General
System Overview
FCPS-24FS PN 51883:B 12/04/02
13
1.7 General
The FCPS may be used in a number of different applications. It may be used as a
remotely-mounted power supply and battery charger where it can provide up to four
coded or noncoded, synchronized or nonsynchronized NACs (Notification Appliance
Circuits). Alternatively, output #4 can be used as a door holder circuit which will
provide a steady 24 VDC output until an alarm condition or AC fail condition causes it
to drop to 0 VDC following a 60 second delay. All four outputs can also provide power.
One possible application for the FCPS remote power supply utilizes the NAC repeater
feature. In this application, one or two NACs are connected from the main FACP to the
remote power supply control input circuits. When the control input circuits are
activated by the reverse polarity of the NACs, the power supply will activate its
corresponding output circuits as programmed by SW1 DIP switch configuration (refer
to Table 3.1 on page 20).
During the inactive state, the remote power supply supervises its NAC field wiring for
short and open conditions. If a fault is detected, the power supply will enter a trouble
condition and illuminate the NAC Trouble LED. When the NACs are activated, the
supervision is disabled and the circuits are no longer supervised. Supervision of other
power supply faults such as low battery, battery charger trouble, ground fault and AC
loss will continue and may be monitored via the power supply trouble relay.
If an application requires that all four outputs activate at the same time, only one NAC
is required from the FACP. For this application, the NAC is connected to control input
circuit #1 and SW1 DIP switch is set for this operation.
Style Y NAC
or Door
Holder Power
Output #4
AC Power
Figure 1.2 Simplified FCPS Block Diagram
Battery Charger
Style Y NAC
Output #3
Style Y NAC
Output #2
Style Y NAC
Output #1
Note:
All NAC
outputs can be
converted to Style Z
with ZNAC-4 option
module
FCPS Trouble
Contact Output
24 VDC Specific
Application Power
NAC Control
Input #2
(from FACP)
NAC Control
Input #1
(from FACP)
Sync. Input
Input/Output Functions are Programmable
by SW1 DIP Switch Settings
24
fs
bl
ok.c
dr
