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Cordex®CXCHPControllerSoftwareManual|14-Generator

• Generator Running too Long: Ifthisalarmisactive,thenthegeneratorhasrunlongerthanthe

thresholdconfiguredinthealarm'sdetailspage.Thegeneratorisstillrunningbecauseeitherthe

generator'sCall to Stop isnotTrue,orithasnotexceededitsconfiguredMinimum Runtime.

• Generator Status Mismatch: TheGenerator Status Signal isdetectingthatthestatusofthe

generatordoesnotmatchwhatisexpected.EitherthegeneratorisrunningwhentheGenerator

Status indicatesitshouldnotbe,orelseitisnotrunningwhenitshouldbe.Thisalarmdoesnot

activateuntilapproximately30secondsafterthemismatchisfirstmeasured,toallowtimeforthe

generatortostartuporshutdown.

14.8. Legacy generator

ALegacy Generator isaspecializedtypeofACsourceorDCsourcewhichallowsageneratorto

bestartedandstoppedwitharelay.Thelegacygeneratorhasbeensucceededbythegenerator,as

describedintheprevioussection.

Thestandardconditiononwhichtostartorstopageneratorisbasedonavoltage.Thecontrollerallows

theusertochooseanyvoltageinthesystemandsetitastheVoltage to Monitor,withastartthreshold

andastopthreshold.ThegeneratorwillbestartediftheVoltage to Monitor fallsbelowtheStart Voltage

Threshold,andwillbestoppediftheVoltage to Monitor climbsabovetheStop Voltage Threshold.

Theoptionalstartorstopconditionscanbeusedtostartandstopthegeneratorbasedonothertypesof

conditions.Forexample,thebatterySOCcouldbeused.TheabilitytouseCustomDataorothersystem

valuesgivesthegeneratorcontrolalotofflexibility;however,caremustbetakentoensurethatthestart

andstopconditionsmakesense.Otherwise,itispossiblefortheusertocreate,forexample,astart

conditionthatisalwaystrue,inwhichcasethegeneratorwouldnotstoprunning.

TheMinimumRuntimeassuresthatthegeneratorwillnotbestartedtoonlyrunfortooshortaperiod

oftime.Oncethegeneratorhasstarted,itwillcontinuetorunfortheMinimumRuntimeevenifastop

conditionhasbecometrue.

TheMaximumRuntimeisintendedtoensurethatthegeneratordoesnotcontinuetorunindefinitelyeven

ifnostopconditioncomestrue.AfterrunningfortheMaximumRuntime,thegeneratorwillattempttoshut

down.Itshouldbenotedthatifastartconditionisstilltrue,itwouldstartupagainimmediately.Inthat

case,aneventmessagewillbelogged.Additionally,thereisaGenerator Running Too Long alarmthat

maybeenabledtohelpalerttheusertothissituation.

14.8.1. Create a legacy AC generator

To create a legacy AC generator:

1. IfanACsourcesystemdoesnotalreadyexist,createitbygoingtoSystems > Add or Remove

Systems andlaunchtheCreate System wizard.

2. GotoSystems > AC Source System > Inventory.

3. IntheAC Sources table,selectAdd AC Source buttontolaunchthewizard.

4. SettheName andthenselectNext.

5. SelectLegacy Generator fromtheAC Source Type dropdownlist.SelectNext.

0350058-J0 Rev AL Page 153

EnerSys Alpha Cordex CXC HP User Manual

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