Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 228)

Publication 1797-6.5.6 - June 2005
50-2 1797-IJ2 FLEX Ex Frequency Input Module
Intrinsically Safe
Specifications For a full list of specifications, refer to FLEX Ex Frequency Input Module
Installation Instructions, publication 1797-5.7.
FM Input I/O Entity
Parameters Wiring Methods
• Wiring method 1 - Each channel is wired separately.
• Wiring method 2 - Multiple channels in one cable, providing each
channel is separated in accordance with the National Electric Code
(NEC).
Table 1: Entity Values for Field Device Connections
Operating Temperature -20 to +70 o C (-4 to +158 o F)
Agency Certification Class I Division 1 Groups A-D T4
Class I Zone 1 AEx ib/[ia] IIC T4
Certificates FM Certificate Number 3009806
FM
Wiring
Method
Channel Terminals V
oc
(V)
I
sc
(mA)
V
t
(V)
I
t
(mA)
Groups C
a
(
µF)
L
a
(mH)
1 and 2 Any one
channel
6, 7;
9, 8;
23, 24
26, 25
14.7 15.0 - - A, B 0.65 130.0
C, E 1.95 390.0
D, F, G 5.20 1040.0
1 and 2 Any one
channel
5, 3;
10, 12;
22, 20;
27, 29
14.7 10.0 - - A, B 0.65 300.0
C, E 1.95 900.0
D, F 5.20 2400.0
1 and 2 Any one
channel
5, 3, 6, 4;
10, 12, 9, 11;
22, 20, 21, 23;
27, 29, 26, 28
14.7 10.0 - - A 0.65 300.0
C, E 1.95 900.0
D, F, G 5.20 2400.0
1 and 2 Any one
channel
0, 2, 3;
1, 2, 3;
14, 12, 13;
15, 12, 13
26.5 82.0 - - A, B 0.13 4.5
C, E 0.39 13.5
D, F, G 1.04 36.0
Wiring
Method
Channel Terminals V
max
(V)
I
max
(mA)
Groups C
i
(
µF)
L
i
(mH)
1 and 2 Any one
channel
17, 18, 37
or
31, 32, 46
28 93.0 A, B 0 0
C, E 0 0
D, F, G 0 0