Chapter 3 – Electrical Installation
3-8 ACS/ACC/ACP 601 Frequency Converters
Cable Connections
Recommended earthing, mains and motor cable connections are
presented below. See
Appendix B – Dimensional Drawings
to locate
the terminals.
ACP 600: Control and encoder cables,
see
Appendix B
1)
2)
1) Alternative to earthing of the ACx 601 and the motor through the cable
screen.
Note:
Connecting the fourth conductor of the motor cable at the motor end
increases bearing currents, thus causing extra wear.
2) Used if the conductivity of the cable screen is < 50 % of the conductivity of
the phase conductor.
Control
cables
INPUT
OUTPUT
A2
For minimum radio frequency interference
(RFI) at the motor end, earth the cable
screen 360 degrees at the lead-through of
the motor terminal box or earth the cable by
twisting the screen (flattened width >
1/5 ·
length).
Earth the other end of the mains cable at
the distribution board.
1)
1)
/NIOCP
Frame R7:
Clamp cable lugs on the phase conductors.
Isolate the ends of the cable lugs by self-fusing
(self-amalgamating) tape.
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