Important, Shield connection only – Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual User Manual
Page 229
Publication 1797-6.5.6 - June 2005
1797-IJ2 FLEX Ex Frequency Input Module 50-3
IMPORTANT
A terminal base may or may not have an I/O module
installed.
1797- IJ2
Allen-Bradley
B
-
A
7
PWR
6
5
4
3
2
1
0
1
2 Point Frequency Input Module
FLEX Ex Frequency
Input I/O Module
LEDs
Female Bus
Connection
Field Wiring
Terminals
Terminal
Base
Terminal
Base Key
Male Bus
Connection
Key Position for
Terminal Base
Insertion
42066
Hazardous (Classified) Location
Class I, Zone 0 Group IIC
Class I, Div. 1 Groups A, B, C, D
Class II, Div. 1 Groups E, F, G
Class III, Div. 1
Hazardous (Classified) Location
Class I, Zone 1 Group IIC
Class I, Div. 1 Groups A, B, C, D
For connection to other
modules, refer to the General
FM Certification Information
on page 38-1.
1797-IJ2
16
Shield Connection Only
50
51
35
34
V
max
=5.8V
I
max
=400mA
C
i
=2.64
µF
L
i
=0
V
max
=9.5V
I
max
=1A
C
i
=0
L
i
=0
Male Bus
Connector
33
40
41
42
43
44
45
0
Female Bus
Connector
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
20
21
22
23
24
25
26
27
28
29
V
max
=28V
I
max
=93mA
C
i
=0
L
i
=0
V
max
=28V
I
max
=93mA
C
i
=0
L
i
=0
17 18 37
31 32 46
To any intrinsically safe device
or associated apparatus with
Entity Concept parameters
of V
oc
< 28V; I
sc
< 93mA.
To any intrinsically safe device
or associated apparatus with
Entity Concept parameters
of V
oc
< 28V; I
sc
< 93mA.
ch0
Freq. In
ch1
Freq. In
ch0
Gate
ch1
Gate
Any Simple Apparatus or FM
approved device with Entity
Concept parameters (V
max
,
I
max
, C
i
, L
i
) appropriate for
connection to associated
apparatus with Entity Concept
parameters listed in Table 1:
Any Simple Apparatus or I.S.
device with Entity Concept
parameters (V
max
, I
max
, C
i
, L
i
)
appropriate for connection to
associated apparatus with Entity
Concept parameters listed in
Table 1: Entity Values for Field
42486
For connection to other
modules, refer to the General
FM Certification Information
on page 38-1.
From FM approved devices,
1797-PS1N, -PS2N, or
-PS2N2.