Learn why the Tigo EI portal shows 'No Data' for optimizer string B and how to fix it.
The 'No Data' message indicates that the optimizer is not communicating with the portal. This could be due to connectivity issues or a malfunctioning optimizer.
Check the physical connections of the optimizer and ensure it is powered. Additionally, verify the network settings and restart the portal if necessary.
The inverter relies on proper communication with all connected optimizers to monitor and report performance. When the inverter detects a lack of data from string B, it may trigger this fault due to several underlying electrical issues. One common reason is the measurement of insulation resistance (RISO), where low resistance values can indicate possible ground faults. Additionally, if the voltage from the modules in string B is below the minimum threshold required for inverter operation, it will not register any data, leading to this fault condition. Factors such as grid frequency limits or interruptions in communication can also contribute to this issue.
Users may observe that the Tigo EI portal displays 'No Data' for optimizer string B. This may be accompanied by LED indicators on the inverter showing a fault condition or communication error. Additionally, there could be a noticeable drop in overall system production, indicating a potential issue with string B.
Always consult a licensed electrician or certified solar installer when performing any troubleshooting or maintenance on your solar power system.
To avoid future occurrences of this issue, regularly inspect and maintain wiring connections, ensuring they are secure and free from corrosion. Consider implementing routine insulation resistance testing to detect potential ground faults early. Keeping firmware updated and monitoring system performance through the Tigo EI portal can also help in identifying problems before they escalate.