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Fault list – safety technology
Fault 66 Safety-related fault
Manual – Fault Descriptions MOVISAFE
®
CS..A
74
Subfault: 66.92
Description: Error saving referencing data to internal NV memory
Response: FS – system error
Cause
Measure
Error saving referencing data to internal NV
memory.
– Acknowledge the fault.
– If the fault occurs repeatedly, replace the safety
card and send it together with the fault number to
SEW-EURODRIVE. For further support, contact
SEW‑EURODRIVE Service.
Subfault: 66.93
Description: External watchdog fault
Fault class: System error
Cause
Measure
External watchdog tripped.
– Acknowledge the fault.
– If the fault occurs repeatedly, replace the safety
card and send it together with the fault number to
SEW‑EURODRIVE. For further support, contact
SEW‑EURODRIVE Service.
Subfault: 66.94
Description: Error during external watchdog diagnostics
Fault class: System error
Cause
Measure
Error detected during external watchdog diagnos-
tics.
– Switch the device off and on again.
– If the fault occurs repeatedly, replace the safety
card and send it together with the fault number to
SEW‑EURODRIVE. For further support, contact
SEW‑EURODRIVE Service.
Subfault: 66.95
Description: Referencing data corrupt
Response: FS – warning
Cause
Measure
Referencing data corrupt.
Perform a new referencing.
Subfault: 66.96
Description: Error saving referencing data to safety key
Response: FS – system error
Cause
Measure
Error while saving referencing data to safety key.
– Perform a new referencing.
– If the fault occurs repeatedly, replace the safety
key. For further support, contact
SEW‑EURODRIVE Service.
27799182/EN – 10/2022