Protection fault

What does 21 mean?

A CPU-related fault indicating that a protection mechanism within the inverter electronics has been triggered. This could be due to an internal hardware error or an attempt to perform an operation outside defined safety limits, causing communication to stop (DO=0).

• Faulty inverter electronics components.
• Errors during the execution of the system software.

Click steps to track your progress.

1. 1

   Reset the fault by switching off the 24VDC supply voltage or using MOVILINK.