Instruction manual

-29-
Operatinginstructions-faultmessagescontinued
Supplyvoltagefault
Batteryopencircuit-pleasereplace/Batterytoolowtocharge-pleaseremoveandcharge
NoresponsefromLoopCardorI/OCard-Commserror.
importanttonote
Engineerto
visitimmediately
Fire
Evacuate
Alloftheinputpowersuppliestothecontrolunitandalsothedcfusedoutputaremonitored.
Thebatteryismonitoredforopencircuitandundervoltage.Ifthesystemhasbeenrunningoffbatteriesfor
sometimeitislikelythebatteryvoltageisverylow.Ifwhenthe ACmainsisrestoredthebatteryvoltageis
belowapproximately22Vthesystemwillnotchargethebatteries,avoidinghighchargingcurrentsand
excessiveheatgeneratedinsidethecontrolunit. Thebatteriesshouldberemovedandchargedusinga
dedicatedbatterycharger.
TheDisplay,I/OmoduleandLoopcardsallcommunicatewitheachother.Ifoneofthesemodulesdevelopsa
faultitispossibleforthiscommunicationtofail.Itisalsopossibleforacommunicationserrortooccurifthe
systemissubjectedtoextremeRFI.IntheeventofacommunicationsfailuretheCommslampwillbe
illuminatedandtheinternalbuzzerswilloperate.
Thesystemautomaticallytriestorecoverfromacommserrorandpressingtheresetbuttonmayrestore
communications.Ifthesystemisunabletorecoverremovingthepower,includingthebatteries,maysolvethe
problem.Ifthecommunicationfaultwascausedbyahardwarefailureitwillnotbepossibletorecover.
Intheeventofaninternalcommunicationsfault:
1. Press“RESET”onthedisplaymodule.
or
2. Turnoffthesystem,waitafewsecondsandthenturnitbackon.
or
3. Ifthedisplaymodule,isstilloperational,rebootthesystem.Seepage25.
Iftheabovedoesnotallowthesystemtorecoveritsnormaloperatingconditionarrangeforan
.Nextcheckthestatusofthesystemtoestablishwhatfunctions,detectorsetc.,arestill
operational,asfollows:
4. OpentheED816door,unscrewandremovethetopblankingplatetorevealthebackupswitchesand
lampsshownabove.
4. Checkthepowerlightisoneachmodulewithinthesystemasthefaultcouldbecausedbyablownfuse.
IfafusehasblownonanyoftheED722orED726LoopmodulesorthefusefeedingtheI/Omodulehas
blown,the Alarm,Pre-Alarm,FaultandDelayedrelays,theHWFDoutputandSounder1willoperate.
5. Testthedetectorsandotherloopdevicesoneachloopandconventionalzones,ifused,toestablish
whichdevicesarestilloperational.
6. Intheeventofa theloopsoundersandbeaconscanbesilencedbypressingbothofthe“MUTE”
buttonsshownabove.SimilarlyLoopdevicescanberesetbypressingboth“RESET”buttonsshown
above.
To pressboththe“EVACUATE”buttonsshownabove.
Itis thatintheeventofacommunicationfaultsystemoperationmaybe affected.
Causeandeffectsprogrammedmaynotoperateandthedisplaymodulemaynotbeabletooperatecorrectly.
Howeveriftheloopcardsarestilloperationalthesystemwillstillcontinuetooperateinalimitedmanner.Inthe
eventofacommunicationsfaultthepushbuttons“EVACUATE”,“MUTE”and“RESET”,locatedontheED816A
I/Oboard,becomeoperational(innormaloperationtheyactonlyaslamptestbuttons).
7.
severely
ED816A AddressableFireandgasdetectionInstallationmanual8-9-08Rev-a
Backupalarm/indicatorlamps
EVACUATE
MUTE
RESET
POWER
ALARM
PRE-ALM
DELAYED
FAULT
SILENCED
ISOLATED
LOOP 1STATUS
EVACUATE
MUTE
RESET
POWER
ALARM
PRE-ALM
DELAYED
FAULT
SILENCED
ISOLATED
LOOP 2STATUS
LampTestbuttonandbackup
Resetbutton.
LampTestbuttonandbackup
Evacuatebutton.
LampTestbuttonandbackup