ABB ACH550 Bedienungsanleitung Seite 36

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32 Preparing for installation
ACH550 User's Manual
Control cables
General recommendation
Use shielded cables, temperature rated at 60ºC (140ºF) or
above.
The following figure shows examples of recommended cables.
Figures courtesy of NK cables. Copyright © 2003 NK cables.
Control cables must be multi-core cables with a braided
copper wire screen.
The screen must be twisted together into a bundle not longer
than five times its width and connected to terminal X1-1 (for
digital and analog I/O cables) or to either X1-128 or X1-32
(for RS485 cables).
Route control cables to minimize radiation to the cable:
Route as far away as possible from the input power and
motor cables (at least 20 cm (8 in)).
Where control cables must cross power cables make sure
they are at an angle as near to 90º as possible to minimize
interference.
Keep at least 20 cm (8 in) away from the sides of the drive.
Run relay-controlled signals as twisted pairs (especially if
voltage > 48 V). Relay-controlled signals using less than 48 V
can be run in the same cables as digital input signals.
Jamak by Draka NK Cables
Nomak by Draka NK Cables
00Template.book Page 32 Friday, January 2, 2004 2:55 PM
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