2
Fault list – safety technology
Fault 18 Software error
Manual – Fault Descriptions MOVISAFE
®
CS..A
32
2.4
Fault 18 Software error
Subfault: 18.4
Description: Task system – error
Response: FS – system error
Cause
Measure
A fault was detected while processing the internal
task system. This may be a timeout for cyclical
tasks, for example.
– Switch the device off and on again.
– If the fault occurs repeatedly, contact
SEW‑EURODRIVE Service.
Subfault: 18.7
Description: Fatal error
Fault class: Critical fault
Cause
Measure
Fatal software error.
– 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: 18.9
Description: Internal software error
Fault class: Critical fault
Cause
Measure
The software reports an unexpected event.
– Switch the device off and on again.
– If the fault occurs repeatedly, replace the device
and send it together with the fault number to
SEW‑EURODRIVE. For further support, contact
SEW‑EURODRIVE Service.
2.5
Fault 20 Device monitoring
Subfault: 20.3
Description: Safety card undervoltage DC 24 V
Fault class: System error
Cause
Measure
Undervoltage of DC24 V supply voltage detected. – Check the DC 24 V supply voltage.
– 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.
27799182/EN – 10/2022