Rockwell Automation 1746-NR4 SLC RTD/Resistance Input Module User Manual - Manual (Page 17)

Publication 1746-UM008B-EN-P - December 2006
Overview 17
RTD Module Hardware
General Diagnostic Features
The RTD module contains diagnostic features that can be used to help
you identify the source of problems that may occur while you turn on
the power or during normal channel operation.
The power and channel diagnostics are explained in Chapter 7,
Module Diagnostics and Troubleshooting.
SLC 500
CA
T SERIAL
NO.
INPUT
RTD/resistance INPUT MODULE
INPUT
SIGNAL
RANGES
RESIST
ANCE:
CHL 1
SHIELD
SHIELD
CHL 0
RT D
SHIELD
SER FRN
)
U
L
LISTED IND. CONT
. EQ.
FOR HAZ. LOC.
A196
CLASS I, GROUPS
A, B,
C
AND D, DIV
.2
OPERA
TING
)
SA
R TD TYPES:
TEMPERA
TURE
CODE T3C
MODULE ST ATUS
0
1
2
3
CHANNEL
STATUS
RTD/resistance
1746 NR4 NR4±xxx x
RT D CHL 0
SENSE
CHL 1
SENSE CHL 0
RETRN CHL 1
RETRN
SHIELD
CHL 3
CHL 2
RT D
RT D CHL 2
SENSE
CHL 3
SENSE CHL 2
RETRN
CHL 3
RETRN
SHIELD
SHIELD
PLA
TINUM, COPPER
NICKEL, NICKEL±IRON
150
W
,
500
W
,
1000
W
,
3000
W
1
2
3
4
5
6
7
Hardware Features
Feature Description
1 Channel Status LED Indicators
(green) Display operating and fault status of
channels 0, 1, 2, and 3
2 Module Status LED (green) Displays module operating and fault status
3 Removable Terminal Block Provides physical connection to input devices
4 Cable Tie Slots Secure wiring from module
5 Door Label Provides terminal identification
6 Side Label (Nameplate) Provides module information
7 Self-locking Tabs Secure module in chassis slot