Solis RHI-5G Series Hybrid Inverter

Ginlong Technologies Co., Ltd.

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

Tel: +86 (0)574 6578 1806

Fax: +86 (0)574 6578 1606

Email: info@ginlong.com

Web: www.ginlong.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.

Contents

1. Introduction
2. Safety & Warning
3. Overview
4. Installation
5. Operation
6. Commissioning & Shutdown
7. Maintenance
8. Troubleshooting
9. Specifications
10. Appendix

1. Introduction

1.1 Product Description

The Solis RHI-5G Series is designed for residential hybrid systems, which can work with batteries to optimize self-consumption. The unit can operate in both off- and on-grid modes. The Solis RHI-5G Series has 5 different models: RHI-3K-48ES-5G, RHI-3.6K-48ES-5G, RHI-4.6K-48ES-5G, RHI-5K-48ES-5G, RHI-6K-48ES-5G.

1.2 Packaging

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

• Inverter x1
• Back plate x1
• Fastening screw x3
• AC grid terminal x1
• AC backup terminal x1
• DC connector x2
• RJ45 connector x1 (Only for UK)
• Battery Cable x2
• Rs485 Meter cable x1 (For Acrel Meter)
• Rs485 Meter cable x1 (For Eastron Meter)
• Connector x1
• Terminal cover x1
• Acrel Meter with CT x1 (For Other markets)
• Eastron Meter with CT x1 (For Italian market Only)
• User manual x1
• Battery Temperature Sensor x1 (Optional)

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.
• CAUTION: The surface temperature of the inverter can reach up to 75°C (167°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: AC-BACKUP of RHI-5G Series is forbidden to connect to the grid.
• 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. All Solis single phase inverters feature an integrated DC switch.
• CAUTION: Risk of electric shock, do not remove cover. 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.

3. Overview

3.1 Screen

Solis RHI-5G Series adopts 7 inch color screen, it displays the status, operating information and settings of the inverter.

3.2 Keypad

There are four keys in the front panel of the inverter (from left to right): ESC, UP, DOWN and ENTER keys. The keypad is used for:

• Scrolling through the displayed options (the UP and DOWN keys);
• Access and modify the settings (the ESC and ENTER keys).

3.3 Terminal Connection

Solis RHI-5G Series inverter is different from normal on-grid inverter, please refer to the instructions below before start connection.

• WARNING: Please refer to the specification of the battery before configuration.

2.3 Notice For Use

The inverter has been constructed according to the applicable safety and technical guidelines. Use the inverter in installations that meet the following specifications ONLY:

• Permanent installation is required.
• The electrical installation must meet all the applicable regulations and standards.
• The inverter must be installed according to the instructions stated in this manual.
• The inverter must be installed according to the correct technical specifications.

4. Installation

4.1 Select a Location for the Inverter

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

• Exposure to direct sunlight may cause output power derating. It is recommended to avoid installing the inverter in direct sunlight.
• It is recommended that the inverter is installed in a cooler ambient which doesn't exceed 104°F/40°C.
• Install on a wall or strong structure capable of bearing the weight of the machine (17kg).
• Install vertically with a maximum incline of +/- 5 degrees, exceeding this may cause output power derating.
• To avoid overheating, always make sure the flow of air around the inverter is not blocked. A minimum clearance of 300mm should be kept between inverters or objects and 500mm clearance between the bottom of the machine and the ground.
• Visibility of the LEDs and LCD should be considered.
• Adequate ventilation must be provided.

4.2 Mounting the Inverter

Dimensions of mounting bracket:

Once a suitable location has be found accordingly to 4.1 using figure 4.3 and figure 4.4 mount the wall bracket to the wall.

The inverter shall be mounted vertically.

The steps to mount the inverter are listed below:

1. Select the mounting height of the bracket and mark the mounting holes. For brick walls, the position of the holes should be suitable for the expansion bolts.
2. Lift up the inverter (be careful to avoid body strain), and align the back bracket on the inverter with the convex section of the mounting bracket. Hang the inverter on the mounting bracket and make sure the inverter is secure (see Figure 4.5).

4.3 PV Input Terminal Assembly

Please ensure the following before connecting the inverter:

• Make sure the voltage of the PV string will not exceed the max DC input voltage (600Vdc). Violating this condition will void the warranty.
• Make sure the polarity of the PV connectors are correct.
• Make sure the DC-switch, battery, AC-BACKUP, and AC-Grid are all in their off-states.
• Make sure the PV resistance to ground is higher than 20K ohms.

The Solis RHI-5G Series inverter uses the MC4 connectors. Please follow the picture below to assemble the MC4 connectors. PV wire diameter requirements: 2.5~4mm².

4.4 Battery Terminal Components

To avoid DC Arc, Solis recommends installing DC switch between batteries and Hybrid Inverter.

• Ensure the correct polarity of batteries before connecting to the inverter.
• WARNING: Power cables use water-proof AMPHENOL connectors. When pull out the power cable, you must press the button as indicated in the right figure.
• Connect the Battery cable to the inverter and make sure the positive and negative poles are correct. A "Click" sound means fully connection and fasten the cables with the terminal protection cover as indicated in Figure 4.7.

Note: Before connecting the battery, please carefully read the user manual of the battery and perform the installation exactly as the battery manufacturer requests.

4.5 Assembling the AC Connector

There are two AC terminals and the assembly steps for both are the same. Take out the AC connector parts from the packaging.

1. Make sure you use a cable within the correct specifications as shown in the image below.
2. Lead the AC cable through the cable gland and the housing.
3. Remove a length of 40mm of the cable jacket and strip the wire insulation to a length of 8-15mm.
4. Each of the terminals are labeled. Ensure that the correct conductor is fastened (1.2 N.m. torque) to the correct terminal.
5. WARNING: Observe the terminal layout of terminal block. Do not connect the phase lines to "PE" terminal, otherwise the inverter will not function properly.
6. Make sure the rib of the terminal block and the groove on the housing engage perfectly until a "click" is heard to felt.

4.6 Meter Installation

Solis-RHI-(3-6)K-48ES-5G series inverter is able to connected Acrel meters or Eastron meters to fulfill the control logic of the self-consumption mode, export power control, monitoring, etc.

Acrel 1ph meter (With CT): ACR10R-D16TE

Acrel 3ph meter (With CT): ACR10R-D16TE4 (Optional)

Eastron 1ph meter (Direct Insert): SDM120M

Eastron 1ph meter (With CT): SDM120CTM (Optional)

Eastron 3ph meter (Direct Insert): SDM630M (Optional)

Eastron 3ph meter (With CT): SDM630MCT (Optional)

Below 4.6.1 section describes the connection diagram of the Acrel 1ph meter (With CT) (Standard Accessory for all other market exclude Italy)

Below 4.6.2 section describes the connection diagram of the Eastron 1ph meter (Direct Insert) (Standard Accessory for Italian market)

4.6.1 Single phase meter installation

4.7 Communication Cable Assembly

The RHI-5G Series inverter uses RS485 cable to communicate with the Meter and CAN to communicate with the battery's BMS. The image below shows the assembly of the RS485/CAN communication cables.

NOTE: For CAN cable pin 4 (blue) and pin 5 (white-blue) are used for the communication.

Procedure for connecting the RS485 cable:

1. Take out the RS485 cable (terminal marks 'RS485' on one end and 'to Meter' on the other end).
2. Unscrew the swivel nut from RS485 port.
3. Insert the Two-pin terminal with RS485 label into the RS485 port, then fasten the swivel nut.
4. Connect the other end to the Meter.

NOTE: The CAN cable enables the communication between the inverter and Lithium batteries.

Procedure for connecting the CAN cable:

1. Take out the CAN cable (terminal marks 'CAN' on one end and 'to Battery' on the other end).
2. Unscrew the swivel nut from CAN port.
3. Insert the RJ45 terminal with CAN label into the CAN port, then fasten the swivel nut.
4. Connect the other end to the battery.

NOTE: Lead-Acid and other older-technology battery types require experienced and precise design, installation and maintenance to work effectively. For RHI series inverters there is no temperature compensation, thus client need BTS (battery temperature sensor) which is connected to CAN port at one side and battery negative pole at the other side. BTS is optional. For further information please contact the sales manager. 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.

4.8 External ground connection

An external ground connection is provided at the right side of inverter. Prepare OT terminals: M4. Use proper tooling to crimp the lug to the terminal. Connect the OT terminal with ground cable to the right side of inverter. The torque is 2Nm.

4.9 Logic interface connection

Logic interface is required by some local regulations that can be operated by a simple switch or contactor(Not available in South Africa). When the switch is closed the inverter can operated normally. When the switch is opened, the inverter will reduce it's output power to zero within 5s. Pin5 and Pin6 of RJ45 terminal is used for the logic interface connection. Please follow below steps to assemble RJ45 connector.

1. Insert the network cable into the communication connection terminal of RJ45.
2. Use the network wire stripper to strip the insulation layer of the communication cable. According to the standard line sequence of figure 4.13 connect the wire to the plug of RJ45, and then use a network cable crimping tool to make it tight.

NOTE: To use this function, please contact the manufacturer.

4.10 Inverter monitoring connection

The inverter can be monitored via Wi-Fi or GPRS. All Solis communication devices are optional. For connection instructions, please refer to the Solis Monitoring Device installation manuals.

4.11 LED Indicates

There are three LED indicators on the RHI inverter (Red, Green, and Orange) which indicate the working status of the inverter.

5. Operation

5.1 Initial Display

When powering up the inverter for the first time, it is required to set the language. Press "ENT" to select.

5.2 Main Menu

There are four submenu in the Main Menu:

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

5.3 Information

In the "Information" section, operating data and information can be viewed. Three pages of information can be checked by press "UP" or "DOWN". The example display is shown in the following Figure 5.5, 5.6 and 5.7. Values are for reference only.

NOTE: Meter Power/Grid Power: Positive value indicates exporting power to the grid, negative value indicates importing power from the grid

NOTE: Charge Power: Positive value indicates charging, negative value indicates discharging.

NOTE: Information for "PV Inverter Meter" is only available when two Eastron meters are used and Meter Placement is selected as "Grid+PV Meter". Details please consult Solis service department.

5.4 Settings

In the "Settings" section, Time/Date, Slave address and language can be modified.

5.4.1 Set Time/Date

Set the time and date on the inverter. Must set this according to local time as it affects the daily yield calculation. (If Solis monitoring system is used, must set the correct time zone of the system, otherwise datalogger will update the inverter time based on the time zone of the system.)

Press "UP" and "DOWN" to change the value. Press "ENT" to mover the cursor. Press "ESC" to save the change.

5.4.2 Set Address

Set the slave address of the inverter. The default address is 01.

5.4.3 Set Language

Set system language. Chinese and English are available.

5.5 Advanced Information

Detailed information can be viewed in this section:

1. Alarm Message
2. Running Message
3. Version
4. Communication Data.
5. Daily Energy
6. Monthly Energy
7. Yearly Energy
8. Total Energy.
9. Warning Message

5.5.1 Alarm Message

40 pages of latest alarm messages (5 per page). Alarm message shows the alarm that will lead to inverter shutdown.

5.5.2 Running Message

This function is for maintenance person to get running message such as internal temperature, Standard NO. etc. (Values are for reference only.).

5.5.3 Version

Inverter model number and software version can be viewed in this section. Values are for reference only.

5.5.4 Communication Data

Internal communication data can be viewed in this section. For maintenance person only. Values are for reference only.

5.5.5 Daily Energy

The screen shows the daily energy detail of the inverter.

5.5.6 Monthly Energy

The screen shows the inverter monthly energy detail of different month.

5.5.7 Yearly Energy

The screen shows the inverter yearly energy detail of different year.

5.5.8 Total Energy

The screen shows the inverter total energy detail.

5.5.9 Warning Message

10 pages of latest warning messages (5 per page). Warning message shows the warning that is abnormal but will not lead to inverter shutdown.

5.6 Advanced Settings - Technicians Only

NOTE: This function is for authorised technicians only. Improper access and operation may result in abnormal results and damage to the inverter. Password required - restricted access authorised technicians only. Un-authorised access may void the warranty. (Password "0010")

Select Advanced Settings from main menu, the LCD screen show the password is needed:

5.6.1 Select Standard

This function is used to select corresponding grid standards. Please refer to the actual LCD setting for the grid standard options.

Press "UP" and "DOWN" to go through the list. Press "ENT" to check the parameters, press "ENT" again to select the standard.

5.6.2 ON/OFF

This function is used to start or stop the generation of the inverter.

5.6.3 Calibrate

Warranty or maintenance may result in resetting total generating data, this function allow the maintenance personnel to amend the total generating data of replacement inverter to the original one.

By using our data monitoring hardware, the data on monitoring website can automatically synchronize with the preset total generating power of inverter.

5.6.4 Reset Password

Reset Password: In this page, user can reset the inverter password, but the admin password is always valid.

5.6.5 Restart HMI

This function is to reboot the LCD screen.

5.6.6 Storage Energy Set

This section contains working mode setting, battery control setting, etc.

5.6.6.1 Control Parameter

Enter the Control Parameter menu as shown below: Don't change the settings without the permission of technicians.

5.6.6.2 Battery Select

This product is compatible with the following battery modules:

NOTE: If hybrid inverter is not connected to a battery, select "No Battery" to avoid alarms.

For above compatible battery modules, Only two parameters need to be defined:

• OverDischg SOC (10%~40%, default 20%) --Inverter will not discharge the battery when the OverDischg SOC is reached. Battery self-discharge is unavoidable, SOC may go lower than the limit if the battery can't get charged for a long period of time.
• ForceCharge SOC (5%~OverDischg SOC, default 10%) --To prevent the battery going into sleep mode, when the ForceCharge SOC is reached, inverter will charge the battery using the power from either PV or Grid.

5.6.6.3 Meter Set

These settings are used to select the meter types and meter installed locations based on the actual configuration.

5.6.6.3.1 Meter Select

5.6.6.3.2 Meter Placement

Grid: Meter is installed at the grid connection point. Load: Meter is installed at the load branch circuit. Grid+PV Inverter: One meter is connected at the grid connection point, the other meter is connected at the AC output port of an extra PV inverter. (Eastron Meter supported).

5.6.6.4 Storage Mode Select

There are 5 working modes available. 1. Self Use Mode 2. Feed in Priority Mode 3. Backup Mode 4. Off Grid Mode 5. EPS Mode. Only 1 mode can be enabled at the same time. Please refer to Appendix 9.4 for explanations and setting instructions for each mode.

5.6.7 Battery Wakeup

This function should be activated only after the installation. In the case of a low battery voltage shutdown, the inverter will shut-down. This setting can be enabled, so when the inverter detects PV or grid it wakes up the battery. This function conflicts with the battery reverse polarity protection (If the installer connects cables with wrong polarity, the inverter can protect itself from damage). To avoid the possible damage during installation, do not active battery wakeup function before finishing the first commissioning.

5.6.7 Export power Set

This function is to set the export power control. 1. Backflow Power. 2. ON/OFF. 3. Failsafe ON/OFF. Setting 1&3 are only valid when Setting 2 is set to "ON"

5.6.7.1 Backflow Power

Determine the allowed backfeed power. (System export to the grid)

5.6.7.2 ON/OFF

Enable/Disable the function.

5.6.7.3 FailSafe ON/OFF

When this Failsafe function is ON, the inverter will shutdown once it loses communication with the meter in case of any backflow power exceeding the limit.

5.6.8 HMI Update

This function is used to update HMI software. Values are for reference only.

5.6.9 DSP Update

This function is used to update DSP software. Values are for reference only.

5.6.10 Baud Rate RS485

This function is to change the internal communication Baudrate.

WARNING: This function is for maintenance personnel only, wrong operation will prevent the inverter from working properly.

5.7 AFCI function

Inverters have the built-in AFCI function which can detect the arc fault on the DC circuit and shut down the inverter to prevent a fire disaster.

5.7.1 Enable the AFCI function

The AFCI function can be enabled in the following. Path: Advanced Setting -> Password: 0010 -> AFCI Set -> AFCI ON/OFF -> ON

WARNING: The setting corresponds to the current status as well which can be used to inspect the ON/OFF state of the AFCI function.

5.7.2 Arc Fault

During the normal operation, if an DC arc is detected, the inverter will shut down and give out the following alarm:

Installer needs to thoroughly inspect the DC circuit to ensure all the cables are correctly fastened. Once the DC circuit issue has been fixed or it is confirmed to be OK, press "ESC" for 3s and wait for the inverter to restart.

NOTE: If you find your inverters's user interface is different from what's in the fast installation guide, please contact after-sales engineer or technical support.

WARNING: The "AFCI Level" is reserved for technicians ONLY. Do not change the sensitivity otherwise it will lead to frequent false alarms or malfunctions. Manufacturer is not responsible for any further damages caused by unauthorized modifications.

6. Commissioning

6.1 Preparation of Commissioning

• Ensure all the devices are accessible for operation, maintenance and service.
• Check and confirm that the inverter is firmly installed.
• Space for ventilation is sufficient for one inverter or multiple inverters.
• Nothing is left on the top of the inverter or battery module.
• Inverter and accessories are correctly connected.
• Cables are routed in safe place or protected against mechanical damage.
• Warning signs and labels are suitably affixed and durable.

6.2 Commissioning Procedure

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

1. Turn on inverter DC switch
2. Turn on battery breaker or battery switch button on the battery.
3. Select the grid standard code.
4. Configure the parameters.
5. Switch on AC backup and AC grid.
6. Verify inverter initializing.

6.3 Shutdown procedure

1. Turn off the AC isolator at the grid connection point.
2. Turn off the DC switch of the inverter.
3. Turn off the DC switch between inverter and battery.
4. Waiting for the LCD of inverter to turn off and the system shutdown is completed.

7. Maintenance

Solis RHI-5G Series inverter does not require any regular maintenance. However, cleaning the heatsink will help inverter dissipating heat and increase the lifetime of inverter. 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. Turn OFF the inverter (refer to Section 6.2) and let it cool down before you do any maintenance or cleaning of inverter.

The LCD and the LED status indicator lights can be cleaned with cloth if they are too dirty to be read.

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

8. Troubleshooting

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

In case of a failure the LCD screen will display an alarm message. In this case the inverter may stop feeding energy into the grid. The alarm descriptions and their corresponding alarm messages are listed in Table 8.1:

When faults occur, the "Fault" state will be shown on the main screen. Follow the steps below to check what fault occurs.

Steps: Enter → Down→ Advanced Information Enter→Alarm Message.

Step1: Press ENTER.

Step2: Press DOWN to select Advanced Information, then press ENTER.

Step3: Press DOWN to select Alarm Message, then press ENTER.

NOTE: If the inverter displays any alarm message as listed in Table 8.1; 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 Single Phase Inverter;
2. The distributor/dealer of Solis Single Phase 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 6.2) 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.

9. Specifications

*This model is not available in Belgium.

10. Appendix

10.1 Battery Terminal Assembly

In order to avoid DC arc, Solis suggest to install a DC switch between the battery and RHI inverter.

• Make sure the polarities of battery is correct before connecting to the inverter;
• Please follow the instructions below to choose the battery power cable.

NOTE: Power cable uses water-proofed AMPHENOL connectors. It must keep pressing this Lock Button during pulling out the power plug.

10.2 Three phase meter connection

10.3 Special Back-up Connection

For some markets such as Italy, etc., the backup port and grid port should not be powered at the same time.

When the grid is present, the grid port should be used to support the loads. When the grid is lost, the backup port should be used to support the loads.

An interlocking function between the backup port and grid port is necessary. Therefore, a separate NPS box and firmware upgrade is needed to achieve this function. Please consult Solis technicians for details and refer to the NPS box installation manual.

10.4 Working Mode Description

Mode 1: Self-Use Mode Logic (Maximize the usage of PV)

PV Power Using Priority: Load>Battery>Grid

Load Support Priority: PV>Battery>Grid

Battery Charging Power comes from PV. (If "Charging From Grid" is allowed, it can also come from Grid)

If "Time of Use" is "Run", the logic will follow the charging/discharging settings and time settings as defined in "Time of Use". For those undefined period of time, it will still follow the Self-Use logic.

Time of use for Self use

Path: Advanced Settings-> Storage Energy Set-> Storage Mode Select->Self-Use Mode-> ON-> Time of use for Self use

Charging from gird self use

Path: Advanced Settings-> Storage Energy Set->Storage Mode Select->Self-Use Mode-> ON->Charging from gird for Self use

Mode 2: Feed In Priority Mode Logic (Feed the excess PV to Grid in order to gain s ubsidies)

PV Power Using Priority: Load>Grid>Battery

Load Support Priority: PV>Battery>Grid

Battery Charging Power comes from PV. (If "Charging From Grid" is allowed, it can also come from Grid)

If "Time of Use" is "Run", the logic will follow the charging/discharging settings and time settings as defined in "Time of Use". For those undefined period of time, it will still follow the Feed in Priority logic.

Time of use for Feed for priority

Path: Advanced Settings-> Storage Energy Set-> Storage Mode Select-> Feed in Priority Mode->ON-> Time of use for Feed for priority

Charging from gird for Feed for priority

Path: Advanced Settings-> Storage Energy Set-> Storage Mode Select-> Feed in Priority Mode->ON-> Charging from gird for Feed for priority

Mode 3: Backup Mode Logic (Keep the Battery at a certain SOC and only use it during power outage)

Backup Mode Logic: Keep the Battery at a certain SOC and only use it during power outage.

Backup SOC Setting Range: From Battery "Overdischarge SOC" to 100%

PV Power Using Priority: Battery>Load>Grid

Load Support Priority: PV>Grid>Battery

Battery Charging Power comes from PV. (If "Charging From Grid" is allowed, it can also come from Grid)

* The "Backup Mode" is not applicable for Lead-acid batteries.

Charging from gird for Backup mode

Path: Advanced Settings-> Storage Energy Set-> Storage Mode Select->Backup Mode-> ON-> Backup SOC->Charging from gird for Backup mode

Mode 4: Off-Grid Mode Logic (For Off-grid use and AC-Grid Port Disconnected)

OverDischg SOC for Off-Grid Setting Range: From Battery "Forcecharge SOC" to 100%

PV Power Using Priority: Load>Battery

Load Support Priority: PV>Battery

Battery Charging Power comes from PV.

Off Grid Mode

Path: Advanced Settings-> Storage Energy Set-> Storage Mode Select-> Off-Grid Mode-> ON->Off Grid Mode

Mode 5: EPS Mode Logic (Need to work with external Solis NPS switching Box to achieve switching function)

When grid is available, only the Grid Port is enabled and load is supported through NPS box by the grid.

When grid is lost, Grid Port will be disabled and after the "Switching Time", the Backup Port will be enabled and then load is supported through NPS box by the Backup Port.

*It gives up the UPS function of the backup port and manually set the switching time. This mode must work with the Solis NPS switching Box.

Otherwise it may cause some unexpected control mistakes.

EPS Mode

Path: Advanced Settings-> Storage Energy Set-> Storage Mode Select-> EPS Mode-> EPS En/Disable-> Enable

10.5 Grid standard selection guide

NOTE: Please check if the grid code setting comply with local requirement.

For different countries and regions, corresponding grid code needs to be selected in the inverter LCD to meet the requirements of local network provider.

This instruction indicates how to change the grid code and what code should be selected in different places.

This following list illustrates the grid standard options in the inverter which are subject to change. It is for your reference only. If customer has any doubts or uncertainty, please consult Solis service department for confirmation.

To set the correct grid code, please enter the following path: Advanced Settings -> Password:0010 -> Select Standard

Detailed protection limits can be viewed when choosing the code. Please select "Save&Send" to enforce the code.