Sungrow G2 3 Phase PV Inverter Commissioning Guide

1. Download iSolarCloud App

Search iSolarCloud in App Store or Google Play Store or scan the QR code below to download and install iSolarCloud on the mobile.

[QR code for iSolarCloud app download]

2. Create Account and Plant

Open iSolarCloud, register an account if you do not have one. Choose the account type and complete registration. Login the account and click the top right PLUS icon [+] to create a new plant.

[Screenshots show mobile app interface: Login screen, User Registration screen with fields for Email, Password, Country/Region, Network Service Provider, Grid Type, and a 'Register' button; followed by a plant status screen with 'RESUME COMMISSIONING' and 'NEW plant' options.]

3. Starting Up the Inverter

3.1 Grid Initial Setting

Turn on the AC and DC switches to start up the inverter. Click the Smart Config button THREE TIMES on the WiNet, then connect the mobile device to the 'SG-xxxxxxxxxxx' Wi-Fi network. Open iSolarCloud. Navigate: Local Access -> WLAN -> Login inverter with the account "admin" and password "pw8888" -> Country/Region -> Australia (do not select other Australia networks) -> Network Service Provider -> Select the NSP, if not specified, select AS/NZS 4777.2:2015 -> Grid Type -> Select specific grid type -> TURN ON DEVICE.

[Screenshots illustrate the process: Login screen with Account and Password fields; WLAN connection screen showing 'admin' account and 'pw8888' password with a 'LOGIN' button; a sequence of 'INITIALIZE PROTECTION PARAMETER' screens for Country/Region, Network Service Provider, and Grid Type selection, showing selections for 'Australia', 'ENERGEX & Ergon Energy', and 'AS/NZS 4777.2:2015', concluding with a 'COMPLETE' button.]

4. WiNet Configuration

4.1 Method 1

Step 1: Connect the mobile phone to the customer's home Wi-Fi network. Ensure the WiNet dongle is compatible with 2.4G signal (e.g., connect to Telstra0592, not Telstra0592-5G).

Step 2: Open the iSolarCloud app, log in, and click the top right PLUS icon [+] to create a plant. Select RESIDENTIAL as the plant type.

[Screenshots show mobile Wi-Fi settings connected to 'Telstra0592'; iSolarCloud app with a '+' icon; 'SELECT PLANT TYPE' screen with 'RESIDENTIAL' and 'COMMERCIAL' options.]

Select PV as the inverter type. Select WLAN as the internet access method. Scan the QR code on the front of the Wi-Net dongle.

[Screenshots show 'SELECT INVERTER TYPE' with 'PV' and 'HYBRID' options; 'INTERNET ACCESS' with 'WLAN' and 'ETHERNET' options; 'SCAN QR CODE' screen.]

Step 7: The app will display EASYCONNECT INSTRUCTION after a successful QR code scan. Press the Multifunctional Button once on the WiNet to activate SmarConfig mode. Click NEXT in the iSolarCloud app.

Step 8: Verify the home network name and enter the correct home network password. Click NEXT.

Step 9: Wait 15-20 seconds for the app to display SUCCESSFULLY CONNECTED. Click 'COMPLETE' to finish the configuration.

[Screenshots show 'EASYCONNECT INSTRUCTION'; 'ENTER LOCAL NETWORK INFORMATION' with Name and Password fields; 'SUCCESSFULLY CONNECTED' screen with a checkmark icon [✔️].]

4.2 Method 2

Click the Smart Config button THREE TIMES on the WiNet, then connect the mobile device to the 'SG-xxxxxxxxxxx' Wi-Fi network. Open iSolarCloud -> click the menu icon [☰] -> select "WLAN Configuration" -> Scan the QR code on the WiNet dongle -> select the WiFi network and enter the password.

[Screenshots show Login screen; 'SCAN QR CODE' screen; 'SELECT LOCAL NETWORK' screen listing available WLAN networks.]

5. Export Limit Setting

Access the inverter via WLAN (refer to 4.2). Navigate: Select "More" -> "Settings" -> "Power Control" -> "Zero-export". Enable "Zero-export" or select "Partial" if a limit is required. Input the allowed feed-in power in "Total feed-in Power".

[Screenshots illustrate navigation through settings menus: WLAN Configuration, Settings, Download Log, Firmware Update, Software Version; then Operation Parameters, Power Regulation Parameters, Protection Parameters, Communication Parameters; then POWER REGULATION PARAMETERS showing Active Power Regulation, Power Regulation at Grid Overvoltage, Feed-in Limitation, Reactive Power Regulation; finally, the FEED-IN LIMITATION screen with a toggle for 'Feed-in Limitation', 'Feed-in Limitation Value' (e.g., 6.90 kW), and 'Feed-in Limitation Ratio' (e.g., 100.0%).]

6. Power Response Mode Setting

6.1 Volt-Var Setting

Access the inverter via WLAN (refer to 4.2). Navigate: Select "More" -> "Settings" -> "Power Regulation Parameters" -> "Reactive Power Regulation". Set "Reactive Power Regulation" to "Q(U)". Input the voltage levels and corresponding reactive power percentages (%).

[Screenshots show navigation through settings menus; POWER REGULATION PARAMETERS screen highlighting Reactive Power Regulation; REACTIVE POWER REGULATION screen with 'Q(U)' selected, displaying voltage levels (QU_V1, QU_V2, etc.) and reactive power percentages (QU_Q1, QU_Q2, etc.).]

6.2 Volt-Watt Setting

Access the inverter via WLAN (refer to 4.2). Navigate: Select "More" -> "Settings" -> "Power Regulation Parameters" -> "Power Regulation at Grid Overvoltage". Enable "Power Regulation at Over Voltage". Input the voltage levels and corresponding active power percentages (%).

[Screenshots show navigation through settings menus; POWER REGULATION PARAMETERS screen highlighting Power Regulation at Grid Overvoltage; POWER REGULATION AT GRID OVERVOLTAGE screen with a toggle for 'Power Regulation at Grid Overvoltage', displaying voltage levels (OPU_V1, OPU_V2, etc.) and active power percentages (OPU_P1, OPU_P2, etc.).]

7. Overvoltage Protection Settings

Access the inverter via WLAN (refer to 4.2). Navigate: Select "More" -> "Settings" -> "Protection Parameters" -> "10-min Overvoltage Protection". Enable "10-min Overvoltage Protection". Input the voltage in "Protection Value".

Note: The 10-min overvoltage protection value can only be modified by a licensed electrician in accordance with DNSP's requirements.

[Screenshots show navigation through settings menus; PROTECTION PARAMETERS screen highlighting 10-min Overvoltage Protection; 10-MIN OVERVOLTAGE PROTECTION screen with a toggle for '10-min Overvoltage Protection', and fields for 'Protection Value' (e.g., 255.0 V) and 'Recovery Value' (e.g., 253.0 V).]

8. Common Issue

8.1 Cannot Find SG Signal

This issue occurs if the customer did not click the Multifunctional Button three times before searching the SG network. The WiFi network name should start with 'SG-Yxxxxxxxxxx'.

[Screenshot shows 'EASYCONNECT INSTRUCTION' and 'How to turn on the EasyConnect mode'.]

8.2 Configure Failure

If the customer did not turn on the smart configure function (pressing the Multifunctional Button once) before the configuration, the APP would display the following information:

[Screenshot shows a 'FAILED' message detailing potential causes: incorrect password, router settings (AP isolation, MAC filtering, broadcast packet filtering), router distance, 2.4GHz band connection, home network status. It also suggests 'WLAN Direct Connection' as a fallback.]

[Buttons: 'TRY AGAIN', 'WLAN DIRECT CONNECTION']