Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 63)

Publication 1797-6.5.6 - June 2005
1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter 9-3
CE/CENELEC I/O Entity
Parameters Measurement input (sig to -) for ch 0 to ch 7 (terminals: 1-2; 5-6; 9-10; 13-14;
18-19; 22-23; 26-27; 30-31)
Source output (+ to sig) for ch 0 to ch 7 (terminals: 0-1; 4-5; 8-9; 12-13; 17-18;
21-22; 25-26; 29-30)
Source output plus measurement input (+ to -) for ch 0 to ch 7 (terminals: 0-2;
4-6; 8-10; 12-14; 17-19; 21-23; 25-27; 29-31)
Protection Group Allowed
Capacitance Allowed
Inductance
U
o
= 5V
I
o
= 1mA
P
o
= 1.3mW
EEx ia IIB 1000µF 1H
U
i
= 28V
I
i
= 93mA
C
i
and L
i
negligible
IIC 100µF 1H
Protection Group Allowed
Capacitance Allowed
Inductance
U
o
= 23.7V
I
o
= 92.5mA
P
o
= 548mW
EEx ia IIB 560nF 10mH
IIC 66nF 2.5mH
If concentrated
capacitance
and/or
inductance are
available, use the
following values. EEx ia IIB 320nF 10mH
IIC 60nF 2mH
Protection Group Allowed
Capacitance Allowed
Inductance
U
o
= 23.7V
I
o
= 93.5mA
P
o
= 555mW
EEx ia IIB 560nF 10mH
IIC 66nF 2.5mH
If concentrated
capacitance
and/or
inductance are
available, use the
following values. EEx ia IIB 320nF 10mH
IIC 60nF 2mH