8
Service
Fault table CiA402 profile
Operating Instructions – MOVIMOT
®
flexible
272
8.7.9
Fault 11 Temperature monitoring
Subfault: 11.1
Description: Heat sink overtemperature
Response: Output stage inhibit
Cause
Measure
Maximum permitted heat sink temperature ex-
ceeded. The capacity utilization is possibly too
high.
– Reduce the load.
– Reduce the rms value of the current.
– Reduce the PWM frequency.
– Ensure sufficient cooling.
– Reduce the ambient temperature.
Subfault: 11.2
Description: Heat sink utilization – prewarning
Response: Heat sink utilization – prewarning
Cause
Measure
High thermal load on heat sink of device, and pre-
warning threshold reached.
– Reduce the load.
– Reduce the rms value of the output current.
– Reduce the PWM frequency.
– Ensure sufficient cooling.
– Reduce the ambient temperature.
Subfault: 11.3
Description: Device utilization
Response: Output stage inhibit
Cause
Measure
The temperature has reached or exceeded the
switch-off threshold. Possible causes: Mean out-
put current too high.
Reduce the load.
PWM frequency too high.
Reduce the PWM frequency.
Ambient temperature too high.
Ensure sufficient cooling.
Unfavorable air convection.
Check air convection.
Fan defective.
Check the fan and replace if necessary.
Subfault: 11.5
Description: Electromechanical utilization
Response: Output stage inhibit
Cause
Measure
Electromechanical components of device over-
loaded by excessive continuous current.
Reduce the load. If necessary, reduce the rms
value of the current.
29128668/EN – 12/2019
