Ampac FireFinder PLUS, Установка, пусконаладка и эксплуатация

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Page 84
12.16.4 Agent Release Termination Board
SW1
+ LOCK-
+ L.PSW-
RELEASE
- +
SIG+
SIG-
LCS CABLE
+ PSW -
INPUTS
N/0
STAGE2
GAS
+
-
N/0 C O M N/0 C O M
+
SYST.
SCRN +24VDC + -
0VDC
+ -
STAGE1
-
C O M
TB7 TB6 TB5 TB4
TB3
TB2 TB1
C
N
2
C
N
1
Address Setting
CN3
CN4
RS485 Control
Comms In
MAIN RESV
+ - Outputs are Monitored
Fit EOL Termination
Link 1 to Last Module
on Comms Bus
1 2 3 4
O N
INOP FIRED MONITORED
Optional 27VDC In
RS485 Control
Comms Out
2
2K
2
2K
2
2K
1
0K
1
0K
Figure 107: Agent Termination Board PCB Layout
The Agent Termination Board interfaces to;
1.
The FACP via CN1, CN2 continuing the RS485 communications bus if required. LK1 is inserted
if this is the last backpan board on the bus.
2. LCS’s (up to 7) via TB1. LK1 is inserted in the last board in the RS485 Bus
3.
Monitored Inputs: via TB2. (EOL Resistance 22K

, Series Resistance 4K7

)
i.
Pressure Switch (PSW) agent released
ii.
Low Pressure Switch (LPSW) agent storage cylinder pressure has dropped to a pre-
determined level; and
iii.
Interlock, the manual lock-off valve has been operated.
4.
Gas Fired: Output via RL2 N/O contacts rated at 1A @ 24VDC wired to TB3. Used to indicate to
other monitoring devices the agent has been released.
5.
System Inoperative: via RL1 N/O contacts rated at 1A @ 24VDC wired to TB4. Used to warn by
way of signage / audible alarm and/or monitoring that the system is inoperative.

Note: The
“System Inoperative” output will operate (turn on) when all zones or groups used in the
Activation columns are "Disabled" or in "Fault".
When
“Dual activation” is used, 50% or more of the configured Activation columns are “Disabled” or in
“Fault” the “System Inoperative” output will operate.
6.
Stage 1: Output; initiates the visual and audible Fire Alarm and Evacuate warnings.
i.
Monitored; via RL4 C/O contacts wired to TB5 1 & 2 (EOL required 10K

) and
ii.
Un-monitored; via RL5 N/O contacts wired to TB5 3 & 4.
7.
Stage 2: output; initiates the visual and audible Fire Alarm and Do No Enter warnings
i.
Monitored; via RL6 C/O contacts wired to TB6 1 &2; (EOL required is 10K

) and
ii.
Un-monitored; via RL3 N/O contacts wired to TB6 3 & 4
8. Release: Main actuating circuit, monitored (10KΩ EOL required) via TB7 1 & 2 (2A current
limited),
9. Release: Reserve actuating circuit, monitored (10KΩ EOL required) via TB7 3 & 4 (2A current
limited)

Note 1: Metron Igniters - (max of 10
– a series 2watt 18

resister must be added to the circuit)

Note2 : Solenoid valve - (max current of 2 amps & 27VDC)