Chapter 26, 1797-ie8 flex ex 8 input analog module, General information – Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual User Manual
Page 121: Module installation, Inputs, Wiring to a 1797-tb3 or -tb3s terminal base unit, Chapter, Connect wiring to the terminal base as shown below
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Publication 1797-6.5.6 - June 2005
Chapter
26
1797-IE8 FLEX Ex 8 Input Analog Module
General Information
Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.
Module Installation
Rotate keyswitch on terminal base unit clockwise to position 3 as required for
this type of module. Do not change the position of the keyswitch after
wiring the terminal base unit.
Inputs
Each input can be operated from an analog field device signal. Do not apply
any non-intrinsically safe signals to this module.
The channels in this module are electrically connected to each other and have a
common plus-line.
Wiring to a 1797-TB3 or
-TB3S Terminal Base Unit
Connect wiring to the terminal base as shown below.
IMPORTANT
When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.
Row A
Row B
Row C
+
-
+
-
+
-
+
-
Ch 7
Ch 6
Ch 5
Ch 4
+V -V
+V -V
40071
sig
sig
sig
sig
No connection
allowed
No connection
allowed
Ch 7
+
-
+
-
+
-
+
-
Ch 2
Ch 1
Ch 0
sig
sig
sig
sig
Ch 3
0
1
2
3
4
5
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