8.11.2
Electrical faults
Note
If you are operating the motor with a converter, the operating instructions of the converter
must also be observed if electrical faults occur.
Table 8-1
Electrical faults
↓ Motor fails to start
↓ Motor accelerates sluggishly
↓ Rumbling noise during startup
↓ Rumbling noise during operation
↓ High temperature rise during no-load operation
↓ High temperature rise with load
↓ High temperature rise of individual winding sections
Possible causes of faults
Remedial measures
X X
X
X
Overload
Reduce the load.
X
Interrupted phase in the supply cable
Check the switches and cables.
X X
X
X
Interrupted phase in the feeder cable
after switching on
Check the switches and cables.
X
Mains voltage too low, frequency too high Check the power supply conditions.
X
Mains voltage too high, frequency too low Check the power supply conditions.
X X X
X
X Stator winding incorrectly connected
Check the winding connection in the terminal box.
X X
X
X Winding short circuit or phase short
circuit in stator winding
Determine the winding resistances and
insulation resistances. Carry out repair work after
consultation with the manufacturer.
X
Incorrect direction of rotation
Check the connection.
Operation
8.11 faults
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2014
97
Содержание 1LA8
Страница 2: ...23 05 2014 10 18 V8 00 ...
Страница 12: ...Table of contents SIMOTICS TN Series N compact 1LA8 12 Operating Instructions 05 2014 ...
Страница 14: ...Introduction 1 1 About these instructions SIMOTICS TN Series N compact 1LA8 14 Operating Instructions 05 2014 ...
Страница 60: ...Assembly 5 3 Installing the machine SIMOTICS TN Series N compact 1LA8 60 Operating Instructions 05 2014 ...
Страница 88: ...Start up 7 7 De energizing SIMOTICS TN Series N compact 1LA8 88 Operating Instructions 05 2014 ...
Страница 100: ...Operation 8 11 faults SIMOTICS TN Series N compact 1LA8 100 Operating Instructions 05 2014 ...
Страница 173: ...AC Declaration of conformity 1LA8 area 22 AA KE NSR _1LA8_1PQ8_1PP8_1LP8 ...