Rockwell Automation 1746-INT4 Thermocouple/mV Isolated Input Module Quick Start - Manual (Page 9)

Thermocouple/mV Isolated Input Module 9
Publication 1746-QS002B-EN-P - July 2002
Wire the RTB
Use the following illustration to wire the RTB:
Cold Junction Compensation (CJC)
In case of accidental removal of one or both thermistors (part number
A40845-221-01), replace them by connecting them across the CJC terminals located
at the top and/or bottom left side of the terminal block. Always connect the red lug
to the (+) terminal (to CJC A+ or CJC B+) as shown below.
ATTENTION
!
Do not remove or loosen the cold junction compensating
thermistors located on the terminal block. Both thermistors
are critical to ensure accurate thermocouple input
readings at each channel. The module will not operate in the
thermocouple mode if a thermistor is removed
CJC A+
CJC A-
Do NOT use these
connections
CJC B+
CJC Assembly
CJC Assembly
CJC B-
Retaining Screw
Retaining Screw
Channel 0+
Channel 0-
Channel 1+
Channel 1-
Channel 2+
Channel 2-
Channel 3+
Channel 3-
n/c
spare part catalog number:
1746-RT32
Always attach red
lug to the CJC+
terminal
CJC Sensor part number
A40845-221-01