Instruction manual

-28-
Section9-Faultmessages
ItisvitalanyfaultsbeimmediatelycheckedanddiagnosedbyaqualifiedEngineerwithexperienceofthis
controlpanel.
Thecontrolunitmonitorstheconnectionofallinternalribboncables. ThepositionoftheIOtoloopribboncable
dependsuponthenumberofloopcardsfitted.Ifthenumberofloopcardshaschangedfromtheoriginally
manufacturedunittheribboncablewillrequiremovingtothecorrectlocation.ContactEDL forfurther
informationoncorrectlylocatingtheribboncable.Failuretocorrectlypositiontheribboncablewillmeana
lossofalarm/faultsignalsfromsomeloopcards.Itisimportanttonotethecontrolunitwillonly
checkthelocationonce,atswitchon.Onceresetthefaultwillnotbereportedagainuntiltheunitisswitchedoff
andonagain,evenifitstillexists.Itwillberecordedinhistory.
Ifafterclearingtheconfiguration,usingFireConfig,thesystemisnotimmediatelyreconfiguredthismaybe
becausethesystemdefaultstosingleloopsetup. Thereforeitisimportantthesystemisconfiguredandthe
correctnumberofloopcardsentered.
The“LOOP IN”terminalsareconstantlymonitoredbythecontrolpanel.Ifashortcircuitoropencircuitoccurs
thepanelwilldisplaythefaultcondition. Thefaultshouldbeinvestigatedassoonaspossiblebecauseitis
likelysomedevices,orevenall,arenotabletorespondandthereforenotoperate.
Itisquitelikelyotherfaultwarningswillbecoupledwithloopcontinuitye.g.Noresponsefromsensor.
Thisfaultmessagewillincludetheloopanddeviceaddressandcanoccurforanyaddresseddeviceonthe
loopincludingsoundersandbeacons. Thisfaultindicatesanopenorshortcircuitloopproblem,devicefailureor
ifthedevicehasbeenremoved.
Thisfaultmessagewillincludetheloopanddeviceaddressandcanoccurforanyaddresseddeviceonthe
loopincludingsoundersandbeacons. Thedevicehasregisteredaninternalfaultandshouldbereturnedfor
servicing.
For ApolloDiscoverydevicestheanaloguevalueshouldbecheckedbyusingthe
,becauseadditionalinformationcanbeobtained:
Apollodiscoveryanaloguevalue faulttype
0 Internaldevicememoryproblem
1 Primarysensingelementfailure
2 Secondarysensingelementfailure
3 n/a
4 Generalfault
5 n/a
6 Driftcompensationlimit.
7 communicationfailure
8 n/a
Apollodiscoveryopticalsmokeandmulti-sensorsusedriftcompensationtoallowfordirtysensingelements.
Eventuallythedevicecannotcompensateanymoreandrequirescleaning. Theunitshouldbereturnedto
Apollo,EDL,oradistributorforservicing.Itisimportanttorealisethatwhentestingwithsyntheticsmokeonly
smallamountsoftestsmokearerequired.Itisveryeasytocoatthesensingelementofthedetectorquickly
bringingittothelimitofcompensation.
Bothconventionalzonesandallthreesoundercircuitswiringaremonitoredforbothopenandshortcircuit.
Thefaultshouldbeinvestigatedassoonaspossiblebecauseitislikelythatsome,orevenall,devicesarenot
abletorespondandthereforenotoperate.
Ifduringanalarmasoundercircuitfaultisreporteditshouldbeassumedsomeorallaudibleandvisualalarms
arenotworkingandothermethodsofdrawingattentiontothedangersshouldbeemployed.
IOtoLoopcablefault
dangerous
Loopcontinuity
Noresponsefromsensor.
Sensorinternalfault.
mainmenu>livevalues>
headvalues
Shortcircuitfaultandopencircuitfault
ED816A AddressableFireandgasdetectionInstallationmanual8-9-08Rev-a