Operation
8.4 Faults
SIMOTICS A-1FV5/1PV5 synchronous/induction motors
52
Operating Instructions, 03/2014, 610.45002.40
No.
Cause of fault
Remedial measures
L
Rotating parts are grinding
Determine cause and adjust parts
Foreign bodies within the motor
Send to manufacturer for repair
Bearing damage
Send to manufacturer for repair
M
Rotor not balanced
Decouple rotor and rebalance
N
Rotor out of true, shaft bent
Consult the manufacturer
O
Poor alignment
Align motor unit, check coupling
P
Coupled machine not balanced
Re-balance coupled motor
Q
Shocks from coupled machine
Check coupled motor
R
Imbalance originating from gearing
Adjust/repair gearing
S
Cooling water pipe / water connection
defective
Locate leaks and seal as necessary, or consult the manufacturer
If the fault still cannot be resolved after applying the measures specified above, please
contact the manufacturer or the Siemens Service Center.