Defect in a monitoring channel

What does F01611 mean?

This fault indicates an issue within one of the inverter's safety monitoring channels. Fault value r0949 provides more specific details, ranging from a stop request, data cross-check errors between processors 1 and 2 (1-999), an expired check timer (1000) often due to a signal for a safety function changing too frequently, status discrepancies for STO (2000, 2003) or SS1 (2002), or internal software faults (6000). Unresolved, this fault compromises the integrity of safety functions.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   For initialization errors (1001, 1002) or internal software faults (6000), cycle the inverter power supply (switch off, then on).

2. 4

   For discrepancies (2000, 2001, 2003), increase the F-DI changeover tolerance time (p9650) and check STO selection causes (r9772).

3. 5

   Consider upgrading the inverter firmware or replacing the Control Unit for persistent internal software faults (6000).