ABB ACS880-07, Hardware Manual

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1 3 4 5 2
Insulation jacket 1
Helix of copper tape or copper wire 2
Copper wire screen 3
Inner insulation 4
Cable core 5
￭ Additional US requirements
Use type MC continuous corrugated aluminum armor cable with symmetrical grounds or
shielded power cable for the motor cables if metallic conduit is not used. For the North
American market, 600 V AC cable is accepted for up to 500 V AC. 1000 V AC cable is
required above 500 V AC (below 600 V AC). For drives rated over 100 amperes, the power
cables must be rated for 75 °C (167 °F).
Conduit
Couple separate parts of a conduit together: bridge the joints with a ground conductor
bonded to the conduit on each side of the joint. Also bond the conduits to the drive enclosure
and motor frame. Use separate conduits for input power, motor, brake resistor, and control
wiring. When conduit is employed, type MC continuous corrugated aluminum armor cable
or shielded cable is not required. A dedicated ground cable is always required.
Note:
Do not run motor wiring from more than one drive in the same conduit.
Armored cable / shielded power cable
Six conductor (3 phases and 3 ground) type MC continuous corrugated aluminum armor
cable with symmetrical grounds is available from the following suppliers (trade names in
parentheses):
• Anixter Wire & Cable (Philsheath)
• BICC General Corp (Philsheath)
• Rockbestos Co. (Gardex)
• Oaknite (CLX).
Shielded power cables are available from Belden, LAPPKABEL (ÖLFLEX) and Pirelli.
Planning the resistor braking system
See chapter Resistor braking.
Selecting the control cables
￭ Shielding
All control cables must be shielded.
Guidelines for planning the electrical installation 85