Rockwell Automation 1769-IT6 Compact I/O Thermocouple/mV Input Module - Manual (Page 15)

Compact I/O Thermocouple/mV Input Module 15
Publication 1769-IN026C-EN-P - February 2010
Terminal Block with CJC Sensors and Thermocouple Junctions
Ground the Thermocouple/mV Input Module
This product is intended to be mounted to a well-grounded mounting surface, such as a metal
panel. Additional grounding connections from the module’s mounting tabs or DIN rail (if
used) are not required unless the mounting surface cannot be grounded. Refer to Industrial
Automation Wiring and Grounding Guidelines, publication
1770-4.1 , for additional
information.
TIP
When using an ungrounded thermocouple, the shield must be connected to ground at the
module end.
IMPORTANT
When using grounded and/or exposed thermocouples that are touching electrically
conductive material, the ground potential between any two channels cannot exceed
±10V DC, or temperature readings will be inaccurate and the module may be damaged.
NC
IN 0+
IN 0-
IN 3+ IN 1 +
IN 3- IN 1-
IN 4+
IN 2+
IN 4-
IN 2-
IN 5+
IN 5-
NC
+
-
+
-
+
-
CJC 0+
CJC 0-
CJC 1-
CJC 1+
Within 10V DC
CJC Sensor
Grounded Thermocouple
Ungrounded
Thermocouple
CJC Sensor
Grounded Thermocouple