Troubleshooting and fault elimination
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BA 11.5032−EN 3.0
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Troubleshooting and fault elimination
Fault
Possible cause
Remedy
Drive does not start
Voltage supply interrupted
Check connection
Faulty electrical connection
Check that supply voltage matches
nameplate data
Excessive load
Reduce load
Check drive−machine assignment
Motor runs, gearbox does not
Coupling components are missing or
defective
Check mounting
Gearbox is defective
Inform Lenze Service
Unusual running noise
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
