ABB ACH550-01 User Manual page 36

ACH550-01 User's Manual
The figure below shows the grounding principles of cables.
SUPPLY CABLE
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.
Preparing for installation
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As short unshielded
e b l s i o s p a s
wires as possible
Short pigtail
Unpainted gland plate
Conductive shielding
and compression seal
MOTOR CABLE
s r e w i
Cable shielding
covered with
conductive tape
e p
EMC cable gland
Clamping nut
Continuity of
Faraday cage
t h w i d r e v e c o
t a e t i v u c d n c o
Cable
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