The PV inverter should correctly set the overfrequency derating point to match the S6 off-grid storage inverter's AC coupling setting, otherwise the S6 off-grid storage inverter may not be able to correctly control the power of the PV inverter.

WARNING: To use this function, please contact the manufacturer of the PV grid tied inverter to confirm the capability and configuration steps of the frequency-power response. Then adjust the AC coupling settings of S6 off-grid storage inverter accordingly. Solis is not responsible for any damages due to wrong configuration when using this function.

NOTE: This application is only applicable when AC Input and Gen port are left empty.

Figure 3.32

3.11 Parallel Connection

S6 off-grid storage inverter supports multiple kinds of parallel connection. Customers can flexibly utilize the parallel functions to expand the system capacity.

SystemSupport Parallel PortLimitations
Single Phase System ParallelAC Input Port, AC Output Port, Battery Port, GEN PortMax 6 Units of Inverter can be connected in parallel
Three Phase System ParallelAC Input Port, AC Output Port, Battery Port, GEN PortMax 6 Units of Inverter can be connected in parallel (2 Unit per Phase)

WARNING: All inverters in the parallel system MUST be with the same model/same power rating.

WARNING: When operating in parallel condition, if using the GEN port to connect the generator, all inverters' GEN port MUST be connected in parallel and then connect to a single generator. (The G-DRY/G-FB signal wire needs to be connected to the MASTER inverter of the system). It is not supported to connect multiple individual generators to each inverter's GEN port when the system is running in parallel.

WARNING: When operating in parallel condition, if using the Battery port to connect the battery, all inverters' Battery port MUST be connected in parallel and then connect to a single battery bank (The BMS communication or NTC wire needs to be connected to the MASTER inverter of the system). It is not supported to connect multiple individual battery units to each inverter's battery port when the system is running in parallel.

WARNING: Please carefully size the cable, DC breaker and AC breaker specification according to the actual capacity of the parallel system.

NOTE: The parallel communication cable needs to be connected in daisy chain among all inverters in the parallel system. Two RJ45 parallel ports are provided at the bottom of the inverter for parallel communication.

3.12 External Communication Stick Connection

Inverter provides a Monitoring port which can collect data from inverter and transmit it to monitoring-website via an external monitoring data collector. For details please refer to WiFi Stick Data logger Quick installation guide.

Figure 3.35

Figure 3.36

NOTE: When a single inverter is running, DIP switch 1 and 2 shall be both at the bottom position. When multiple inverters are paralleled, DIP switch: the master inverter need to have 2 DIP switches enabled (Both Pin 1 & Pin2).

3.13 LED Indicates

There are three LED indicators on the inverter which indicate the working status.

LightColorStatusDescription
STATUSGreenFLASHINGThe inverter is in standby (Slow flashing for 3S).
GreenONThe inverter is normal operation. Or The inverter is operating normally.
Green/YellowOFFThe inverter is deenergized.
BATTERYYellow/RedGREEN FLASHINGBattery is charging.
Yellow/RedGREEN CONSTANTBattery is discharging.
Yellow/RedOFFBattery is not installed or in the off position.
ALARMYellow/RedYELLOW CONSTANTBattery failure.
Yellow/RedYELLOW CONSTANTThere is an alarm but system is operational.
Yellow/RedRED CONSTANTThere is an alarm and the system has stopped.
OFFNo Alarm.

Table 3.3 Status Indicator Lights

4. Commissioning

4.1 Preparation of Commissioning

4.2 Commissioning Procedure

If all the items mentioned above meet the requirements, proceed as follows to start up the inverter for the first time.

  1. Switch on the AC-Output and AC-Input.
  2. Refer to "Part 5" to configure the parameters. Ensure to run through the Startup Wizard.
  3. Switch on the DC circuit breaker between inverter and battery.
    • If the battery equipped is Pylon Li-ion Battery, actuate the switch on the battery manually. The relay will make 'clicking' sounds and it will take a short-time to work automatically.
  4. Verify the system is working properly.
  5. Proceed to setup the systems communication and refer to the datalogger manual.
    • All manuals can be found at www.solisinverters.com

5. Operation

5.1 Startup guide

Please follow the steps to complete the initial setup process.

Steps: Start-up Wizard > Language > Time > Connect battery? > Battery Type > Connect generator? > Back up setting > Setting successfully

Figure 5.1 Operation Overview

5.2 Main Menu

There are four submenu in the Main Menu (see Figure 5.1):

  1. Information
  2. Settings
  3. Advanced Info.
  4. Advanced Settings

5.3 Information

In the information section, operating data and information data can be viewed. Sub-sections include:

  1. General Information
  2. System Information
  3. Energy Records
  4. BMS information

5.3.1 General Information

The example displays are shown in the following figures. The user can view it by pressing the up and down keys. Values are for reference only.

DisplayDescription
Inverter SN: 000000000000000Shows the inverter serial number.
Model: S6-E01P5K-48-EUShows the model of the device.
SoftVer.: 040000Shows the DSP and ARM version of the inverter.
HMI SoftwareARM version of the inverter.

Figure 5.2 General Information

5.3.2 System Information

The example displays are shown in the following figures. The user can view it by pressing the up and down keys. Values are for reference only.

DisplayDescription
V DC: 000.0VShows the voltage on DC side.
I DC: 000.0AShows the current on DC side.
V AC: 000.0VShows the voltage on AC side.
I AC: 000.0AShows the current on AC side.
Grid Frequency: 00.00HzShows the grid frequency value.
Battery V: 000.0VShows the battery voltage.
Battery I: 000.0AShows the battery current.
Backup V: 000.0VShows the voltage on backup.
Backup P: 00.0kWShows the power on backup.
Charge P: 00.0kWShows the charging power.
DisCharge P: 00.0kWShows the discharging power.
Gen P:Show the power of generator

Figure 5.3 System Information

5.3.3 Energy Records

Sub-sections of the Yield information section include:

  1. Battery Yield
  2. Grid Yield
  3. Load Yield

The example displays are shown in the following figures. Values are for reference only.

DisplayDescription
BattChgE Total: 0000000kWhShows the total battery charged energy.
BattChgE Today: 000.0kWhShows today's battery charged energy.
BattChgE Lastday: 000.0kWhShows yesterday's battery charged energy.
BattDisChgE Total: 0000000kWhShows the total battery discharged energy.
BattDisChgE Today: 0000000kWhShows today's battery discharged energy.
BattDisChgE Lastday: 0000000kWhShows yesterday's battery discharged energy.

Figure 5.4 Battery Yield

DisplayDescription
GridGetE Total: 0000000kWhShows the total energy received from the grid.
GridGetE Today: 000.0kWhShows today's energy received from the grid.
GridGetE Lastday: 000.0kWhShows yesterday's energy received from the grid.

Figure 5.5 Grid Yield

5.3.4 BMS Information

The example displays are shown in the following figures. The user can view it by pressing the up and down keys. Values are for reference only.

DisplayDescription
Battery V: 00.00V Battery I: +00.00ABattery V: Shows battery voltage (From BMS). Battery I: Shows battery current (From BMS).
ChargeLmt: 000.0A DischargLmt: 000.0A ChargeVLmt: 000.0A DischargVLmt: 000.0AChargeLmt: Shows battery charge limit(Current). DischargelLmt: Shows battery discharge limit(Current). ChargeVLmt: Shows battery charge limit(Voltage). DischargVLmt: Shows battery discharge limit(Voltage).
SOC Value: 000% SOH Value: 000%SOC value: Shows battery state of charge. SOH value: Shows battery state of health..
BMS Status: CAN FailShows that Battery BMS communication status.
BMS Version: 0.0Shows that Battery BMS version.

Figure 5.9 BMS Information

BMS ONLY support CAN communication not RS485, and all the data will display "0" when the battery has been selected as Lead-acid battery which is monitored by NTC in CAN/NTC port.

5.4 Settings

The following submenus are displayed when the Settings menu is selected:

  1. Set Time/Date
  2. Set Address
  3. Set Mute
  4. Mode Settings

5.4.1 Set Time/Date

This function allows time and date setting. When this function is selected, the LCD will display a screen as shown in Figure 5.10.

Figure 5.10 Set Time

5.4.2 Set Address

This function is used to set inverter address for data logger connection/modbus communication/parallel connection.

Figure 5.11 Set Address

5.4.3 Set Mute

This function allows you to turn on/off the keypad tone and buzzer sound. Select YES to disable the sound and select NO to enable the sound. Default is "YES".

Figure 5.12 Set Mute

5.4.4 Mode Settings

This section describes the working logic of each work mode of the inverter.

DisplayDescription
Work Mode: Self UseSelf-Use Mode stores the excess PV power into the battery. If the battery is charged, or there is no battery, the excess PV power will be exported (sold) back to the utility company. If the system is set to not export any power, then the inverter will curtail the PV power (derate the inverter output power).
Self use Switch: Enable/DisableThe switch is to enable/disable the self-use mode.
Time of Use Switch: Enable/DisableThe switch is to enable/disable the Time of use setting to allow user to set a customized charging/discharging pattern.
Time of Use chg currTo Set the Charge Current for battery in the state of time of use.
Time of Use Disch CurrTo Set the Discharge Current for battery in the state of time of use.
Chg Tim Slot 1-6: Start/stopTo Set the customized charging/discharging time period. Inverter will follow self-use logic during undefined time period. These settings are only effective when Time of Use Switch is enabled.
Dischg Tim Slot 1-6: Start/stopTo Set the customized charging/discharging time period. Inverter will follow self-use logic during undefined time period. These settings are only effective when Time of Use Switch is enabled.
AllowGridCharging: Enable/DisableTo Set if the system is allowed to use grid power to charge the battery.
BatReserve Switch: Enable/DisableTo Set if the system needs to reserve a certain SOC of battery during normal operation and only to be used when grid is lost to support the load for a longer time.
Reserved SOC SetReserved SOC. Only effective when Battery Reserve Switch is enabled.
Grid Charge Power LimitThe max power limit from grid can be used to reserve the battery SOC level. Only effective when Battery Reserve Switch is enabled.

Figure 5.13 Work Mode

DisplayDescription
Work Mode: Off-GridOff-Grid Mode is only to be used by systems that are not electrically connected to the grid at all.
OffGrid Switch: Enable/DisableThe switch is to enable/disable the off grid mode.
Offgrid overdischarge SOCTo set the overdischarge SOC of the battery under off grid condition.

Figure 5.14 Work Mode

5.5 Advanced Information

NOTE: This area is for fully qualified and accredited technicians only.

Enter the password 0010 to access to the following sections.

  1. Alarm Message
  2. Warning Message
  3. Running Status
  4. Communication data
  5. Yield Profile

Figure 5.15 Enter Password

The screen can be scrolled by pressing the UP/DOWN keys. Pressing the ENTER key gives access to a submenu. Press the ESC key to return to the Main Menu.

5.5.1 Alarm Message

The display shows the 500 latest alarm messages. Screens can be scrolled by pressing the UP/DOWN keys.

Figure 5.16 Alarm Message

Press the ESC key to return to the previous menu. Press the ENTER key to return to the next menu. The example displays are shown in the following figures. Values are for reference only.

5.5.2 Warning Message

The display shows the warning messages appeared on screen, can store in total 500pcs. Press the ESC key to return to the previous menu.

Figure 5.17 Warning Message

5.5.3 Running Status

This section is for maintenance personnel to view the running information (Values are for reference only).

Figure 5.18 Running Status

DisplayDescription
DC Bus Voltage: 0.0VShows DC bus voltage.
Power Factor: +0.000Shows power factor of the inverter.
Power Limit%: 000%Shows the power output percentage of the inverter.
Inverter Temp: +0.0degCShows heat sink temperature of the inverter.
Grid Standard:Shows grid standard.
Flash State:Shows the data migration time.

Figure 5.19 General Status

NOTE: The advanced status is reserved for Solis technicians.

DisplayDescription
Ground Voltage: 000.0VShows the voltage to the ground.
Relay-Fault Func.: RUNShows the status of the relay.
GRID-INTF.02 Func.: RUNShows the interference status from the grid.

Figure 5.20 Advanced Status

5.5.4 Communication data

This section shows the communication data between HMI and DSP. For Solis engineers ONLY.

Figure 5.21 Communication Data

5.5.5 Yield Profile

5.5.5.1 Energy Battery

Shows the battery charge & discharge energy.

DisplayDescription
Battery ChargeShows the battery charge energy.
Battery DischargeShows the battery discharge energy.

Figure 5.22 Battery Charge

5.5.5.2 Grid Energy

Energy received from the grid. or Energy from the grid.

DisplayDescription
Energy ReceivedShows the energy received from the grid.

Figure 5.23 Energy Received from Grid

5.5.5.3 Energy Backup

Energy provided from backup port.

DisplayDescription
Daily EnergyShows the daily energy.
Monthly EnergyShows the monthly energy.
Yearly EnergyShows the yearly energy.

Figure 5.24 Energy Backup

5.6 Advanced Settings

NOTE: This area is for fully qualified and accredited technicians only.

Enter the password 0010 to access to the following sections.

  1. Backup Settings
  2. Feed Grid Setting
  3. Battery Settings
  4. Special Settings
  5. Parallel Settings
  6. Generator Settings
  7. AC Coupling Settings
  8. Password Settings

Figure 5.25 Enter Password

The screen can be scrolled by pressing the UP/DOWN keys. Pressing the ENTER key gives access to a submenu. Press the ESC key to return to the Main Menu.

5.6.1 Backup Settings

DisplayDescription
Backup ON/OFFWhen you select ON, AC output port is enabled. When you select OFF, AC output port is disabled.
Backup VoltageShows the backup voltage.
Backup FrequencyShows the backup frequency.
Volt DroopVoltage droop function when overload on backup port.
Min. Droop VMin allowed voltage for voltage droop function.

Figure 5.26 Backup Settings

5.6.2 Feed Grid Setting

DisplayDescription
Allow Feed in Grid: Enable/DisableWhen you turn on the enable switch, excess energy is fed into the grid. When you turn off the enable switch, no energy is fed into the grid.

Figure 5.27 For Feed Grid Setting

NOTE: The Feed Grid Setting enable switch can be turned on only when the utility grid allows the inverter to export power to the grid.

5.6.3 Battery Settings

The section has 2 parts:

  1. Battery Select
  2. Advanced Battery Settings

5.6.3.1 Battery Select

The battery selection includes the following 5 options:

  1. Lithium battery
  2. 48V Lithium battery (without comm)
  3. 52.1V Lithium battery (without comm)
  4. Lead Acid
  5. No Battery

5.6.3.2 Advanced Battery Settings

The following is the setting of battery parameters. For different lithium batteries, the inverter has been set with the optimal battery configuration, and it is recommended that customers do not modify it without authorization. For lead-acid batteries, the installer should set it according to the battery type. For lithium batteries, these are the following settings:

DisplayDescription
Max Charge CurrTo set the max allowed charge current.
Max Dischar CurrTo set the max allowed discharge current.
Battery WakeupTo set the the type of battery wake.

Figure 5.29 For Lithium Batteries

There are two types of battery wake-up: Wake up Manually and Wack Up Automatic

DisplayDescription
Manual Wakeup funcion. Switch: ON/OFFInverter will charge the battery port at the wakeup voltage level and maintain for a certain time period in order to wakeup battery in sleep mode.
Voltage SetWake up voltage setting.
Time SetWake up time setting.

Figure 5.30 Wake up Manually

DisplayDescription
Automatic battery wake up function. Inverter will initiate the battery wake up function when it is powered up.Automatic battery wake up function. Inverter will initiate the battery wake up function when it is powered up.
Wake up time setting.Wake up time setting.

Figure 5.31 Wack Up Automatic

DisplayDescription
Overdischar SOCWhen battery reached overdischarge SOC, inverter will stop discharging the battery.
Force SOC SetDue to selfdischarging, battery SOC may drop to lower than overdischarge SOC. When reached forcecharge SOC, inverter will charge the battery automatically to avoid battery entering sleep mode.

Figure 5.28 For Lithium Batteries

DisplayDescription
Battery Healing switch: ON/OFFTo enable/disable the battery healing function. During low PV period, battery SOC may be kept low SOC for a long time. Battery healing function will charge the battery until the target SOC.
Battery Healing SOCTarget SOC for battery healing function, the value ranges from 80 to 100%. The default value is 100%.

Figure 5.32 Battery Healing

DisplayDescription
Force Power SetMax grid power allowed for battery forcecharging.
ECO FunctionTo enable/disable the ECO function. When at night and battery SOC recahed overdischarge SOC, inverter will shutdown the battery circuit to avoid battery power consumption.
Quick ChargeEnable the quick charge function, inverter will charge the battery at the max capability.

Figure 5.33 For Lithium Batteries

For lead acid batteries, these are the following settings:

DisplayDescription
Battery CapacityBattery capacity in Ah.
Bulk Chg. VoltVoltage setting for Constant voltage charging stage. Also called absorption voltage.
Overdischar VoltWhen battery reached overdischarge voltage, inverter will stop discharging the battery.

Figure 5.34 For Lead Acid Batteries

DisplayDescription
Force Volt SetDue to selfdischarging, battery voltage may drop to lower than overdischarge voltage. When reached forcecharge voltage, inverter will charge the battery automatically to avoid battery entering sleep mode.
Float VoltVoltage setting for floating charging stage.
Batt equalizationThis function is designed to realize the equalizing charging stage for the batteries.
Equalized time.Equalizing Charging Time Period.
Equalized VoltEqualizing Charging Voltage.
Equalized intervalInterval between equalizing charging.
Temp compemVoltage-Temperature compensation coefficient.

Figure 5.35 For Lead Acid Batteries

5.6.4 Special Settings

NOTE: These functions are for maintenance personnel only. Misuse of these functions could lead to equipment damage, inverter function or reduced inverter production.

The section has 8 parts:

  1. Power Switch
  2. Batt Line ZO
  3. MPPT Multi-peak Scan
  4. RisoLim
  5. Daily PV-ISO-dec
  6. Clear Energy
  7. Restore Settings
  8. AFCI Setting

5.6.4.1 Power Switch

When choose On. Inverter will generate power (default) When choose Off, inverter stops generating.

DisplayDescription
Power Switch: ON

Figure 5.36 Power Switch Setting

5.6.4.2 Batt Line ZO

Batt Line ZO is the battery line impedance setting. The purpose is to compensate the resistance loss of the battery line. The default value is 10mΩ, 0-99mΩ can be set.

DisplayDescription
Batt Line ZO: 10mΩ

Figure 5.37 Battery Line ZO Setting

5.6.4.3 MPPT Multi-peak Scan

Enable periodic MPPT scanning to track the global max power point of the system.

DisplayDescription
Scan Switch: Enable/DisableEnable/Disable the scanning.
Scan Interval: 1800SSet the scan interval.

Figure 5.38 MPPT Multi-peak Scan Setting

5.6.4.4 RisoLim

Set the PV insulation protection limit.

DisplayDescription
RisoLimSet the PV insulation protection limit.

Figure 5.39 RisoLim Setting

5.6.4.5 Daily PV-ISO-dec

Enable/Disable the Daily PV-ISO Detection.

DisplayDescription
Daily PV-ISO-dec: Enable/DisableEnable/Disable the Daily PV-ISO Detection.

Figure 5.40 Daily PV-ISO-dec Setting

5.6.4.6 Clear Energy

Clear Energy will reset the historical yield of the inverter.

NOTE: This function is only for maintenance personnel.

5.6.4.7 Restore Settings

This section allows you to reset all the settings and bring the settings back to default values.

Figure 5.41 Restore Settings

5.6.4.8 AFCI Protect

DisplayDescription
AFCI Protect:Enable/Disable the Arc fault detection function.
Clear AFCI Fault:UL1699B Arc Fault Alarm Clear.

Figure 5.42 AFCI Protect Setting

5.6.5 Parallel Settings

DisplayDescription
Parallel Mode: Single/ParallelTo set if the inverter is running in single unit condition or parallel condition.
Physical Address IDTo set the physical address ID for parallel operation.
Set Master/Slave: Slave/MasterTo set if the inverter is a master unit or slave unit in parallel operation.
Connected Phase: None/Single Phase/ Phase A(Three phase)/ Phase B(Three phase)/ Phase C(Three phase)To set which phase the inverter is connected to.

Figure 5.43 Parallel Settings

5.6.6 Generator Settings

DisplayDescription
With Gen: Enable/DisableTo set if the system is connected with generator or not.
Gen Power Set: Gen Rated P/ Gen Max. Charge PTo set the generator rated output power.
Gen Position: Gen port/Grid portTo set position where the generator is connected.
Start-Stop SOC/VTo set the battery SOC/voltage at which the generator will step in or stop operation.
Gen signal: Enable/DisableTo set if the generator signal is available.
Gen Force: 0/1To force start up the generator.
Gen Stop: 0/1To force stop the generator.

Figure 5.44 Generator Settings

5.6.7 AC Coupling Settings

DisplayDescription
Switch: Enable/DisableTo enable/disable the AC coupling function to use frequency adjustment to control the PV inverter generation.
Position: Gen/Back UpTo set the position where the PV inverter is connected.
ON_SOCWhen the battery SOC drops to this setting, the PV inverter starts to work.
ON_Bat_VoltWhen the battery Volt drops to this setting, the PV inverter starts to work.
Start FrequencyWhen the battery SOC reaches ON-SOC, the inverter will first control the frequency to the start frequency, corresponding to the starting point of the inverter's overfrequency load reduction.
OFF_SOCTo set the AC coupling stop SOC at which the frequency will reach AC coupling Max. Fre.
OFF_Bat_VoltTo set the AC coupling stop Voltage at which the frequency will reach AC coupling Max.Fre.
Max.freThe max frequency allowed in the system for controlling PV Inverter generation.

Figure 5.45 AC Coupling Settings

5.6.8 Password Settings

Figure 5.46 Password Settings

6. Maintenance

Solis EO series inverter do not require any regular maintenance. However, cleaning the heatsink will help the inverter dissipate heat and increase the lifespan. The dirt on the inverter can be cleaned with a soft brush.

CAUTION: Do not touch the surface when the inverter is operating. Some parts may be hot and cause burns.

The LCD and the LED status indicator lights can be cleaned with cloth.

NOTE: Never use any solvents, abrasives or corrosive materials to clean the inverter.

7. Troubleshooting

The inverter has been designed in accordance with international interconnection standards for safety and electromagnetic compatibility requirements. Before delivering to the customer the inverter has been subjected to several test to ensure optimal operation and reliability.

In case of a failure the LCD screen will display an alarm message. The alarm descriptions and their corresponding alarm messages are listed in Table 7.1: When a fault occurs, the "Fault" state will be shown on the main screen. Follow the steps below to check the fault status.

Steps: Enter → Down → Advanced Information→ Enter Password → Enter → Down →Warning Message.

Figure 7.1 Advanced Information

Figure 7.2 Enter Password

Press DOWN to select Warning Message, the press ENTER.

Figure 7.3 Warning Messages

Alarm MessageFailure descriptionSolution
GAB Over Volt GBC Over Volt G CA Over Volt GAB Over Volt2 GBC Over Volt2 GCA Over Volt2 GAB Trans Ov V G BC Trans Ov V G AB 10min Ov V G BC 10min Ov V G CA 10min Ov V Grid Trans Ov VGird Overvoltage1. Resistant of AC cable is too high, Change AC cable for larger size. 2. Adjust the protection limit if it's allowed by electrical company.
GAB Under Volt G BC Under Volt G CA Under Volt GAB Under Volt2 G BC Under Volt2 G CA Under Volt2Grid Undervoltage1. Adjust the protection limit In user define setting if it's allowed by electrical company.
Grid Over Freq. Grid Over Freq.2Grid Overfrequency1. Adjust the protection limit In user define setting if it's allowed by electrical company.
Grid Under Freq. Grid Under Fre.2Grid Underfrequency1. Adjust the protection limit In user define setting if it's allowed by electrical company.
Grid Over Imp.Grid Impedance is too large1. Adjust the protection limit In user define setting if it's allowed by electrical company.
No GridNO Grid Voltage1. Check connection and grid switch. 2. Check grid voltage on the inverter terminals.
Grid UnbalanceGrid voltage is unbalanced1. Restart inverter or contact installers.
Grid Freq. SparkGrid frequency is sparking1. Check connection of AC cable is normal. 2. Confirm connnection of AC cable is normal. 3. Restart System and ensure whether the fault is existing.
Grid A Over Curr Grid B Over Curr Grid C Over Curr Phase Over CurrGrid overcurrent1. Restart inverter. 2. Change power board.
Ig Tracking ErrGrid current tracking fail1. Restart inverter or contact installers.
Pv1 Over Volt Pv2 Over Volt Pv3 Over Volt Pv4 Over VoltDC Overvoltage1. Reduce the module number in series.
Bus Under VoltDC Bus is undervolgage1. Check inductor connection of inverter. 2. Check driver connection.
Vbus Unbalance2DC Bus is unbalanced voltage1. Restart System and ensure whether the fault is existing.
Pv1 Over Curr Pv2 Over CurrPv1 overcurrent Pv2 overcurrent1. Restart inverter. 2. Identify the fault and remove the strings from fault MPPT. 3. Change power board.
PV Input DisturbDC input disturbs1. Restart inverter. 2. Change power board.
PV Connect ErrDC polarity reverse fault1. Check whether the polarity of PV cable has reversed connection.
PV Mid IsoPV midpoint grounding fault1. Check whether PV strings have trouble in insulation.
Pv1 Under Volt Pv2 Under VoltPv1 undervoltage Pv2 undercurrent1. Check whether the DC cable is damaged. 2. Restart system and ensure whether the fault is existing.
Vbus Sample ErrBus voltage sampling fault1. Check whether the DC cable is damaged. 2. restart system and ensure whether the fault is existing.
Boost Over CurrBoost overcurrent1. Restart System and ensure whether the fault is existing.
Grid DisturbGird disturbing1. Restart inverter. 2. Change power board.
Dsp Init ErrDSP initializing protection1. Restart inverter or contact installers.
Module Over Temp System Over TempOver temperature protection1. Check whether the environment around inverter is poor heat dissipation. 2. Confirm whether inverter installation is satisfied with requirements.
PV Iso ProPV isolation protection1. Remove all DC inputs then restart and reconnect to inverter one by one. 2. Identify the faulty string and check the string isolation.
Ig Leak Pro1 Ig Leak Pro2 Ig Leak Pro3 Ig Leak Pro4Leakage current protection1. Check AC and DC connection. 2. Check the connections inside the inverter.
Input Relay ErrRelay fault1. Restart inverter or contact installers.
Dsp B FaultCommunication fault betweent main DSP and slave DSP1. Restart inverter or contact installers.
Ig DC ErrDC component fault1. Restart inverter or contact installers.
Alarm MessageFailure descriptionSolution
12V Power Err12V power undervoltage1. Restart System and ensure whether the fault is existing.
Leak Sensor ErrLeakage self-detection fault1. Restart System and ensure whether the fault is existing.
Dsp SelfCk ErrAbnormal self-detection of DSP1. Check the environment temperature around inverter. 2. Restart System and ensure whether the fault is existing.
Under TempUndertemperature protection1. Check the environment temperature around inverter. 2. Restart System and ensure whether the fault is existing.
AFCI Check ErrArc self-detection fault1. Check whether there is arc in PV connection and restart inverter.
AFCI ErrArc protection1. Restart inverter or contact installers.
Dsp Ram ErrAbnormal SRAM of DSP board1. Restart inverter or contact installers.
Dsp Flash ErrAbnormal FLASH of DSP board1. Restart inverter or contact installers.
Dsp PC ErrAbnormal PC pointer of DSP board1. Restart inverter or contact installers.
Dsp Reg ErrAbnormal key register of DSP1. Restart inverter or contact installers.
Grid Disturb2Grid disturbing 021. Restart inverter. 2. Change power board.
Output Short CircuitOutput Short Circuit1. Restart inverter or contact installers.
Grid ResonanceGrid resonance1. Restart inverter. 2. Change power board.
Trans Ov-lgTransient overcurrent of AC side1. Restart inverter or contact installers.
Hw Ov-VbattBattery overvoltage and firmware fault1. Restart inverter. 2. Return to factory for repairing.
LLC Over CurrLLC firmware overcurrent1. Restart inverter. 2. Return to factory for repairing.
Batt Over VoltBattery overvoltage detection1. Check whether battery breaker has tripped. 2. Check whether battery is damaged. 3. Check whether battery parameter settings are reasonable.
Batt Under VoltBattery undervoltage detection1. Check whether battery breaker has tripped. 2. Check whether battery is damaged. 3. Check whether battery parameter settings are reasonable.
No BatteryBattery module is not connected1. Check whether the power line of battery is connected correctly. 2. Check whether the output voltage of battery is correct.
Bypass Over VoltBypass overvoltage fault1. Check whether Backup port wire is normal. 2. Restart system and confirm whether the fault is existing.
Bypass Over CurrBypass overcurrent fault1. Restart inverter or contact installers.
Soft Start ErrSoft start failure1. Restart inverter. 2. Return to factory for repairing.
Nbus Earthing ErrImpedance of N-Ground fault1. Check whether the Grounding line is connected correctly.
Pbus Earthing ErrImpedance of L-Ground fault1. Check whether the Grounding line is connected correctly.
Eeprom Init ErrEeprom initializing fault1. Restart inverter or contact installers.
BMS Over VoltBattery overvoltage of BMS1. Restart inverter or contact installers.
BMS Under VoltBattery undervoltage of BMS1. Restart inverter or contact installers.
BMS Over TempBattery overtemperature of BMS1. Restart inverter or contact installers.
BMS Under TempBattery undertemperature of BMS1. Restart inverter or contact installers.
BMS Dischg. Ov_CDischarge overcurrent of BMS1. Start the battery and contact battery manufacture for handling if the fault still exists.
BMS Chg. Ov_CCharge overcurrent of BMS1. Start the battery and contact battery manufacture for handling if the fault still exists.
BMS InternalExternal fault of BMS1. Start the battery and contact battery manufacture for handling if the fault still exists.
BMS ImbalanceBattery unbalance of BMS1. Confirm whether connection of meter or CT is correct.
Fail safeCT or Meter failure1. Confirm whether connection of meter or CT is correct.
Meter Comm FailMeter communication fault1. Check whether the communication cable of meter is damaged. 2. Confirm whether DRM cable connection is reliable. 3. Check whether meter is damaged.
Can Comm FailBattery communication fault1. Check whether the communication cable of meter is damaged.
Alarm MessageFailure descriptionSolution
Dsp Comm FailDSP communication fault1. Restart DSP to ensure whether the fault is existing.
BMS AlarmAlarm fault of BMS1. Restart the Battery to ensure whether the fault is existing.
Batt Name ErrUncorrespondence of battery select1. Confirm whether the selected battery brand in inverter is consistent with the actual battery.
Heatsink Ntc ErrExternal temperature sensor failure1. Check whether temperature sensor has been installed in the Lead-acid battery. 2. Check whether the NTC cable is connected to the inverter correctly. 3. Restart system and confirm whether the fault still exists.
Buck Boost Ov_CBuckboost overcurrent1. Restart system and confirm whether the fault still exists.
AC ReverseAC connected reversely1. Check the cable polarity of AC side.
Lead-acid batt UTPUndertemperature of lead-acid battery1. Check whether the environment temperature of Lead-acid is in the normal range.
Lead-acid batt OTPOvertemperature of lead-acid battery1. Check whether the environment temperature of Lead-acid is in the normal range.

Table 7.1 Fault Message and Description

NOTE: If the inverter displays any alarm message as listed in Table 7.1; please turn off the inverter and wait for 5 minutes before restarting it. If the failure persists, please contact your local distributor or the service center.

Please keep ready with you the following information before contacting us.

  1. Serial number of Solis Inverter;
  2. The distributor/dealer of Solis Inverter (if available);
  3. Installation date.
  4. The description of problem (i.e. the alarm message displayed on the LCD and the status of the LED status indicator lights. Other readings obtained from the Information submenu (refer to Section 3.10) will also be helpful.);
  5. The PV array configuration (e.g. number of panels, capacity of panels, number of strings, etc.);
  6. Your contact details.

8. Specifications

Solar Charger

ModelS6-EO1P4K-48-EU
Recommended max. PV power5.5kW
Max. input voltage500V
Start-up voltage90V
MPPT voltage range90-430V
Full load MPPT voltage range171-430V
Max. input current16A/16A
Max. short circuit current40A
Max. Solar Charge Current100A
MPPT number / Max. input strings number1/2

Battery

Battery TypeLi-ion/Lead-acid
Rated battery voltage48V
Max. charge / discharge power5000W/5000W
Max. charge / discharge current100A
CommunicationCAN/RS485

Inverter Output

Rated output power4kVA/4kW
Operation phase1/N/PE
Rated output voltage230V±1%
Rated grid frequency50Hz/60Hz±0.1%
Surge Capacity8kVA
Max. Output Current20A
Output Voltage WaveformPure sine wave
Transfer Time10ms typical, 20ms Max
THDv (@linear load)<3%
Peak Efficiency(PV-AC)96.6%

AC Charger

ModelS6-EO1P4K-48-EU
Rated Input Voltage230V
Selectable Voltage Range90-280V
AC Frequnence Range50Hz/60Hz(Auto sensing)
Max. AC Charge Current60A

Generator

Rated input power5kW
Rated input current80A

Protection

Output Over Voltage ProtectionYes
Outout Over Current ProtectionYes
Short Circuit ProtectionYes
Surge ProtectionYes
Temperature Compensation ProtectionYes
Integrated AFCI (DC arc-fault circuit protection)Yes

Gerneral Data

Dimension (W*H*D)335*450*160mm
Net Weight14kg
Relative Humidity5% to 95% (Non-condensing)
Operation Temperature Range-10°C-60°C
Storage Temperature Range-25°C-60°C
Ingress ProtectionIP21
Max. Operation Altitude2000m
Parallel capability6 units
Safety/EMC standardIEC 62109, IEC 61000, 55011

Features

DC ConnectionTerminal Connectors
AC ConnectionTerminal Connectors
DisplayLCD
Communication InterfaceCAN, BMS, RS485, Dry-contact, Bluetooth, Optional: Wifi

Solar Charger

ModelS6-EO1P5K-48-EU
Recommended max. PV power6.5kW
Max. input voltage500V
Start-up voltage90V
MPPT voltage range90-430V
Full load MPPT voltage range215-430V
Max. input current16A/16A
Max. short circuit current40A
Max. Solar Charge Current100A
MPPT number / Max. input strings number1/2

Battery

Battery TypeLi-ion/Lead-acid
Rated battery voltage48V
Max. charge / discharge power5000W/5000W
Max. charge / discharge current100A
CommunicationCAN/RS485

Inverter Output

Rated output power5kVA/5kW
Operation phase1/N/PE
Rated output voltage230V±1%
Rated grid frequency50Hz/60Hz±0.1%
Surge Capacity10kVA
Max. Output Current25A
Output Voltage WaveformPure sine wave
Transfer Time10ms typical, 20ms Max
THDv (@linear load)<3%
Peak Efficiency (PV-AC)96.6%
Models: S6 EO Series, S6 EO Series Off Grid Inverter, Off Grid Inverter, Inverter

File Info : application/pdf, 32 Pages, 3.16MB

PDF preview unavailable. Download the PDF instead.

EN Manual S6-EO1P(4-5)K

References

Corel PDF Engine Version 24.3.0.571

Related Documents

Preview Solis S6 Series Hybrid Inverter User Manual
User manual for the Solis S6 Series Hybrid Inverter, covering installation, operation, safety, and specifications for models like S6-EH3P5K2-H, S6-EH3P6K2-H, and others.
Preview Solis S6 Series Hybrid Inverter User Manual
User manual for the Solis S6 Series Hybrid Inverter, covering product description, safety warnings, installation, commissioning, maintenance, troubleshooting, and specifications for residential hybrid systems.
Preview Solis S6 Series Hybrid Inverter User Manual
Comprehensive user manual for the Solis S6 Series Hybrid Inverter, covering installation, safety, operation, and troubleshooting for models S6-EH3P3K-H-EU through S6-EH3P10K-H-EU.
Preview Solis S6-GR1P(2.5-6)K Single-Phase Inverters Datasheet
Technical specifications and features of the Solis S6-GR1P(2.5-6)K series of single-phase inverters, including efficiency, input/output parameters, protection features, and general data.
Preview Solis S6 Series Inverter User Manual: Commissioning, Shutdown, and Troubleshooting
Comprehensive user manual for the Solis S6 Series inverter, covering commissioning procedures, shutdown steps, troubleshooting common alarms, and detailed technical specifications. Includes guidance on app usage, settings, and safety precautions.
Preview Solis S6 Mini Series Inverters: Datasheet and Features
Detailed datasheet and features for Solis S6 Mini Series Solar Inverters (0.7kW to 3.6kW), including technical specifications, protection features, and general data.
Preview Solis S6 Series Hybrid Inverter User Manual
Comprehensive user manual for the Solis S6 Series Hybrid Inverter, covering installation, operation, safety, and troubleshooting for commercial hybrid systems. Includes details on applicable models and system configurations.
Preview Solis S6 Mini Single Phase Inverter Installation and Operation Manual
This manual provides detailed instructions for the installation, operation, and maintenance of the Solis S6 Mini Single Phase Inverter. It covers product description, safety instructions, overview, installation procedures, start and stop operations, maintenance, troubleshooting, and specifications.