Ampac Firefinder User Manual

FIREFINDER

TM

INSTALLATION COMMISSIONING & OPERATION

6.5 Fire Fan Module BRD25FCB

The Fire Fan Module has four ( 4 ) separate fan controls each having an On, Auto and Off function switch and a set of three (3) monitoring LED’s. The LED’s indicate the status of the equipment eg. Run, Fault or

Stop. The two ( 2 ) arrow head keys are used to step up and / or down through the three ( 3 ) conditions. A slip in label can also be inserted into the hinged cover for identification purposes.

A loop driven version is also available (159-0105 )



Note#: As per AS 1668.1 1991, Clause 14.17.4 lettering on any of the slip in labels must be at least

5mm in height.

Quiescent Current: 13.5mA

AC

TIV

ATE

D

Module & PCB Securing Tabs

( Top & Bottom )

PCB

Cle ar P lasti c C lip In

La be l

PLA

NT

TR

IP

WINDOWS

FOR SLIP

IN LABELS

WINDOWS

In

C

N

1

C

N

2

Out

K2 Termination Link

Top Module &

PCB Securing Clips

ON

Address

Switch

Set to 1

RE

SE

T

CN1: Communications & 27V IN from CN2 off the previous

Front Panel Card or CN20 on the Main Control Board

Slip In

Label

CN2: Communications & 27V OUT to Next Front Panel Card.

If Unsed the Termination Link Must be Inserted.

Clip On

Plastic Surround

( Push down here and pull out to remove and insert labels )

Lettering on slip in labels must be at least 5mm in height.

Bottom Module &

PCB Securing Clips

Figure 32: Fire Fan Module Front Panel Figure 33: Fire Fan Module PCB Layout

6.6 Fan Termination Board BRD25FTB

The Fan Termination Board interfaces between the Fire Fan Module and the plant/equipment it controls via the 24 volt 250mA Start, Stop, current limited, relay outputs and monitor inputs. Programmable monitoring of the field equipment is achieved using 0 volts as an input level to indicate run, fault and stop conditions of that equipment. Monitoring is programmed in the Function Menu for a 3, 4 or 5 Wire Start / Stop, Run,

Fault, Stop & Common functions. The inputs are protected by way of resetable transorbs and resistive / capacitive networks.

Connectors

CN5 Is used for factory programming only and may not be available on all boards.

Terminal Blocks

TB2

– 5 Are used to connect the fan control and monitoring wiring to the board.

RUN

FAN 1

START STOP RUN

FAN 1

FLT STOP COM

TB2

FAN 2

START STOP RUN

FAN 2

FLT STOP COM

TB3

FAN 3

START STOP RUN

FAN 3

FLT STOP COM

TB4

FAN 4

START STOP RUN

FAN 4

FLT STOP COM

TB5 RUN

FAN MONITORING

STOP

STOP

CN1

CN2

CN3

RS485 Control in from CN2 of Previous

Board or CN21 of the Main Control Board

START

FLT

COM

FAN CONTROL

SOLID STATE OR

RELAY INTERFACE

CN4

LK1

EOL Termination

RS485 Control Out to Next Board or Link 1 EOL is Applied

27V Out to Next Board if Applicable

O N

1 2 3 4

SW1

Address SW

STOP, START, RUN = 3 WIRE

STOP, START, RUN,

STOP = 4 WIRE

STOP, START, RUN, STOP,

FAULT = 5 WIRE

+24V O/Ps INPUTS 1, 2 & 3 0V

27V In from the Brigade Broard or CN4 of the Previous Board

1 2 3 4 5 6

Figure 34: Fan Termination Board Layout and Typical I/O Wiring

Cabling from FACP to Plant / Equipment

TB 2, 3, 4 or 5

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