8.9.2
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 af‐
ter 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 cir‐
cuit in stator winding
Determine the winding resistances and insulation
resistances. Carry out repair work after consulta‐
tion with the manufacturer.
X
Incorrect direction of rotation
Check the connection.
Operation
8.9 faults
SIMOTICS TN Series N-compact 1LL8
Operating Instructions 11/2018
95
Содержание SIMOTICS TN 1LL8
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Страница 12: ...Table of contents SIMOTICS TN Series N compact 1LL8 12 Operating Instructions 11 2018 ...
Страница 26: ...Description SIMOTICS TN Series N compact 1LL8 26 Operating Instructions 11 2018 ...
Страница 62: ...Assembly 5 3 Installing the machine SIMOTICS TN Series N compact 1LL8 62 Operating Instructions 11 2018 ...
Страница 98: ...Operation 8 9 faults SIMOTICS TN Series N compact 1LL8 98 Operating Instructions 11 2018 ...
Страница 132: ...Spare parts 10 14 Terminal box 1XB9600 SIMOTICS TN Series N compact 1LL8 132 Operating Instructions 11 2018 ...
Страница 136: ...Disposal 11 5 Disposal of components SIMOTICS TN Series N compact 1LL8 136 Operating Instructions 11 2018 ...
Страница 138: ...Service and Support SIMOTICS TN Series N compact 1LL8 138 Operating Instructions 11 2018 ...
Страница 142: ...Quality documents SIMOTICS TN Series N compact 1LL8 142 Operating Instructions 11 2018 ...
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