Rockwell Automation 1797-IJ2 FLEX Ex Frequency Input Module - Manual (Page 19)

FLEX Ex Frequency Input Module 19
Publication 1797-5.9 - June 2010
Channel 1 Frequency Input
Field devices may only be connected to the terminals of one of the five
following circuits. The terminals of the remaining four circuits must not be
connected.
Namur/
Contact
(Terminals
9…8)
Protection Group Allowed
Capacitance
Allowed
Inductance
L
o
R
o
Ratio
U
o
= 14.7V
I
o
= 15 mA
P
o
= 30 mW
Ex ia IIB 3.86 F 300 mH 2.6 mH/ 
IIC 620 nF 80 mH 0.65 mH/ 
Magnetic 500 mV
(Terminals
10…12)
Protection Group Allowed
Capacitance
Allowed
Inductance
L
o
R
o
Ratio
U
o
= 14.7V
I
o
= 10 mA
P
o
= 18 mW
Ex ia IIB 3.86 F 600 mH 4.15 mH/ 
IIC 620 nF 150 mH 1.03 mH/ 
Magnetic 50 mV
(Terminals
10…12, 9…11)
Protection Group Allowed
Capacitance
Allowed
Inductance
L
o
R
o
Ratio
U
o
= 14.7V
I
o
= 10 mA
P
o
= 18 mW
Ex ia IIB 3.86 F 600 mH 4.15 mH/ 
IIC 620 nF 150 mH 1.03 mH/ 
Vortex 6V
(Terminals
14, 13…12)
Protection Group Allowed
Capacitance
Allowed
Inductance
L
o
R
o
Ratio
U
o
= 26.5V
I
o
= 82 mA
P
o
= 520 mW
Ex ia IIB 730 nF 8 mH 0.26 mH/ 
IIC 95 nF 2 mH 0.06 mH/ 
Vortex 3V
(Terminals
15, 13…12
Protection Group Allowed
Capacitance
Allowed
Inductance
L
o
R
o
Ratio
U
o
= 26.5V
I
o
= 82 mA
P
o
= 520 mW
Ex ia IIB 730 nF 8 mH 0.26 mH/ 
IIC 95 nF 2 mH 0.06 mH/ 