Faults And Their Rectification - Siemens SIMOTICS S-1FK2 Operating Instructions Manual

Faults and their rectification

Operation without functioning protective devices
Operation without functioning protective devices can cause death or severe injury.
• Operate the motor, even in test operation, only with functioning protective devices.
NOTICE
Motor damage caused by faults
Faults can cause damage to the motor.
• Correct the fault cause as specified in the remedial measures.
• Repair any damage to the machine/motor.
If there are deviations from normal operation or if faults occur, proceed as follows.
• Identify the fault using the "Possible faults" table.
Also observe the converter messages.
• Try to correct the fault using the "Fault causes and remedial measures" key table.
Table 9-1
Fault
Motor does not start
Motor starts slowly
Humming sound when starting
Humming sound in operation
High temperature rise under no-load oper‐
ation
High temperature rise under load
Uneven running
Grinding sound, running noise
Radial vibrations
Axial vibrations
SIMOTICS S-1FK2 synchronous motors for SINAMICS S120
Operating Instructions, 02/2022, A5E46089564B AD
WARNING
Possible faults
Fault cause (see "Fault causes and remedial measures"
key table)
A B
A C F
C F
A C F
D I
A C I
J
9
K
L
M N O P
O Q R
R
91