2
Fault list – safety technology
Fault 20 Device monitoring
Manual – Fault Descriptions MOVISAFE
®
CS..A
33
Subfault: 20.4
Description: Safety card overvoltage DC 24 V
Fault class: System error
Cause
Measure
Overvoltage of DC 24 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.
Subfault: 20.5
Description: Safety card overvoltage protection DC 24 V
Fault class: System error
Cause
Measure
Error in overvoltage protection circuit.
– 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: 20.6
Description: Safety card short-circuit protection DC 24 V
Fault class: System error
Cause
Measure
Error in short-circuit protection circuit.
– 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: 20.12
Description: Safety card temperature error
Fault class: System error
Cause
Measure
Measured temperature outside specified value
range.
– 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