Rockwell Automation 1746-NR4 SLC RTD/Resistance Input Module User Manual - Manual (Page 28)

Publication 1746-UM008B-EN-P - December 2006
28 Quick Start Guide
Three-wire Potentiometer Connections to Terminal Block
Configure Your I/O
Configure your system I/O configuration for the particular slot where
the RTD module resides (slot 1 in this example). Select the 1746-NR4
module from the list of modules, or if it is not listed in your software
version, select Other and enter the RTD module ID code (3513) at the
prompt on the I/O configuration display.
For more information refer to chapter 4, Preliminary Operating
Considerations.
For details on wiring an RTD to the module, see chapter 3.
Shield
Chl 0 RTD
Chl 0 Sense
Chl 0 Return
RTD
Return
Sense
Belden #83503 or Belden #9533 Shielded Cable
Cable Shield Run RTD unit and sense wires from module to
potentiometer terminal and tie them to one point.
Potentiometer
Potentiometer
Cable Shield
Run RTD and sense wires from module to
potentiometer terminal and tie them to one point.
Belden #83503 or Belden #9533 Shielded Cable
Shield
Chl 0 RTD
Chl 0 Sense
Chl 0 Return
RTD
Return
Sense
Potentiometer wiper arm can be connected to either the RTD or return terminal
depending on whether you want increasing or decreasing resistance.