What does grid overfrequency mean on Huawei SUN2000 MB0?
- NNicholas KrauseSep 2, 2025
A grid overfrequency alarm on your Huawei Inverter indicates that the power grid frequency is higher than local requirements. If the alarm is occasional, it might be a temporary grid issue, and the inverter should recover automatically. If it persists, check if the power grid frequency is within the acceptable range and contact the local power operator if it isn't. If the frequency is okay, you can modify the grid overfrequency protection threshold via the app, SmartLogger, or NMS with the consent of the local power operator.