ABB IRC5 Product Manual page 75

Internal customer connection
If the cabinet is not equipped with the option external customer connection, the
signal cables must go though a cable gland and be connected to the panel board
inside the cabinet.
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A
Product manual - IRC5
3HAC047136-001 Revision: M
Cable gland
Note
The signal cable should be shielded and the shielding connected to the cable
gland, or a ferrite ring should be used around the cable inside the cabinet close
to the cable gland. The same goes for all customer I/O signals.
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2 Installation and commissioning
2.5.6 Connecting safety signals
Continued
75