Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 52)

Publication 1797-6.5.6 - June 2005
6-2 1797-OB4D FLEX Ex 24V dc Non-Isolated Source 4 Output Module
Intrinsically Safe
Specifications For a full list of specifications, refer to FLEX Ex 24V dc Non-Isolated Source
4 Output Module Installation Instructions, publication 1797-5.6.
CE/CENELEC I/O Entity
Parameters Signal output (+ to -) for ch 0 to ch 3 (terminals: 0-1; 4-5; 8-9; 12-13)
ATTENTION
Do not use any unused terminals on this terminal base unit.
Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.
Output (intrinsically safe)
(16 position male/female flexbus
connector)
U
i
< 5.8V
I
i
< 400mA
Li = Negligible
Ci = 1.35
µ F
Power Supply
(+V, -V Intrinsically Safe)
U
i
< 9.5V dc
I
i
< 1A
L
i
= Negligible
C
i
< Negligible
Operating Temperature -20 to +70 o C (-4 to +158 o F)
Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4
II (1D) (2D)
Certificates DMT 98 ATEX E 040 X
Protection Group Allowed
Capacitance Allowed
Inductance
1797-OB4D
U
o
= 27.4V
I
o
= 110mA
EEx ia IIB 677nF 8mH
IIC 87nF 2mH
If
concentrated
capacitance
and/or
inductance
are available,
use the
following
values. EEx ia IIB 150nF 5mH
IIC 30nF 2mH