ABB ACS880-1604, Hardware Manual

Page: 76 / 222

76 Electrical installation
Connecting the control cables

Default I/O connection diagram
See chapter Control unit on page 161 .
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Connection procedure
Note: The instructions below are based on an example cabinet construction. They are not
applicable to all possible solutions but only clarify the principles.
The following procedure instructs how to connect the control cables of a DC/DC converter
unit. In the example, the power cables are routed to the cabinet through the bottom. Note
that the figures in the procedure are examples.
WARNING! Repeat the steps described in section Electrical safety
precautions on page 66 . The complete safety instructions are given in
Safety instructions for ACS880 multidrive cabinets and modules
(3AUA0000102301 [English]). Ignoring the instructions can cause physical injury or death,
or damage to the equipment.
1. Open the cubicle door.
2. Remove the shrouds (if any) from the cubicle.
3. Run the cables into the cabinet. If possible, arrange for a 360° grounding of the cable
shield at the cable entry through.
If the outer surface of the shield is non-conductive, turn the shield inside out as shown
below and wrap copper foil around the cable to keep the shielding continuous. Do not
cut the grounding wire (if present).
4. Run the cables to the appropriate terminals. Wherever possible:
•
Use the existing cable trunking in the cabinet.
•
Use sleeving wherever the cables are laid against sharp edges.
•
Tie the cables to provide strain relief.
5. Cut the cables to suitable length.
Cable shield
Shielded twisted pair
Grounding wire
Copper foil
Stripped cable Conductive surface of
the shield exposed
Stripped part covered
with copper foil