Sungrow 3-Phase Inverter iSolarCloud Commissioning Guide
For 5kW to 20kW Models
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.
Introduction
This document explains the steps for commissioning Sungrow 3-phase grid-connected inverters (5kW to 20kW range) using the iSolarCloud App via local Bluetooth access. These inverters do not have a screen and rely on the app for configuration and monitoring of major parameters.
Step 1: Local Login
To begin commissioning, log in to the inverter locally. Access this function by clicking “Local Access” under the “More” menu, or by selecting the “Bluetooth” connection option on the bottom right of the home page within the iSolarCloud app.
Figure 1: Local Access Login screen showing app interface for accessing local login options.
A list of nearby inverters will appear. Select the Serial Number (SN) of the inverter you wish to commission. Once connected, the SN will be displayed on the top right with a confirmation tick. You can then proceed to log in using the username “admin”. For the password, please contact the Sungrow Service Department.
Figure 2: Bluetooth Login screen showing the app interface for entering admin credentials.
Step 2: Initial Configuration
Upon the first login via Bluetooth, the “Initial Protection Parameter” option will be presented. Here, you can set the country. Selecting “Australia” will automatically configure the protection parameters according to the AS/NZS 4777 standard. Note: Specific grid settings may be subject to change.
Figure 3: Initial Configuration screen showing the country selection interface, with Australia highlighted.
After selecting the country, press the “Boot” button to finalize the initial protection parameter setup. The app will then redirect to the local login homepage, where the inverter's performance can be viewed. Further settings are accessible via the “More” tab.
Figure 4: Home Page screen displaying inverter status, power output graph, and key metrics like SN and date.
Step 3: Date and Time Settings
The date and time can be configured within the “System Parameters” section of the app.
Figure 5: Date and Time settings screen within the app's System Parameters menu.
Step 4: Protection Parameters
To configure the relevant grid protection parameters, navigate to “Protection Parameters” from the “More” menu.
Figure 6: Protection Parameters screen showing various protection settings like voltage and frequency levels.
The document provides specific protection parameters based on different Grid Company Codes:
| Grid company Code | Company |
|---|---|
| AG | AusGrid, NSW |
| EE | Ergon Energy, QLD |
| EG | Energex, QLD |
| PN | SA Power Networks, SA |
| PC | Powercor, VIC |
| WP | Western Power, WA |
Detailed grid parameters for these codes are listed below. Please refer to the relevant Distribution Network Service Provider (DNSP) for the most up-to-date standards.
| Parameter | Grid Code | ||||||
|---|---|---|---|---|---|---|---|
| Default | AG | EE | EG | PN | PC | WP | |
| Over-voltage | |||||||
| 1-Vmax (V) | 260.0 | 260.0 | 265.0 | 265.0 | 260.0 | 260.0 | 260.0 |
| 1-Time (s) | 2.0 | 1.80 | 0.20 | 0.20 | 1.80 | 1.80 | 1.80 |
| 2-Vmax (V) | 260.0 | 260.0 | 265.0 | 265.0 | 260.0 | 260.0 | 260.0 |
| 2-Time (s) | 2.0 | 1.80 | 0.20 | 0.20 | 1.80 | 1.80 | 1.80 |
| Under-voltage | |||||||
| 1-Vmin (V) | 180.0 | 180.0 | 200.0 | 180.0 | 180.0 | 180.0 | 180.0 |
| 1-Time (s) | 2.0 | 1.80 | 1.80 | 1.80 | 1.80 | 1.80 | 1.80 |
| 2-Vmin (V) | 180.0 | 180.0 | 200.0 | 180.0 | 180.0 | 180.0 | 180.0 |
| 2-Time (s) | 2.0 | 1.80 | 1.80 | 1.80 | 1.80 | 1.80 | 1.80 |
| Over-frequency | |||||||
| 1-Fmax (Hz) | 52.00 | 52.00 | 52.00 | 52.00 | 52.00 | 52.00 | 51.50 |
| 1-Time (s) | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
| 2-Fmax(Hz) | 52.00 | 52.00 | 52.00 | 52.00 | 52.00 | 52.00 | 51.50 |
| 2-Time (s) | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
| Under-frequency | |||||||
| 1-Fmin (Hz) | 47.00 | 48.00 | 47.00 | 47.00 | 47.00 | 47.00 | 47.00 |
| 1-Time (s) | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
| 2-Fmin (Hz) | 47.00 | 48.00 | 47.00 | 47.00 | 47.00 | 47.00 | 47.00 |
| 2-Time (s) | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
Step 5: Power Factor [Pf] / Reactive Power Control [Q(u)]
Volt-Var and power factor (Pf) settings can be configured under “Operation Parameters” via the “Active and Reactive Power” option. To adjust these, click on “Reactive Adjusting Switch”.
Figure 9: Active and Reactive Power settings screen showing options like Pac Limit and Reactive Adjusting Switch.
You can select “Pf” to set a specific power factor or “Q(u)” to adjust Volt-Var settings. The required voltage and reactive power ratios can be entered according to the local DNSP's specifications.
Figure 10: Reactive Adjusting Switch screen displaying options for setting Power Factor (Pf) or Reactive Power (Q(u)), including Q(U) voltage points.
Step 6: 10-Min Overvoltage Setting
The 10-minute overvoltage setting can be adjusted under “Advanced Settings”. The protection level and recovery value can be set according to the local DNSP's requirements.
Figure 11: 10-Min Overvoltage Protection screen within Advanced Settings.
Step 7: Feed-In Limitation and CT Ratio
If the inverter needs to have its export limited, this can be configured using the “Feed-in Limitation” option found under “Advanced Parameters”.
Figure 12: Feed-In Limitation screen within Advanced Settings.
The feed-in limitation value represents the export limit amount, and the feed-in limitation ratio is the proportion of the allowed limit to the inverter's total rating. For example, if a 10kW inverter is to be limited to 5kW export, the Feed-In Limitation Value should be set to 5kW, and the Feed-In Limitation Ratio to 50%.
Figure 13: Feed-In Settings screen showing the input fields for Feed-in Limitation Value and Ratio.
If a DTSD1352-C meter with external CTs has been used (e.g., with SG15/20KTL-M models), the CT ratio settings will appear under the “Feed-In Limitation” settings and can be configured accordingly.
Figure 14: CT Ratio settings screen, showing options for Current Transformer type, output current, and measuring range.
Support
If issues persist after following these procedures, please capture photos of the testing on site and contact the Sungrow Service Department:
- Phone: 1800 786 476
- Email: service@sungrowpower.com.au
