ABB ACS880-04F, Руководство по оборудованию, Страница: 65 / 172

Guidelines for planning the electrical installation 65
Note : Do not install 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 braking system
See chapter Resistor braking .
Selecting the control cables

Shielding
All control cables must be shielded.
Use a double-shielded twisted pair cable for analog signals. We recommend this type of
cable for the pulse encoder signals also. Employ one individually shielded pair for each
signal. Do not use common return for different analog signals.
A double-shielded cable (figure a below) is the best alternative for low-voltage digital
signals but single-shielded (b) twisted pair cable is also acceptable.

Signals in separate cables
Run analog and digital signals in separate, shielded cables. Never mix 24 V DC and
115/230 V AC signals in the same cable.

Signals allowed to be run in the same cable
Relay-controlled signals, providing their voltage does not exceed 48 V, can be run in the
same cables as digital input signals. The relay-controlled signals should be run as twisted
pairs.

Relay cable type
The cable type with braided metallic screen (for example ÖLFLEX by LAPPKABEL,
Germany) has been tested and approved by ABB.
a b