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Connection information
Note
The overall system compatibility is only guaranteed when shielded power cables are used.
Shields must be incorporated in the protective grounding concept. Protective ground should
be connected to conductors that are open-circuit and that are not being used and also
electrical cables that can be touched. If the brake feeder cables from the SIEMENS cable
accessories kit are not used, then the brake conductor cores and shields must be connected
to the cabinet ground (open-circuit cables result in capacitive charges!)
Before carrying out any work on the motor, please ensure that it is powered down and the
system is locked out so that the motor cannot re-start!
Please observe the rating plate data and circuit diagram in the terminal box.
● Twisted or three-core cables with additional ground conductor should be used for the
● The connecting cables should be freely arranged in the terminal box so that the protective
● Make sure that the minimum air clearances specified below are maintained: Supply
● After connecting up, the following should be checked
1PM6/1PM4 Hollow-Shaft Motors for Main Spindle Drives
Configuration Manual, PPMS, 04/2008, 6SN1197-0AD23-0BP0
WARNING
motor feeder cables. The insulation should be removed from the ends of the conductors
so that the remaining insulation extends up to the cable lug or terminal.
conductor has an overlength and the cable conductor insulation cannot be damaged.
Connecting cables should be appropriately strain relieved.
voltages up to 500 V: Minimum air clearance 4.5 mm
– The inside of the terminal box must be clean and free of any cable pieces
– All of the terminal bolts must be tight (tightening torques, refer to the operating
instructions)
– The minimum air clearances must be maintained
– The cable glands must be reliably sealed
– Unused cable glands must be closed and the plugs must be tightly screwed in place
– All of the sealing surfaces must be in a perfect condition
Connection methods
6.1 Motor power connection
81
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