Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 156)

Publication 1797-6.5.6 - June 2005
32-4 1797-IJ2 FLEX Ex Frequency Input Module
Table 2: Flexbus Entity Values Which are Allowed for the Next
FLEX Ex I/O Module
Table 3: Flexbus Entity Values for this Module
Note: Any combination of up to eight FLEX Ex I/O modules may be
attached on a flexbus.
To any intrinsically safe
device or associated
apparatus with Entity
Concept parameters of V
oc
< 5.8V; I
sc
< 400mA.
To any intrinsically safe
device or associated
apparatus with Entity
Concept parameters of
V
oc
< 9.5V; I
sc
< 1A.
To any IS device with Entity
Concept parameters of
(V
max
, I
max
, C
i
, L
i
) appropriate for
connection to associated
apparatus with Entity
Concept parameters listed in
Table 2.
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 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
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
42057
Hazardous (Classified) Location
Class I, Zone 0 Groups IIC, IIB, IIA
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 Groups IIC, IIB, IIA
Class I, Div. 1 Groups A, B, C, D
Class II, Div. 1 Groups E, F, G; Class
III
Terminals V
t
(V) I
t
(mA) Groups C
a
(
µF)
L
a
(
µH)
Male Bus
Connector
5.8 400 A-G
IIC, IIB, IIA
3.0 3.0
Terminals V
max
(V) I
max
(mA)
Groups C
i
(
µF)
L
i
(
µH)
Female Bus
Connector
5.8 400 A-G
IIC, IIB, IIA
2.64 0