DC motor - Siemens, s.r.o.
DC motor - Siemens, s.r.o.
DC motor - Siemens, s.r.o.
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Operation<br />
Overview - faults with the commutator<br />
material of brushes<br />
X Temporary overload Correct current limit<br />
X Overload at standstill Correct current limit / shorten<br />
standstill time<br />
Cooling fault<br />
X Cooling air too moist Change routing of cooling air<br />
X X Cooling air chemically aggressive Change routing of cooling air<br />
X Cooling air too dusty Change routing of cooling<br />
air, use air filter<br />
X Cooling-air rate too high (commutator<br />
temperature too low)<br />
Brush fault<br />
Restrict air intake (if nec.<br />
change brush material)<br />
X Incorrect or unsuitable brush material Change brush material<br />
X Brushes not in neutral zone Correct adjustment<br />
Component fault<br />
X Break in armature winding Repair winding<br />
X Defective soldered joint Resolder joint<br />
X X Distorted commutator Rework commutator<br />
X Conductive inclusions in segment slots Mill out segment insulation<br />
[ID 566]<br />
<br />
SIEMENS AG T61160347010001 (DMHO V9)<br />
5-8 Operating instructions 1GG6286-0NA4.-1VV1-Z
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