8.9.2
Faults in operation
Table 8-2
Faults in operation
Symptoms of fault
↓
General uneven running of machine
↓
Vibrating brushes
↓
High temperature rise (general)
↓
Severe brush sparking
Possible causes of faults
Remedial measures
Plant fault
X
Coupled motor out of balance
Check coupling, rebalance system
X
X
Poor alignment
Align motor set
X
X
X
Resonance in system
Improve installation conditions or reduce exci‐
tation of vibration
Operating mode or operating error
X
Continuous light-load duty (partial load)
Change number of brushes and/or material
X
Temporary overload
Correct current limit on converter
X
Continuous overload
Correct current limit on converter/reduce down
periods of rest
Cooling fault
X
Cooling air-flow rate too low (commutator temper‐
ature too high)
Improve ventilation circuit
Component defect
X
Interturn fault
Repair winding
X
X
Out-of-round commutator
Rework commutator
X
Rotor imbalance
Balance rotor
X
Bearing damage
Repair or replace bearing
Operation
8.9 Faults
SIMOTICS DC 1GH5
72
Operating Instructions 02/2016
Summary of Contents for SIMOTICS DC 1GH5
Page 2: ...08 02 2016 10 31 V4 00 ...
Page 12: ...Introduction 1 1 About these instructions SIMOTICS DC 1GH5 12 Operating Instructions 02 2016 ...
Page 50: ...Assembling 5 3 Installing the machine SIMOTICS DC 1GH5 50 Operating Instructions 02 2016 ...
Page 76: ...Operation 8 9 Faults SIMOTICS DC 1GH5 76 Operating Instructions 02 2016 ...
Page 98: ...Maintenance 9 2 Repair SIMOTICS DC 1GH5 98 Operating Instructions 02 2016 ...
Page 110: ...Spare Parts 10 7 Speed sensor SIMOTICS DC 1GH5 110 Operating Instructions 02 2016 ...
Page 114: ...Service and Support SIMOTICS DC 1GH5 114 Operating Instructions 02 2016 ...
Page 118: ...Quality documents SIMOTICS DC 1GH5 118 Operating Instructions 02 2016 ...
Page 128: ...Index SIMOTICS DC 1GH5 128 Operating Instructions 02 2016 ...
Page 129: ......