Relays; Notification Appliance Circuits - Fire-Lite MS-9200UDLS Manual

Relays

2.4 Relays
The FACP provides two programmable Form-C relays and one fixed fail-safe Form-C trouble
relay, all with contacts rated for 2.0 amps @ 30 VDC (resistive) or 0.5 amps @ 30 VAC (resistive).
Note that relay connections may be power-limited or nonpower-limited, provided that 0.25" spac-
ing is maintained between conductors of power-limited and nonpower-limited circuits. Refer to
UL Power-limited wiring requirements.
Note that the programmable relay
labeled as Relay 1 is factory default
programmed as Alarm and
programmable Relay 3 is factory default
programmed as Supervisory.
The relay labeled Relay 2 is fixed as a
Trouble relay and cannot be changed.
It is a fail-safe relay which will transfer
on any trouble or total power failure.

2.5 Notification Appliance Circuits

The control panel provides four Style Y (Class B) or four Style Z (Class A) NACs (Notification
Appliance Circuits) when using the optional ZNAC-92 Class A converter module. Each circuit is
capable of 2.5 amps of current. Total current in alarm for all external devices cannot exceed 6.0
amps (refer to "Calculating the System Current Load" on page 189). Use UL listed 24 VDC notifi-
cation appliances only. Circuits are supervised and power-limited. Refer to the Device Compatibil-
ity Document for a listing of compatible notification appliances. The NACs, which are located on
the main circuit board, may be expanded via the FCPS Series field charger/power supplies.
The following sections describe the configuration and wiring of Style Y and Style Z Notification
Appliance Circuits on the MS-9200UDLS main circuit board.
MS-9200UDLS/E/C Manual — P/N 52750:F 7/26/2010
TB7 TB5
Relay contacts shown with power applied to panel
and no active troubles, alarms or supervisories
Figure 2.7 Relay Terminals
TB6
Installation
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