Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 76)

Publication 1797-6.5.6 - June 2005
13-4 1797-IJ2 FLEX Ex Frequency Input Module
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/Con
tact
(terminals
9-8) Protection Group Allowed
Capacitance Allowed
Inductance L
o
R
o
Ratio
U
o
= 14.7V
I
o
= 15mA
P
o
= 30mW
EEx ia IIB 3.86
µF
300mH 2.6mH/
Ω
IIC 620nF 80mH 0.65mH/
Ω
Magnetic
500mV
(terminals
10-12) Protection Group Allowed
Capacitance Allowed
Inductance L
o
R
o
Ratio
U
o
= 14.7V
I
o
= 10mA
P
o
= 18mW
EEx ia IIB 3.86
µF
600mH 4.15mH/
Ω
IIC 620nF 150mH 1.03mH/
Ω
Magnetic
50mV
(terminals
10-12,
9-11) Protection Group Allowed
Capacitance Allowed
Inductance L
o
R
o
Ratio
U
o
= 14.7V
I
o
= 10mA
P
o
= 18mW
EEx ia IIB 3.86
µF
600mH 4.15mH/
Ω
IIC 620nF 150mH 1.03mH/
Ω
Vortex 6V
(terminals
14, 13-12) Protection Group Allowed
Capacitance Allowed
Inductance L
o
R
o
Ratio
U
o
= 26.5V
I
o
= 82mA
P
o
= 520mW
EEx ia IIB 730nF 8mH 0.26mH/
Ω
IIC 95nF 2mH 0.06mH/
Ω
Vortex 3V
(terminals
15, 13-12 Protection Group Allowed
Capacitance Allowed
Inductance L
o
R
o
Ratio
U
o
= 26.5V
I
o
= 82mA
P
o
= 520mW
EEx ia IIB 730nF 8mH 0.26mH/
Ω
IIC 95nF 2mH 0.06mH/
Ω