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

Faults and their rectification

Danger to life for 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.
Risk of vertical axes dropping as a result of a defective gearbox
If you use the geared motor to drive vertical axes, a defective gearbox can cause parts and
components to fall resulting in death or severe injury.
• Only use intact geared motors.
• Observe any unusual geared motor noise.
NOTICE
Damage to the geared motor caused by faults
Faults can cause damage to the geared motor.
• Correct the cause of the fault as specified in the remedial measures.
• Repair any damage that has occurred at the machine/motor/gearbox.
Note
On occurrence of electrical faults, observe the notes in the frequency converter documentation.
• If any deviations occur with respect to normal operation or if faults occur, proceed initially
according to the list of possible faults.
• In this regard, observe the relevant chapters in the documentation associated with the
components of the complete drive system.
The following table shows possible faults.
Possible faults
Fault
Geared motor fails to start
Geared motor only starts slowly with dif‐
ficulty
Humming sound when starting
Humming sound in operation
Planetary gearboxes for servomotors
Operating Instructions, 09/2023, A5E50494253B AC
WARNING
WARNING
Fault cause (see "Fault causes and remedial measures" key
table)
A B
A C F
C F
A C F
8
T
T
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