APS2-6R/E Instruction Manual —
P/N 53232:B 2/26/2014
19
NFS2-640 and NFS-320
UL 864 9th Edition Configurations
A.2 NFS2-640 and NFS-320
The APS2-6R must be mounted to the CHS-4/L chassis in the CAB-3/4 Series backbox. See “In a CAB-3/4 Series
Backbox” on page 11.
A.2.1 Connecting to the CPS-24 and CPU2-640/NFS-320
1. Connect trouble output from
J3
on the APS2-6R to the
J6
Trouble Bus connection on the CPU2-640/CPU-320.
2. Connect AC Fail supervision from
TB4
on the APS2-6R to an FMM-1 or equivalent monitor module on the
SLC.
3. Connect primary power from
TB1
on the APS2-6R to
TB1
on the CPS-24 (onboard power supply for the CPU2-
640/CPU-320).
4. Connect AC power to
TB1
on the CPS-24. Make sure to properly ground the unit to the backbox.
5. Connect batteries to
TB3
on the CPS-24.
6. Connect secondary power from
TB3
on the APS2-6R to
TB3
on the CPS-24.
7. Attach battery interconnect cable.
!
WARNING:
Be sure to finish installation before applying power. Test AC power before continuing.
47K ELR
(P/N R-47K)
SLC
CPS-24 and
CPU2-640/CPU-320
APS2-6R
to b
back-up -
Non-power-limited
Power-limited
Power-limited
Note: Maintain 0.25” spacing between
Power-limited and Non-power-limited
wiring. Install tie wraps and adhesive
squares to secure the wiring.
FMM-1*
*If the SLC device does not match the one in this figure,
refer to the SLC manual appendix, which contains wiring
conversion charts for type V and type H modules.
Figure A.2 Wiring to CPS-24 and CPU2-640/CPU-320
ap
s2
6r
tocp
u2
640
.w
m
f
