Operation
8.6 Stoppages
WOGeneric TEAAC / 2008
42 Siemens AG Operating Instructions 1.03 1RQ671...-Z
8.6 Stoppages
Rolling-contact bearings
● Operate the motor regularly, at least once monthly, in the event of downtimes lasting
more than 1 month, for approximately one minute. Alternatively, turn the rotor as a
minimum. If a rotor shipping brace has been fitted to the machine, remove it before you
spin the rotor.
CAUTION
Damage to the bearings of rolling contact bearing motors when stored over a long
period.
Remaining in the same or almost the same position can damage the rolling contact
bearings.
Turn the rotor at the intervals specified. Ensure that the bearings then come to rest in a
position different from that they were in before. Use the feather key as a reference point.
● Please refer to the section "Energizing" before restarting the motor.
CAUTION
Storing rolling contact bearing motors for longer than six months
If the motor is not to be used for a period in excess of six months, suitable anti-
corrosion, mothballing, packaging and drying measures must be taken.
[ID 128.03.01]
See also
Storage (Page 17)
Switch on (Page 41)
8.7 Faults in operation
Note
In the event that electrical faults occur while operating the motor with a converter, please
also refer to the converter operating instructions.
The tables below list general faults caused by mechanical and electrical influences.
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