Rockwell Automation 1790P-4R0 CompactBlock LDX I/O RTD/Resistance Input Module - Manual (Page 28)

Publication 1790-UM002A-EN-P
2-16 Installation and Wiring
2-Wire Potentiometer Interconnection
3-Wire Potentiometer Interconnection
Cable Shield (to Ground)
Potentiometer
RTD EXC
Return
Add Jumper
Cable Shield (to Ground)
Potentiometer RTD EXC
Return
Add Jumper
TIP
The potentiometer wiper arm can be connected to
either the EXC or return terminal depending on
whether you want increasing or decreasing resistance.
CHO_A
CHO_B
COM
CHO_A
CHO_B
COM
43254
Cable Shield (to Ground)
Potentiometer
RTD EXC
Return
Cable Shield (to Ground)
RTD EXC
Return
Sense
Run Return and sense wires from the module to
potentiometer terminal and tie terminal to one point.
CHO_A
CHO_B
COM
CHO_A
CHO_B
COM
Run Return and sense wires from the module to
potentiometer terminal and tie terminal to one point.
43255
Potentiometer