Procedure
If there are deviations from normal operation or if faults occur, proceed as follows.
1. Identify the fault using the following table.
You should also take account of the messages of the converter.
Fault Fault cause
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 op‐
er
ation
D I
High temperature rise under load A C I
High temperature rise of individual wind‐
ing sections
F
Uneven running J K
Grinding sound, running noise L
Radial vibrations M N O P R
Axial vibrations O Q R
2. Rectify the fault using the following table.
No. Fault cause Remedial measures
A Overload Reduce load
B Interrupted phase in the convert‐
er line supply cable or mot
or
winding
Check the converter and converter line supply cable, meas‐
ure the winding resistance and insulation resistance, repair
after consultation with manufacturer
C Interrupted phase in the convert‐
er line supply
cable aft
er switching on
Check the converter, converter line supply cable, and the
winding resistance
D Converter output voltage too
high, frequency t
oo low
Check the settings on the converter, perform automatic
motor identication
F Winding short-circuit or phase
short-circuit in s
tator winding
Measure the winding resistances and insulation resistan‐
ces, repair after consultation with the manufacturer, re‐
place the motor if required
I Heat dissipation impeded by de‐
posits
Clean the surface of the servo drive system and ensure that
the cooling air can o
w in and out unimpeded
Cooling air inlet or outlet is
blocked b
y foreign bodies
Remove the things that block the inlet or outlet and ensure
that the cooling
air can ow in and out unimpeded
J Insucient shielding for mot
or
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 iner
tia mot
ors, replace the bearings
M Rotor not balanced Replace the motor
Corrective maintenance
13.2Service and maintenance for the motor
SINAMICS S200 PROFINET servo drive system with SIMOTICS S-1FL2
Operating Instructions, 11/2023, FW V6.3, A5E51646752B AB 601
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