Input wiring recommendations, Thermocouple connections, Figure 2.14—cpc400 connector locations 28 – Watlow CPC400 User Manual
Page 42
Chapter 2: Installation
CPC400 Series User’s Guide
28
Watlow Anafaze
Doc. 0600-2900-2000
Figure 2.14 CPC400 Connector Locations
Input Wiring Recommendations
Use multicolored stranded shielded cable for analog inputs.
Watlow Anafaze recommends that you use 20 AWG wire
(0.5 mm
2
). If the sensor manufacturer requires it, you can
also use 24 or 22 AWG wiring (0.2 mm
2
). Most inputs use a
shielded twisted pair; some require a three-wire input.
The controller accepts the following inputs without any
special scaling resistors:
•
J, K, T, S, R, B and E thermocouples.
•
Process inputs with ranges between -10 and +60 mV.
To avoid thermocouple open alarms on unused inputs, ei-
ther set the Input type parameter to skip or jumper the in-
put.
Thermocouple Connections
Connect the positive lead of the thermocouple to the IN+
terminal for one of the loops, and connect the negative lead
to the corresponding IN- terminal.