ABB ACS880-07 - Connecting the Control Cables; Control Cable Connection Procedure; Grounding the Outer Shields of the Control Cables 360° at the Cabinet Entry

Connecting the control cables
See chapter Control units of the drive (page 143) for the default I/O connections of the
inverter unit (with the ACS880 primary control program). The default I/O connections
can be different with some hardware options. See the circuit diagrams delivered with
the drive for the actual wiring. For other control programs, see their firmware manuals.
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Control cable connection procedure
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or
death, or damage to the equipment can occur.
1. Do the steps in section Electrical safety precautions (page 21) before you start
the work.
2. Run the control cables into the cabinet as described in section Grounding the
outer shields of the control cables 360° at the cabinet entry (page 120).
3. Route the control cables as described in section Routing the control cables inside
the cabinet (page 122).
4. Connect the control cables as described in section Connecting control
cabling (page 122).
Grounding the outer shields of the control cables 360° at the cabinet entry
Ground the outer shields of all control cables 360° with the EMI conductive cushions
at the cabinet entry. The grounding principle is the same for top and bottom entry
cables. The figures show the bottom entry. The actual design details can vary.
1. If necessary, remove the shrouding in front of the cable entry.
2. Put the cables in sequence from the smallest to the largest. This will help to achieve
a good contact with the cushions.
3. Loosen the tightening bolts of the EMI conductive cushions and pull them apart.
4. Cut holes in the grommets and put the cables through the grommets.
5. Peel the insulation from the part of the cable that will be in contact with the EMI
conductive cushion.
6. Put the cables between the cushions and attach them with cable ties for strain
relief.
7. Move the cushions back together.
8. Tighten the bolts to make sure that the EMI conductive cushions press tightly
around the peeled part of the cables.
120 Electrical installation