Prescient3 Extinguishing Control Panel

Key FeaturesKey Features

♦ Comprehensive facilities for gaseous extinguishing systems

♦ Approval to BSEN 12094-1:2003 additional options

♦ Approval to BSEN 54-2 and 4.

♦ Designed to BS7273-1:2000

♦ Monitored inputs for gas discharged, gas low, isolation valve closed/abnormal, gas trapped in manifold

♦ Control inputs for auto/manual, gas hold, gas abort

♦ 1 minute actuator cut off option

♦ Monitored actuator/solenoid release

♦ Extensive disablement options

♦ Common fire, fault, relay / monitored output facilities

♦ 1st stage, 2nd stage, 3rd stage and gas discharged relay / monitored output facilities

♦ Reset relay facilities

♦ Intrinsically safe barrier settings

♦ Metron or solenoid compatible

♦ Single or double knock operation

♦ Pre-discharge delay adjustable from 0 to 60 seconds

♦ Discharged indication with or without pressure switch

♦ Inhibit silence alarms until gas discharged

♦ Latching or non latching fault indication option

♦ Option for rapid buzzer pulse when gas imminent

♦ Semi-flush bezel and fully-flush cabinet options available

♦ One man zone and sounder test

♦ Easily removable chassis

From the UK's leading control panel manufacturer

Panel OverviewPanel Overview General The Prescient3 gaseous extinguishant control panel is powerful yet user-friendly and is designed and manufactured to a high standard. The panel features approval to BSEN 12094-1:2003, BSEN 54-2 and 4 and is designed to BS7273 part 1. The panel has extensive configuration options but is easy to install, programme and operate. The removable chassis enables the engineer to “first fix” an empty cabinet and then fit the chassis at the commissioning stage. This is supported by comprehensive documentation on commissioning, operating, maintenance and fault finding. In addition there is a comprehensive range of compatible accessories available to meet most customer requirements. Operation Three fully-monitored detection zones are provided. Zones 1 and 2 normally provide first stage and second stage fire conditions to allow extinguishant discharge (coincidence detection zones). Zone 3 is an auxiliary zone for detection only purposes. Zone 4 is used as a manual release zone. Facilities Three fully-monitored alarm circuits are provided, each rated at 0.5A with various configuration options via the engineers’ DIL switch settings. Two circuits are designed to provide audible warning of any fire condition and one circuit to provide an individually distinct audible warnings of the of pre-discharge, discharged and emergency hold condition. Two fully-monitored actuator/solenoid circuits, each rated at 1A, operate simultaneously upon “extinguishant release”. An RS485 multi-drop circuit link supports up to 7 Status Controller/Indicators of either type [basic or fully functional] mixed on the communication path. Additional terminals and configuration options allows the engineer to configure the manual release, abort and hold switches to either data comms or hard wired inputs as required. Normally-open inputs provide for remote evacuate, silence alarms, system reset, lock-off input, low pressure and gas discharged pressure switch input. Outputs are provided for first stage signalling, second stage signalling, system Discharged, common fire and common fault . These outputs may be configured as either VF C/O contacts or monitored 24V (50mA) outputs. A system reset VF relay is also provided. Configuration The use of DIL switches on the internal motherboard enables the engineer to easily configure the extensive options available and view the panel’s configuration upon any return visit. The DIL switch functions are listed in the technical specification of this leaflet.

Zone 1

Zone 2

Aux Zone

Gas Released

Gas Low

Isol Valve AbnormalIsol Valve

Closed

Act 1**

Act 2**

Gen Sndr 1**

Gen Sndr 2**

Ext Sndr**

Gas Released [Routing]**

Gas Released [SLU]Gas Manual [SLU]Gas Auto [SLU]

1st stage Plant Shutdown **

Fire Sig [Routing]**

Fault Sig [Routing]**

Timer Hold [SLU]Release Aborted [SLU]

+24V AUX 1A Output

2nd stage Plant Shutdown **

Aux Reset

Double knock detection

zones

Aux detetection zone

PanelManualRelease

Gas discharged pressure switch.

Gas Low[Low pressure

switch/low weight]

[Valve Closed][See valvewiring diag]

Gas isolationvalve.

[Valve Stuck]

Fire Z1

Fault/Disabled

Z1

Fire Z2

Fault/Disabled

Z2

Fire Aux

Fault/Disabled

Aux

Gas Released Fault

Gas Low

* = Open & short cct flt monitored I/P

*

*

*

Open & short cct flt monitored I/P. 680 Ohm = Ext Low

Open & short cct flt monitored I/P. 680Ohms = V/Closed2K2 = V/Abnormal

General Fire

Sounder Test

General Fire

Sounder Fault/

DisabledSndr 1 flt

Sndr 2 flt

Internal

Act 1 flt Act 2 flt

Internal Extinguishing Disabled

Aux DC Supply Max O/P1A Fused

Active on any fire Z1 or Z2 in auto, Man Rel or Gas Released P/S signal

Pulsed on Z1/Z2 Double K in auto or Man Rel.Continuous on actuator activation or disch P/S I/P signal activeMax O/P: 0.5A

** = Open & short circuit monitored

output

Active on coincidence fire on Z1 and Z2 in auto, Man Rel or Gas Released P/S signal

Fire Sig [Routing]

ActiveFault/

Disabled

Fault Sig[Routing] Fault/

Disabled

S/D Outputs Disabled

Gas Rel Signal

[Routing] Active Disabled

Operating on any fire Z1,Z2,Aux Zone

Link configurable O/Ps:Link ON:

Open/short cct fault monitored, powered at 24 VDC when active.

Link OFF:1 x Volt-Free Change-over relay contact[Rated 1 Amp @ 24VDC]

Operating [de-energising] on any fault including

Valve Abnormal but not Valve Closed

Operating on Gas P/S active I/P or Actuator operated when in "No Discharge P/S" mode

Open collector O/Ps each rated 50 mA

1 x V/F C/O relay contact [Rated 1 Amp @ 24VDC]

Operating for 10 seconds after operation of Fire Reset

switch

*

*

*

3rd stage Plant Shutdown ** Active on Actuators operated

(if no Discharged Pressure Switch) or Gas Released P/S

signal

Each Plant Shutdown O/P has:1 x O/P link configurable as fault monitored /powered when active [as per fire routing O/P] or 1 x V/F C/O relay contact rated 1 Amp @ 24 VDC.

S/DO/P1 flt

Internal

S/DO/P2 flt

S/DO/P3 flt

Gas Trapped

Pressure Switch

Gas Trapped in Manifold

+24V AUX 250mA OutputMax O/P 0.25A [Fused]

InternalExt Sndr Fault

Release Disabled [SLU]

RP - E/Hold Active or Panel in AutoRP - E/Abort Active or Panel in Manual

RP - Isol Valve Closed

RP - Isol Valve Abnormal

RP – Actuators (Extinguishing) Disabled

Internal

Fault

Internal

Auto&

ManualManual

Only Fault

Internal

E Abort Active Fault

Internal

E Hold Active Fault

Internal

IsolationValve

Abnormal

Isolation Valve

Closed Fault

Internal

Gas Trapped in Manifold Fault

Internal

0V AUX 1A Output

Release Count Down[SLU]

RS485 serial data [SLU]

To Status Indicator/Controller

SLUFault

Internal

Man Rel

Active

ManRel

Fault/Disabled

InternalGas Rel Sig

[Routing] Fault

ConventionalManual Release

Zone

Manual Release

ConventionalE Hold input

Emergency Hold

ConventionalAbort input

Emergancy Abort

*

*

*

*

ConventionalAuto/Manualswitch input

Auto/ManualLock Off

*

RCIRemote Controls Input:

4K7 = Sound Alarms1K8 = Silence Alarms560R = Reset Panel

Remote Sound AlarmsActive

RCIFault*

RP - Fire Z1

RP - Fire Z2

RP - Fire Aux Zone

RP – Manual Release Operated

DIL Switch Selectable

Continuous on fire Z1, Z2, Aux Zone,Remote Sound AlarmMax O/P: 0.5A

Operating on pre discharge timerEnded or Man Rel in ImmediatemodeMax O/P:1 Amp

Internal

FaultPanel MR

Internal

FaultExternal

MR

ExtinguishingResetInhibitActive

Illuminates steady while Extinguishing Reset is Inhibited

Block diagramBlock diagram

Status IndicatorsStatus Indicators

prescient3SL UB/rev2/04.07