Fault Tables - Siemens SIMOTICS SD Operating Instructions Manual

Operation

8.3 Fault tables

8.3 Fault tables
Note
Before removing any faults, please read the information in Chapter Safety information
(Page 11).
Note
If you operate the motor with a converter, and an electrical fault occurs, then also observe
the information in the converter operating instructions.
The tables below list general faults caused by mechanical and electrical influences.
Table 8- 1 Electrical influences
↓
↓
↓
↓
↓
↓
X X X X
X
X X X X
X X
X
X X X X
X X X
X
(1) As well as eliminating the cause of the fault (as described under "Remedial measures"),
you must also rectify any damage the machine may have suffered.
78
Electrical fault characteristics
Machine will not start up
Machine starts up reluctantly
Rumbling noise during startup
Rumbling noise during operation
Overheating during no-load operation
Overheating when under load
↓ Overheating of individual winding sections
Possible causes of faults
Overload
Interruption of a phase in the supply line
X Interruption of a phase in the supply line
after switching on
Supply voltage too low, frequency too
high
Supply voltage too high, frequency too
low
X Stator winding incorrectly connected
X Winding short circuit or phase short
circuit in stator winding
Incorrect direction of rotation of axial fan
Remedial measures
1)
Reduce load
Check switches and supply lines
Check switches and supply lines
Check power supply conditions
Check power supply conditions
Check winding connections
Measure the winding resistances and insulation
resistances, repair after consultation with
manufacturer
Check connections
Operating Instructions, 05/2014, 5 610 00000 02 000
Low-voltage motors