Watlow CAS - Manual (Page 23)

Installation
CAS User’s Guide 13
General Wiring Recommendations
Use the cables below or their equivalent. For best results, use
appropriate materials, proper installation techniques and the correct
equipment. For example, choose wire type by function, installation
requirements, and the likelihood of mechanical or electrical problems at
your installation.
WARNING
Never wire bundles of low power Watlow Anafaze circuits next
to bundles of high power AC wiring. Always physically sepa-
rate high power circuits from the monitor. If possible, install
high voltage AC power circuits in a separate panel.
• Use stranded wire. (Use solid wire for fixed service only).
• Use #18 or #20 AWG wire. Larger or smaller sizes may be difficult
to install, may break easily, or may cause intermittent connections.
• Use shielded wire. (The electrical shield helps protect the CAS from
electrical noise.) Connect one end of the input wiring shield to the
CAS panel's 120 Vac panel ground, and connect one end of the out-
put wiring shield to the CAS panel's 120 Vac panel ground. If these
instructions do not apply to your system, contact Watlow Anafaze
for more information.
For additional noise suppression measures, see Noise Suppression.
Function MFR P/N
No. of
Wires
AWG
Analog inputs Belden #9154
Belden #8451 2
2 20
22
Thermocouple inputs Thermocouple
extension wire 2 20
Digital I/O Belden #9539
Belden #9542
Ribbon Cable 9
20
50 24
24
Computer
Communication:
RS-232 or RS-485 Belden #9729
Belden #9730
Belden #9842
Belden #9843 4
6
4
6 24
24
24
24