Grid voltage and power stage set are incompatible

What does 453 mean?

This code indicates an incompatibility between the detected grid voltage and the configured power stage set. This mismatch prevents the inverter from safely or correctly feeding energy into the grid.

• Inverter configured for a different grid voltage than the actual connected grid.
• Incorrect power stage set installed for the regional grid standard.
• Human error during inverter commissioning.

Click steps to track your progress.

1. 1

   If the status code is displayed continuously, notify a Fronius-trained service engineer.

2. 2

   Verify the inverter's grid voltage settings against the actual grid voltage measurement.

3. 3

   Ensure the installed power stage set is compatible with the local grid voltage requirements.