Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 236)

Publication 1797-6.5.6 - June 2005
52-2 1797-PS2N2 FLEX Ex Power Supply
Intrinsically Safe
Specifications For a full list of specifications, refer to FLEX Ex Power Supply Installation
Instructions, publication 1797-5.12.
FM I/O Entity Parameters Wiring Methods
• Wiring method 1 - Each channel is wired separately.
• Wiring method 2 - Multiple channels in one cable, providing each
channel is separated in accordance with the National Electric Code
(NEC).
Table 1: Entity Values for Field Device Connections
Specifications 1797-PS2N2
Voltage Range 18 to 32V dc
Operational Temperature -20 to 70 o C (-4 to 158 o F)
Agency Certification Mounting - Class I Division 1 Groups B-D T4
IS Power - Class I Division 1 Groups A-D T4
Class I Zone 1 AEx [ib] IIC
Certificates FM Certificate Number 3009806
ATTENTION
Once power has been applied, wait 15 minutes after
disconnecting before opening cover.
FM
PS2N PS2N2 PS2N PS2N2
Wiring
Method
Channel Terminals V
oc
(V)
I
sc
(A)
Groups C
a
(
µF)
C
a
(
µF)
L
a
(
µH)
L
a
(
µH)
1 and 2 Any one
channel
e.g. ch1
10(+), 11(-) 9.5 1.0 A, B 0.8 0.5 10 8
C, E 2.4 1.5 30 24
D, F, G 6.4 4.0 80 64