Siemens SINAMICS S200 - Fault Causes and Remedial Measures for the Motor

SINAMICS S200 PROFINET servo drive system with SIMOTICS S-1FL2
A5E52388930A AA, 07/2023
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6.2 Fault causes and remedial measures for the motor
Possible faults
Fault
Fault cause (see the table "Fault causes and remedial measures")
Motor does not start
A
B
Motor starts slowly
A
C
F
Humming sound when starting
C
F
Humming sound in operation
A
C
F
High temperature rise under no-load operation
D
I
High temperature rise under load
A
C
I
High temperature rise of individual winding sections
F
Uneven running
J
K
Grinding sound, running noise
L
Radial vibrations
M
N
O
P
R
Axial vibrations
O
Q
R
Fault causes and remedial measures
No.
Fault cause
Remedial measures
A
Overload
Reduce load
B
Interrupted phase in the converter line
supply cable or motor winding
Check the converter and converter line supply cable, measure the
winding resistance and insulation resistance, repair after consultation
with manufacturer
C
Interrupted phase in the converter line
supply cable after switching on
Check the converter, converter line supply cable, and the winding
resistance
D
Converter output voltage too high,
frequency too low
Check the settings on the converter, perform automatic motor
identification
F
Winding short-circuit or phase short-
circuit in stator winding
Measure the winding resistance and insulation resistance, repair after
consultation with the manufacturer, replace the motor if required
I Heat dissipation impeded by deposits Clean the surface of the servo drive system and ensure that the cooling
air can flow in and out unimpeded
Cooling air inlet or outlet is blocked by
foreign bodies
Remove the things that block the inlet or outlet and ensure that the
cooling air can flow in and out unimpeded
J Insufficient shielding for motor and/or
encoder cable
Check the shielding and grounding
K
Excessive drive controller gain
Adjust the controller
L
Rotating parts are grinding
Determine cause and adjust parts
Foreign bodies inside the motor
Replace the motor
Bearing damage
For low or medium inertia motors, replace the motor; for high inertia
motors, replace the bearings
M
Rotor not balanced
Replace the motor
N
Rotor out of true, shaft bent
Consult the manufacturer
O
Poor alignment
Align motor set, check coupling
P
Coupled machine not balanced
Re-balance coupled machine
Q
Shocks from coupled machine
Check coupled machine
R
Fault originating from the gearbox
Adjust or repair the gearbox
If the fault still cannot be resolved after taking the measures stated above, please contact the manufacturer or the Siemens
Service Center.