Emerson ControlWave Instruction Manual page 85

Jumper Purpose
W1 Enables/disables LEDs on
module
Wiring the Module Figure 3-31 shows field wiring assignments for locally terminated
Figure 3-30. Isolated RTD Module - 2-Wire, 3-Wire & 4-Wire Wiring Diagram
Revised Aug-2015
ControlWave I/O Expansion Rack Instruction Manual
Table 3-16. Jumper Assignments: Non-isolated HSC Module
Description
Pins 1-2 installed = Enable LEDs (Factory default).
Pins 2-3 installed = Disable LEDs
isolated RTD modules. Figure 3-32 shows field wiring assignments for
remotely terminated isolated RTD modules.
Figure 3-30 provides wiring diagrams for 2-wire, 3-wire, and 4-wire
RTDs to the local RTD module terminal blocks; wiring assignments,
such as +RTD#_3/4W, -RTD#_4W, +RTD# and –RTD# are similar to
those assigned to the Remote DIN-rail mountable terminal blocks.
Note: To maintain specified accuracy with a 3-wire RTD, you must
match the two field wires that source and sink the RTD current
within 0.01 ohms (matched in length and matched in wire type)
and the ambient temperature on these wires must be the same.
I/O Modules 3-37