Malfunctions TPM
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en-24 4022-D018396 Revision: 07
8 Malfunctions
Changed operational behavior can be an indication of existing damage
to the servo actuator, or cause damage to the servo actuator.
Do not put the servo actuator back into operation until the cause of the
malfunction has been rectified.
Rectifying of malfunctions may only be done by specially trained
technicians.
To facilitate troubleshooting and the optimization of controller settings, it is
useful to record the current over a full cycle (a servo controller function) and
make it available as a file.
Fault Possible cause Solution
Increased operating
temperature
Selected construction too
weak for task, nominal
operating exceeded.
Check the technical specifications.
Motor is heating the
gearhead.
Check the controller's settings.
Ambient temperature too
high.
Ensure adequate cooling.
Increased operating
noises
Damaged bearings Consult our Customer Service
department.
Damaged gear teeth
Loss of lubricant Lubricant quantity too high Wipe off discharged lubricant and
continue to watch the gearhead.
Lubricant discharge should stop
after a short time.
Seals not tight Consult our Customer Service
department.
Motor does not start Power supply interrupted Check the connections
Wiring of motor and / or
encoder not correct
Check the wiring of the motor
phases and the motor encoder
Blown fuse Check for errors and replace the
fuse
Incorrect controller
parameters
Check that the motor parameters
are suitable for the implemented
servo actuator
Motor protection has been
triggered
Check for errors. Check whether the
motor protection setting is correct.
Wrong direction of
rotation
Wrong set value
specification for the servo
controller
Check servo controller/converter.
Check the set value specifications
and the polarities
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