12
Troubleshooting
12.1
Procedure
In the event of faults, always observe the information in the project planning
and commissioning instructions. Contact the manufacturer, if necessary.
Malfunction
Failure cause
Measures
Motor does not run
Controller enable signal missing
Activate controller enable signal
Controller fault
Troubleshoot acc. to documentation of control‐
ler
Voltage supply missing
Control voltage supply
Brake is not released
Check the brake activation
Vibrations
Coupling elements or attachments are poorly
balanced
Re-balance
Adjustment of shaft end attachments (coupling,
gearbox, ...) is insufficient
Re-align the attachments
Mounting screws loose
Tighten and secure the screw connections as
specified
Running noise
Foreign bodies within the motor
Stop the motor --> repair by manufacturer
Bearing is damaged
Stop the motor --> repair by manufacturer
High motor tempera‐
tures
Motor
temperature
monitoring is activated
Operation outside of rated data
Reduce load and check the dimensioning
Heat dissipation is impaired
Clean the motor
For fan units, clean fan grille and check the fan
function
For liquid cooling, check cooling circuit.
Wrong or defective
temperature display
Temperature sensor not connected
Connect temperature sensor
Temperature sensor defective
Connect backup temperature sensor
Stop the motor --> repair by manufacturer
Tab. 12-1:
Procedure troubleshooting
MAD / MAF Asynchronous Housing Motors
45/57
Troubleshooting
R911336186_Edition 02 Bosch Rexroth AG
Summary of Contents for Rexroth MAD100
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