460 DSP reference power source outside tolerance - Internal power supply issue for processor.

What does 460 mean?

The reference power source for the inverter's Digital Signal Processor (DSP) is operating outside its acceptable tolerances, indicating an internal power supply problem.

• Internal power supply unit fault.
• Component failure on the DSP board.

Click steps to track your progress.

1. 1

   Perform an AC reset by switching the automatic circuit breaker for the inverter off and then on again.

2. 2

   Observe if the inverter attempts to restart and the code clears.

3. 3

   If this status code persists, contact a Fronius-trained service technician.