Troubleshooting and fault elimination9
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Lenze • BA 12.0032 • 4.0
9 Troubleshootingand fault elimination
If any malfunctions should occur during operation of the drive system, please check the
possible causes using the following table. If the fault cannot be eliminated by one ofthe
listed measures, please contact the Lenze Service.
Fault Possible cause Remedy
Drive is not running
Voltage supply interrupted Check connection
Faulty electrical connection Check that supply voltage
matches nameplate data
Excessive load Reduce load
Check drive-machine
assignment
Motor is running, but
gearbox is not running
Coupling components are missing or
defective
Check mounting
Gearbox is defective Inform Lenze Service
Clutch disengaged Engage the clutch
Unusual running noises
Overload Reduce load
Check drive-machine
assignment
Damage to the gearbox or motor Inform Lenze Service
Excessive temperature
Overload Reduce load
Check drive-machine
assignment
Inadequate heat dissipation Improve cooling air flow
Clean gearbox / motor
Lack of lubricant Top up lubricant according to
regulations
Loose fixing elements Vibrations Avoid vibrations
Operating lever collides with
path components
Operating lever incorrectly set Correctly set operating lever
Operating lever does not
switch at switch arm
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