Preparing for installation
31
ACH550-01 User's Manual
The figure below shows the grounding principles of cables.
At the motor end, the motor cable shield must be grounded 360
degrees with an EMC cable gland, or the shield wires must be
twisted together into a bundle (pigtail) not longer than five times
its width and connected to the PE terminal of the motor. The
same principle applies to cabinet installations.
wires as possible
covered with
conductive tape
As short unshielded
wires as possible
SUPPLY CABLE
MOTOR CABLE
Short pigtail
Cable shielding
covered with
conductive tape
Unpainted gland plate
EMC cable gland
Clamping nut
Cable
Continuity of
Faraday cage
Conductive shielding
and compression seal
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