Lenze GKK - Manual (Page 26)

Troubleshooting and fault elimination 8
26 BA 12.0032-EN 2.0
8 Troubleshooting and 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 of the
listed measures, please contact the Lenze Service.
Fault Possible cause Remedy
Drive does not turn Voltage supply interrupted Check connection
Incorrect electrical connection Check if nameplate matches voltage supply
Excessive load Reduce load
Check drive-machine assignment
Motor running, gearbox at
standstill
Fixing elements are missing or
defective
Check attachment
Gearbox is defective Contact Lenze Service
Clutch disengaged Engage the clutch
Unusual running noises Overload Reduce load
Check drive-machine assignment
Damage in the gearbox or
motor
Contact Lenze Service
Excessive temperature Overload Reduce load
Check drive-machine assignment
Insufficient heat dissipation Improve cooling air supply
Clean gearbox / motor
Insufficient lubricant Refill lubricant as specified
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