UCS C-SV 4A - Smoke Extraction Commands; Emergency Operation and Signals

Doc. 85588U - Rev. 22/10/2020
USER MANUALUSER MANUAL
ENEN
Drw. 32367/h18/54
Ifused,theEXTALinputmustbeconnectedtooneofmorenormallyclosedcontacts
(usuallyrelays),putinserieswithoneanother,andwithasingle10kOhmresistorpo-
sionedattheendoftheline.
Ifnotused,theinputmustbeterminatedwitha10kOhmresistor(seediagram6on
page51).
Openingofoneormorecontact(s)(suchasbreakingofthecable)hasthesameeect
aspushingtheemergencybuon.
TheexternalalarminputcanalsobeconnectedtotheNCcontactontheEMSIGoutputforanotherC-SVcontrolunit,ifyou
wantanemergencystatusofthelaertobepropagatedtothecontrolpanelinvolved(seediagram11onpage53).
8.3.1 Emergency
8.3 Commands for smoke extraction
Thecontrolunitcanenterinemergencymodefollowing:
• SignalfromaSmokesensor
• HoldingtheEmergencyOpenBuon(NCcontact)downforatleast0,5seconds(lteringnecessarytoreducetheriskoffalse
alarms).
• ReceivingofanalarmfromanexternalsourceviatheEXTALterminal.Thecontrolunitcanbeconnected,forexample,toan
externalredeteconsystem.
Whenthecontrolunitisinemergencymode,theredLEDstaysonandthemanual,weather,thermostatandCO2sensorfuncons
are disabled. The control unit sends the motors an open command for 3 minutes. If the “deadlock” funconisenabled(default
seng),thecommandisrepeatedwith2minutepausesbetweeneachrepeon,foratotalmeof30minutes.
Insolenoidvalvepilongmodethemeschange:thecommandonlylasts3secondsandisrepeatedat10secondintervals,fora
totalmeoftwominutes.
Oncethecondionsthatcausedthealarmcease,thecontrolunitstaysinemergencystatusunlaresetcommandisgiven.
8.3.2 EM SIG
8.3.3 EM CL SIG
8.3.4 AUX SIG
Thisisacleancontactoutputforsignallinganalarmstatusofthecontrolunittoexternalde-
vices.Whenthecontrolunitgoesintoalarmmode(duetoanemergencysignalcomingfrom
smokesensors,theemergencybuon,oranexternalsource),thecontactswitchesasshown
indiagram9onpage52.
Thecontactstaysintheswitchedstateunlthealarmceases,andthecontrolunitisreset.
ItworksexactlylikeEMSIG,butbydefaultitisacvatedonlyintheEMERGENCYCLOSING
status signalling the intervenon of theFireBrigadeorauthorized personnelonEM CL
command.
Ontheotherhand,ifthecontrolunitisconguredinINTERLOCKSLAVEmode(seedip-switch
conguraonpar.8.2),theoutputbehavesasanexactcopyoftheEMSIGoutput,sothatthe
controlunithastwoseparatecleancontactswhichsignaltheemergencystatus.
CleancontactswitchingNCtoNOincaseoffaults.
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