Rockwell Automation 1797-IE8NF FLEX Ex 8 Input Analog, HART and Noise Filter Module - Manual (Page 50)

50 FLEX Ex 8 Input Analog, HART, and Noise Filter Analog Modules
Publication 1797-5.5 - September 2011
Flexbus Entity Values for This Module
Any combination of up to eight FLEX Ex I/O modules may be attached on a
flexbus.
The entity concept allows interconnection of intrinsically safe apparatus
with associated apparatus not specifically examined in combination as a
system when the approved values of V
oc
and I
sc
or V
t
and I
t
of the associated
apparatus are less than or equal to V
max
and I
max
of the intrinsically safe
apparatus and the approved values of C
a
and L
a
of the associated apparatus
are greater than C
i
+ C
cable
and L
i
+ L
cable
respectively for the intrinsically safe
apparatus.
Simple apparatus is defined as a device which neither generates nor stores
more than 1.2V, 0.1 A, 20 μ J, or 25 mW.
Wiring methods must be in accordance with the National Electric Code,
ANSI/NFPA 70, Article 504 and 505. For additional information refer to
ANSI/ISA RP12.6.
This module, 1797-IE8, 1797-IE8H, or 1797-IE8NF must be used with
terminal base 1797-TB3 or 1797-TB3S.
Terminals 3, 7, 11, 15, 20, 24, 28, 32, 36-39, and 46 to 49 shall not be
connected.
WARNING: Substitution of components may impair intrinsic safety.
Terminals V
t
(V) I
t
(mA) Groups C
a
( μ F) L
a
( μ H)
Female Bus
Connector
5.8 400 A…D 3.0 3.0
IMPORTANT
For detailed certification information, refer to the FLEX
Ex System Certification Reference Manual, publication
1797-6.5.6.