Lenze GSS - Manual (Page 77)

Troubleshooting and fault elimination 9
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77 BA 12.0023−EN 7.0
9 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
Shrink disc connection is
spinning l Correct screw tightening torque has
not been reached
– Insufficient number of passes, not
all screws are tightened correctly.
l Machine shaft and hollow shaft bore
not sufficiently degreased
l Wrong component part dimensions
– Fits, roughnesses
l Yield point of machine shaft material
is too low
– Re > 300 N/mm
2 required
l Friction factors are too low
– Coefficients of friction
m ³ 0.15
required
l The shrink disc itself has been
degreased so that the screws and the
bevels are dry. Due to incorrect
friction factors, the shrink disc cannot
be tightened correctly.
Specifications for assembly, dimensions
and material not observed