Mechanical properties
3.5 Service and inspection intervals
1FW6 High Speed built-in torque motors
Configuration Manual, 01/2020, 6SN1197-0AE03-0BP3
67
Intervals between maintenance
Since operating conditions differ greatly, it is not possible to specify intervals between
maintenance work.
Indications that maintenance work is required
●
Dirt in the motor cabinet
●
Distinctive changes in the behavior of the machine
●
Unusual sounds emitted by the machine
●
Problems with positioning accuracy
●
Higher current consumption
3.5.3
Checking the insulation resistance
Notes for checking the insulation resistance
WARNING
Risk of electric shock
If you check the insulation resistance using high voltage on a plant/machine equipped with
direct drives or directly at the motors, this can damage the motor insulation! Examples
necessitating that the insulation resistance is checked include the installation test,
preventive maintenance and troubleshooting.
•
Only use test equipment that is in compliance with EN 61557-1, EN 61557-2 and
EN 61010-1 or the corresponding IEC standards.
•
The test may only be carried out with a maximum direct voltage of 1000 V for a
maximum time of 60 s!
•
Measure the insulation resistance with respect to the PE connection or the motor
enclosure.
•
If a higher DC or AC voltage is necessary to test the machine/plant, you must coordinate
the test with your local Siemens office!
•
Carefully observe the operating instructions of the test equipment!
Always proceed as follows when testing the insulation resistance of individual motors:
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