User Manual

FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module 21
Publication
1797-5.6 - June 2011
• UL 1203, Explosion-Proof and Dust-Ignition-Proof Electrical
Equipment for Use in Hazardous (Classified) Locations
• UL 22
79, Electrical Equipment for Use in Class I, Zone 0, 1, and 2
Hazardous (Classified) Locations
• UL
61010, UL Standard for Safety Electrical Equipment For
Measurement, Control, and Laboratory Use; Part 1: General
Requirements
• CSA C22.2 No
. 157-92, Intrinsically Safe and Non-Incendive
Equipment for Use in Hazardous Locations
• CSA C22.2 No
. 30-M1986, Explosion-Proof Enclosures for Use in
Class I Hazardous Locations
• CSA-E79
-0-95, Electrical Apparatus for Explosive Gas Atmospheres,
Part 0: General Requirements
• CSA-E79
-11-95, Electrical Apparatus for Explosive Gas
Atmospheres, Part 11: Intrinsic Safety “i”
• CSA
C22.2 No. 14-95, Industrial Control Equipment
Wiring Methods
• Wi
ring method 1: Each channel is wired separately.
• Wi
ring method 2: Multiple channels in one cable, providing each
channel is separated in accordance with the National Electric Code
(NEC) or Canadian Electric Code (CEC).
Wiring Method
Wiring
Me
thod
Channel Terminals V
oc
(V)
I
sc
(mA)
V
t
(V)
I
t
(mA)
Groups C
a
(μF)
L
a
(mH)
1 and 2 Any one
channel
(fo
r
example,
ch0)
0(+), 1(-) 27.4 110.0 - - A, B, IIC 0.03 2.0
C, E, IIB 0.09 8.0
D, F, G, IIA 0.24 16.0