12
Troubleshooting
12.1
Procedure
In principle, heed the notice about malfunctions in the project planning man‐
ual and the commissioning manual. If necessary, the manufacturer must be
contacted.
Malfunction
Failure cause
Measures
The motor does not
run
Drive enable is missing
Activate the drive enable
Controller fault
Troubleshooting according to the documenta‐
tion of the controller
Supply voltage is missing
Check the supply voltage
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 are loose
Tighten and secure screw connections accord‐
ing to the specifications.
Running noise
Foreign bodies within the motor
Stop operation of the motor -> repair by manu‐
facturer
Bearing is damaged
Stop operation of the motor -> repair by manu‐
facturer
High motor tempera‐
ture
Motor
temperature
monitoring unit re‐
sponds
Operation outside of characteristic data
Reduce the load, check the sizing if necessary
Heat dissipation is impaired
Clean the motor
Clean the grille of the fan unit and check the
function of the fan
Check the coolant circuit of liquid cooling sys‐
tems
Wrong or incorrect
temperature displayed
Temperature sensor not connected
Connect the temperature sensor
Temperature sensor is defective
Connect backup temperature sensor
Stop operation of the motor -> repair by manu‐
facturer
Fig.12-1:
Procedure troubleshooting
DOK-MOTOR*-2AD********-IT01-EN-P
Rexroth 2AD Asynchronous Housing Motors
Bosch Rexroth AG
53/61
Troubleshooting
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com
