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DOK-MOTOR*-MSK*EXGIIK3-PR09-EN-P
Synchronous Servomotors MSK For Potentially Explosive Areas
14.5
Information in case of malfunctions
Malfunction
Motor does not run
Vibrations
Running noise
High motor temperatures
Motor temperature monitoring is activa‐
ted
WARNING
Before starting work on live parts: Disconnect the machine from the power
supply and secure the mains switch against unintentional or unauthorized re‐
connection.
Check whether the voltage has fallen below 50 V before touching live parts!
WARNING
Let the motor cool down, before maintenance. The thermal time constant sta‐
ted in the technical data is a measure for the cooling time. A cooling time up
to 140 minutes can be necessary!
Do not work on hot surfaces.
Use safety gloves.
In the event of faults, always observe the information in the project planning
and commissioning instructions. If necessary, contact the manufacturer
ter 17 "Service and support" on page
Error cause
Controller enable signal missing
Controller fault
Voltage supply missing
Brake is not released
Coupling elements or attachments are
poorly balanced
Adjustment of shaft end attachments
(coupling, gearbox, ...) is insufficient
Mounting screws loose
Foreign bodies within the motor
Bearing is damaged
Operation outside the parameters
Heat dissipation obstructed
Bosch Rexroth AG
Commissioning, operation and maintenance
Fatal electric shock from live parts with more
than 50 V!
Combustions via hot surface with tempera‐
tures over 100 °C
171.
Measures
Activate controller enable signal
Troubleshoot acc. to documentation of
controller
Control voltage supply
Check the brake activation
Re-balance
Re-align the attachments
Lock screw connections acc. to specifi‐
cations
Stop the motor --> repair by manufactur‐
er
Stop the motor --> repair by manufactur‐
er
Reduce load
Clean the motor
For fan units, clean fan grille and check
the fan function
For liquid cooling, check cooling circuit.
161/175
chap‐
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