Unit utilization (I²t) exceeded

What does 44 mean?

The inverter's utilization, based on its I²t (current squared time) thermal model, has exceeded 125%, indicating a sustained overload condition. This fault leads to an immediate disconnection to protect the inverter's power section from thermal damage due to prolonged high currents.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the suggested actions are not feasible for the application, consider using a larger inverter that is more appropriately sized for the sustained load.