Faults - Siemens 1FK7 Series Operating Instructions Manual

Operation

8.2 Faults

8.2 Faults
Note
Damage to the machine caused by faults
Correct the cause of the fault as specified in the remedial measures section. Repair any
damage to the machine/motor.
Note
When operating the motor with a converter, refer also to the operating instructions of the
frequency converter if electrical faults occur.
If there are deviations from normal operation or if faults occur, initially proceed according to
the following list. In this regard, observe the relevant chapters in the documentation
associated with the components of the complete drive system.
Even in test operation, never disable protective functions or devices.
Table 8- 1
Fault
Motor does not start
Motor starts slowly
Humming sound when starting
Humming sound in operation
High temperature rise under no-load
operation
High temperature rise under load
High temperature rise of individual
winding sections
Uneven running
Grinding sound, running noise
Radial vibrations
Axial vibrations
42
Possible faults
Cause of fault (see key table)
A B
A C F
C F
A C F
D G H I
A C G H I
F
Operating Instructions, 03/2011, 610.40700.40c
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Synchronous Motors 1FK7
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