Sungrow Single Phase Inverter Commissioning Guide
Clean power for all
Disclaimer
The material in this document has been prepared by Sungrow Australia Group Pty. Ltd. ABN 76 168 258 679 and is intended as a guideline to assist solar installers for troubleshooting. It is not a statement or advice on any of the Electrical or Solar Industry standards or guidelines. Please observe all OH&S regulations when working on Sungrow equipment.
| Version | Revision History | Created and Review by | Date |
|---|---|---|---|
| 1.0 | Issued for Approval | Service Team (Australia) | 11th Nov 2020 |
This document only applies to Sungrow single-phase inverters G2 inverters and Premium versions (including SG2K-S, SG3K-S, SG3K-D, SG4K-D, SG5K-D, SG6K-D and SG8K-D).
The information in this document may contain predictive statements including, without limitation, statements regarding the future financial and operating results, future product portfolio, new technology, etc. There are several factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements. Therefore, such information is provided for reference purpose only and constitutes neither an offer nor an acceptance. Sungrow Power may change to this document without notice as we continuously improving our services.
If you have any questions relation to Sungrow Single Phase Inverter commissioning procedures, please take photos if you are on site and contact Sungrow Service Department on 1800 786 476 or email to service@sungrowpower.com.au, Monday-Friday 9am - 5pm (AEDT).
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 [+ icon] on the top right corner to create a new plant.
App screens show a login interface with fields for Account and Password, and a REGISTER button. The registration screen includes fields for User Type (Distributor/Installer, End User), International Server, Email, Verification Code, Password, Confirm Password, Country/Region, ABN, Company Name, Code of Upper Level Installer/Distributor, and an "Accept Privacy Policy" checkbox. It also shows a "Visitor Login button" and "Local Access button" option.
3. Starting Up the Inverter
3.1 Start Up on Inverter Screen
Turn on the AC and DC switches to start up the inverter. Select the country “AU” and the network the inverter connected to. Wait until the inverter completed initializing and start to work.
Inverter screen displays status indicators and network options. Example indicators shown are: OGB, ODE, OFR, OIT, OES, OAT, OAU, OCZ, OBE, OBRA, OCN, OSE, OTH, OMX, OLUX, ONZ, ONL, Other. Network options include AG (Ausgrid), EE (Ergon Energy), PN (SA Power Networks), PC (Powercor), WP (Western Power), EG (Energex).
Note: The pre-set grid settings on the inverter screen may not be correct or completed. It is highly recommended to initialize the inverter through the iSolarCloud app.
3.2 Start Up on iSolarCloud App
Turn on the AC and DC switches to start up the inverter. Instead of operating on the inverter screen, open iSolarCloud. Navigate through: Local Access button -> WLAN -> Login inverter with the account "admin" and password "pw8888" -> Country/Region -> Select "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 button].
App screens illustrate the WLAN connection process, showing fields for Account (admin) and Login Password (pw8888), and a LOGIN button. It then shows selecting "Australia" for Country/Region and various Network Service Providers like ENERGEX & Ergon Energy, Jemena, CitiPower & Powercor, United Energy, Endeavour Energy, Ausgrid, PowerWater, SA Power Networks. It also shows Grid Type options like STNW1170 and STNW1174, and the final [COMPLETE button] and [NEXT button].
4. WiFi Configuration
- Insert WiFi dongle to the inverter and wait until the first LED light labelled as "RUN" turns on.
- In mobile WiFi settings, search for the WiFi network named "SG-XXXXXXXX" and connect. If a password is required, use the serial number of the dongle as the password.
- Choose either Method 1 or Method 2 below to complete WiFi configuration.
- After successful connection, all three LED lights on the WiFi dongle should be on.
Method 1: Open iSolarCloud -> click the [WiFi icon] -> select "WLAN Configuration" -> Scan the QR code on the WiFi dongle -> select the WiFi network and enter the password.
App screens show scanning a QR code and then selecting a local network from a list of available WLANs (e.g., Telstra0592, SG-B20****4653, HP-Print-46-Officejet Pro X576dw, Lincoln-Sydney, NETGEAR83, HQC Internet Connection, Luxicon Guest), with an option for "Manually".
Method 2: Open iSolarCloud -> [Local Access button] -> WLAN -> Login inverter with the account "admin" and password "pw8888" -> [WLAN Configuration menu] -> select the WiFi network and enter the password.
App screens show a "SUCCESSFULLY CONNECTED" message indicating the inverter is connected to the internet. Further screens show options within the [MORE button] such as "WLAN Configuration", "Settings", "Advanced Settings", "Firmware Update", "Software Version", and [Logout button].
5. Retrofit Setting (Existing System)
Access the inverter through WLAN (refer to section 3.2). Navigate to “Settings” -> “Power Control” -> “Zero-export”. Turn on the “Existing Inverter toggle” switch. Then, input the existing inverter's rated power in the "Renovation System Rated Power" field.
App screens show the navigation path: [MORE button] -> [Settings menu] -> [Power Control menu] -> [Zero-export menu]. The Zero-export screen displays options for "Zero-export" (On/Off/Partial), "Total feed-in power", "Existing Inverter toggle", and "Renovation System Rated Power" input field.
6. Export Limit Setting
Access the inverter through WLAN (refer to section 3.2). Navigate to “Settings” -> “Power Control” -> “Zero-export”. Turn the zero-export function “On” or select "Partial" if there is a limit. Input the allowed feed-in power in the “Total feed-in Power” field.
App screens show the navigation path: [MORE button] -> [Settings menu] -> [Power Control menu] -> [Zero-export menu]. The Zero-export screen shows the "Zero-export" toggle switch with options "Off", "On", "Partial". It also shows the "Total feed-in power" input field and the "Existing Inverter toggle".
7. Power Response Mode Setting
7.1 Volt-Var Setting
Access the inverter through WLAN (refer to section 3.2). Navigate to “Settings” -> “Power Control” -> “Reactive Power Regulation” -> “Reactive Power Regulation” -> [Q(U) option]. Then, go back and input the voltage levels and associate reactive power in percentage (%).
App screens show the navigation path: [MORE button] -> [Settings menu] -> [Power Control menu] -> [Reactive Power Regulation menu]. The Reactive Power Regulation screen allows selection of [Q(U) option], [Q(P) option], or "Off". After selecting [Q(U) option], the user inputs voltage levels (e.g., QU_V1: 207.0 V, QU_V2: 220.0 V, QU_V3: 250.0 V, QU_V4: 265.0 V) and corresponding reactive power percentages (e.g., QU_Q1: -30.0%, QU_Q2: 0.0%, QU_Q3: 0.0%, QU_Q4: 30.0%).
7.2 Volt-Watt Setting
Access the inverter through WLAN (refer to section 3.2). Navigate to “Settings” -> “Power Control” -> “Active Power Regulation”. Turn on the [Power Regulation at Grid Overvoltage toggle]. Then, input the voltage levels and associate active power in percentage (%).
App screens show the navigation path: [MORE button] -> [Settings menu] -> [Power Control menu] -> [Active Power Regulation menu]. The Active Power Regulation screen shows "Active Power Limit Ratio" and [Power Regulation at Grid Overvoltage toggle]. After enabling the overvoltage regulation, users input voltage points (e.g., OPU_V1: 207.0 V, OPU_V2: 220.0 V, OPU_V3: 250.0 V, OPU_V4: 265.0 V) and corresponding active power percentages (e.g., OPU_P1: 100.0%, OPU_P2: 100.0%, OPU_P3: 100.0%, OPU_P4: 20.0%).
8. Overvoltage Protection Settings
Access the inverter through WLAN (refer to section 3.2). Navigate to “Settings” -> “Protection Parameters” -> “Grid Abnormal Protection”. Turn on the [10-min Overvoltage Protection toggle]. Then, input the voltage in the “Protection Value” field.
Note: The 10-minute overvoltage protection value can only be modified by a licensed electrician in accordance with DNSP's requirements.
App screens show the navigation path: [MORE button] -> [Settings menu] -> [Protection Parameters menu] -> [Grid Abnormal Protection menu]. The Grid Abnormal Protection screen shows the [10-min Overvoltage Protection toggle] and a “Protection Value” input field (e.g., 258.0 V). It also shows "Grid Protection Value Auto Adjustment" and "DC Component" fields.
9. Common Issue
9.1 Cannot Connect to SG Signal
This issue can occur when the mobile cannot join the SG signal of the dongle during WiFi configuration. The reason for the problem is that the signal has been occupied by another device. In this case, it is necessary to check if the dongle is already connected with another mobile device such as an iPad. After disconnecting the connection, try to connect to the SG network again.
An example error message shown is: "Unable to join 'SG-B20****0854'. The network is temporarily unavailable. Try again later." with an [OK button].
9.2 Resume Commissioning
Sometimes, when creating the plant on the iSolarCloud, the process might get stuck in "resume commissioning". The reason for this is that the WiFi configuration has not been done properly. To rectify the issue, remove the WiFi dongle from the inverter and plug it in again. Then, redo the WiFi configuration as per Section 4 in this document. To log out the app, follow the steps shown in the app screenshots.
App screens show a security advice: "The current account has a security risk: no phone or email is bound, password resetting will not be supported. Complete Them Now". It also shows navigation to [Settings menu] -> [Account and Security menu] and a [Logout button]. The bottom navigation bar shows icons for [Home icon], [Fault icon], and [More icon].
