Table 18: Measures in case of malfunctions
Error description Reason Solution
Motor does not run Controller enable signal missing Activate controller enable signal
Controller fault Troubleshoot acc. to documentation of
controller
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 Lock screw connections acc. to specifi-
cations
Running noise Foreign bodies within the motor Stop the motor ➨ repair by manufacturer
Bearing is damaged Stop the motor ➨ repair by manufacturer
High motor temperatures
Motor temperature monitoring is acti-
vated
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 Stop the motor --> repair by manufac-
turer
Replace temperature sensor
Connect the backup temperature sensor,
if any is available.
13 Technical data
13.1 Technical data
Technical data with operating characteristic
curves are described in the project planning
manual for all motor types.
Additional documentation
MS2N Synchronous servomotors, project
planning manual
DOK-MOTOR*-MS2N*******-PRxx-xx-P
Technical data
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