Performing A Trial Run; Checking The Insulation Resistance - Siemens SIMOTICS A-1FV5 Operating Instructions Manual

Roller bearings
If the motor has been stored under favorable conditions (i.e. in a dry, dust-free room that is
not susceptible to vibration) for more than three years, the bearings must be replaced.
Note
Unfavorable conditions
If the motor was stored under unfavorable conditions, the bearings need to be replaced after
approx. 18 months.
7.2

Performing a trial run

Danger from rotating rotor
Implement shock-hazard protection measures for output elements. Take suitable measures
to ensure that feather keys (if used) cannot fall out.
7.3

Checking the insulation resistance

After long storage or shutdown periods, the insulation resistance of the windings must be
measured to ground with direct voltage.
Work on power installations must only be carried out by specialists. Before measuring the
insulation resistance, read the manual for the insulation resistance meter you are going to
use.
Danger! High voltage
During and immediately after the measurement, hazardous voltage levels may be present.
Touching live components can be result in death or serious injury.
Never touch the terminals when measuring or immediately after the measurement.
Check the connected supply feeder cables to ensure that the line supply voltage cannot be
connected.
SIMOTICS A-1FV5/1PV5 synchronous/induction motors
Operating Instructions, 03/2014, 610.45002.40
WARNING
WARNING
WARNING
Commissioning
7.2 Performing a trial run
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