8
Service
Fault table standard
Operating Instructions – MOVIMOT
®
flexible
235
Subfault: 20.2
Description: Supply voltage overload
Response: Output stage inhibit
Cause
Measure
For MOVIDRIVE
®
system, the current load of the
current paths of the DC 24 V standby supply
voltage inside the device is too high. The device
signal output of the device was de-energized be-
cause of the fault message.
Identify the consumer that is overloading the in-
ternal supply voltage:
1. Remove all external consumers:
– At the digital outputs of the basic unit.
– At options that may be present.
– At all encoder connections.
– At other consumers at the DC 24 V output
voltage terminals.
2. Acknowledge the fault.
3. Reconnect the consumers to the device one
after the other until the fault message appears
again.
4. To eliminate the fault, connect a consumer with
a lower current consumption or eliminate the
short circuit.
Subfault: 20.7
Description: Internal hardware fault
Response: Output stage inhibit
Cause
Measure
Fault in the device hardware.
– Acknowledge the fault.
– If the fault occurs repeatedly, replace the
device. For further support, contact
SEW‑EURODRIVE Service.
Subfault: 20.8
Description: Fan warning
Response: Warning with self-reset
Cause
Measure
Fan function impaired.
Check the fan for proper functioning.
Subfault: 20.9
Description: Fan fault
Response: Application stop + output stage inhibit
Cause
Measure
Fan defective.
Contact SEW-EURODRIVE Service.
29128668/EN – 12/2019
