Introduction
This document serves as a quick guide for solar installers, providing essential steps for commissioning Sungrow EyeM4 (WiFi) dongles with SG30/50/110CX inverters. It is intended as a guideline for troubleshooting and should be read in conjunction with Sungrow's User Manuals.
Disclaimer: The material is not a statement or advice on industry standards but a procedural guideline. Always observe OH&S regulations when working with Sungrow equipment.
Key Components and Requirements
- Sungrow EyeM4 (WiFi) Dongle
- Sungrow SG30/50/110CX Inverters
- Energy Meter: DTSD1352-C/1(6)A (with external CT) for export control and load consumption.
Connection Procedures
RS485 Connection
Inverters and the energy meter connect via daisy-chain RS485 topology. Up to 10 devices can be connected with an EyeM4 (WiFi) Dongle. The EyeM4 and energy meter should be connected to the first or last inverter in the chain.
RS485 wiring uses terminal blocks, with RS485A+ connected to A1 and RS485B- to B1. For more than 15 inverters, ensure termination resistors (120 Ohm) are enabled (SW1 ON) on the first and last inverter.
Energy Meter to Inverter Connection
For installations over 80 Amps, the CT ratio must be calculated and set via the EyeM4 interface. For supplies under 80 Amps, the DTSU666 with inbuilt CTs can be used.
When using RJ45, pin 3 (White-green) connects to RS485- B, and pin 6 (Green) connects to RS485+ A. On the meter side, terminal 21 connects to the Green cable (RS485+ A), and terminal 22 connects to the White/Green cable (RS485- B).
Important: Connect the energy meter RS485 to the A2/B2 (RS485-2 Interface) terminals in the inverter that houses the EyeM4 dongle.
Software and Configuration
iSolarCloud App Setup
Enable the RS485 Port for the inverter via the iSolarCloud App using Bluetooth. Log in with "admin" and password "pw8888". Navigate to "More" > "Settings" > "Operation Parameters" > "Other Parameters" and enable "Transparent Transmission Via Standby RS485 Port".
Create a solar plant in iSolarCloud for online monitoring. This involves creating an account, then creating a plant, linking it to the EyeM4, potentially by scanning a QR code or manual entry.
EyeM4 Web Interface Access
Connect to the EyeM4's WiFi network (e.g., SG**********) using a smart device or laptop. Open a web browser and access the interface via IP address 11.11.11.1 with the password pw1111.
Inverter and Meter Configuration
Within the EyeM4 interface, navigate to 'Device' and perform an 'Auto search' for inverters. Confirm connection status. Manually add the energy meter (e.g., DTSD1352) via 'Add device', setting the port to COM1 and the address to 254.
Set the CT Transformation Ratio for the energy meter (e.g., enter 40 for a 200/5 ratio).
Export Control Setup
To set export control, navigate to "Power Control" > "Active Power". Configure parameters such as "Fixed Value of Active Power" to limit export (e.g., 20 kW for a 50 kW inverter). Ensure "Feed-in stop" is disabled.
WiFi and Remote Maintenance
Configure the EyeM4's WiFi connection by selecting "System" > "Port Parameters" > "WiFi", enabling it, choosing the customer network, and entering the password.
For remote monitoring, select "System" > "Remote maintenance", enable the function, and ensure the "Remote Service Address" is set to "International Server". Then, go to "System" > "Transfer Configuration" and set the Server Domain to api.isolarcloud.com.hk.
Final Check and Support
After completing the settings, return to "Remote Maintenance" to verify the EyeM4 connects to the iSolarCloud server. A cloud icon indicates a successful connection.
For any questions or support, contact Sungrow Service Department:
- Phone: 1800 786 476
- Email: service@sungrowpower.com.au
- Hours: Monday - Friday, 9am - 5pm (AEDT).
