Emerson ControlWave User Manual

ControlWave Instruction Manual (CI-ControlWave)
3.9 Isolated Resistance Temperature Device (RTD) Input Module
RTD Input modules provide a total of four inputs. Firmware detects the
RTD type (2-, 3- or 4 wire) via the installation of jumper wires on the
terminal block for 2-wire and 3-wire RTDs (see Figure 3-30).
Table 3-13. Isolated RTD Input Module General Characteristics
Type Number
Supported
Characteristics
Isolated RTD
Input
4
Each isolated RTD input
supports/includes:
 Signal conditioning circuitry
 Surge protection with a 25V transorb
that meets IEEE standard 472-1978
 Current limiting for over voltage
protection
 24-bit analog to digital converter (ADC)
 Common mode range of 500V with
respect to chassis
 Electrical isolation of 500Vdc (channel
to channel/system bus)
 Source current to RTD limited to 330
uA
The RTD Input Module consists of an isolated RTD input board, a
terminal board assembly (for local termination) or a header block
assembly (for remote termination), an LED board, a terminal housing
assembly, as well as I/O assembly and mounting hardware.
Detailed Technical
Specifications
For additional technical specifications, please see document CWPAC
available on our website http://www.emersonprocess.com/remote.
Configuration
The isolated RTD module (general part number 396878-XX-X) has the
following configurations
Table 3-14. Isolated RTD Input Module Configurations
Part Number Termination Connector Notes
396878-01-6
local
396878-02-4
remote
Enabling/Disabling
LEDs using jumper
The Isolated RTD Module includes a jumper (W1) to enable/disable
LEDs on the module. Normally, you should keep the LEDs enabled,
but if power conservation is an issue, you could disable the LEDs.
Revised Nov-2010 I/O Modules 3-35

Emerson ControlWave Specifications

General

Brand	Emerson
Model	ControlWave
Category	I/O Systems
Language	English