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14. Generator

Thissectionprovidesanoverviewofthecomponentsandfunctionsofthecontroller'ssupportforACand

DCgenerators.

AgeneratorisaspecializedtypeofACorDCsourcewhichcanautomaticallycontrolthestartingand

stoppingofageneratorwiththeuseofarelay,basedonstartandstopconditionsspecified.

Bycustomizingthestartandstopconditions,theusercanadjustthegeneratorcontrolfortheirspecific

situation.Forexample,startandstopconditionscanbeaddedwhichrunthegeneratorbasedona

scheduleinordertoexercisethegenerator.

ThegeneratorhasabuiltinandconfigurableMinimum Runtime toprotectthegeneratorfromshort

startups.IfastopconditioncausestheCall to Stop tobetrue,thecontrolsystemwillfirstwaitforthe

generatortorunfortheminimumruntimebeforeitcommandsthegeneratortostop.

ThegeneratorensuresstableoperationwithitsconfigurableEquation Stability Delay.Forexample,

whileastartconditionmaybecometrue,theCall to Start willevaluatealltheenabledstartconditions

forthelengthoftheEquation Stability Delay beforeitbecomestrue.Thismeansthatifachangein

thedependentstartorstopconditionsisnotstablefortheconfiguredtime,itwillnotaffectthegenerator

control.Thiseffectivelyfiltersoutsensornoiseandfurtherprotectsthegeneratorfromfrequentandshort

startupcycles.

Severalstatisticsareavailabletogiveinsightintothehistoricalbehaviorofthegenerator.Bydefault,the

Startups in Time Period keepstrackofthenumberofstartupsinthelast24hours.TheTotal Startups

andTotal Runtime arealsorecorded.

Intheeventofhardwaremalfunctionormisconfigurations,severalalarmsaresuppliedwiththegenerator

toalerttheuserinavarietyofadversesituations,suchastheStartup Frequency High alarm,which

activateswhentheStartups in Time Period exceedsagiventhreshold.

14.1. Create an AC generator

To create an AC generator:

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

andlaunchtheCreate System wizard.SelecttheAC Source System fromthedropdownlistand

finishthewizard.

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

3. IntheAC Sources table,selectAdd AC Source.TheAdd AC Source wizardwilllaunch.

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

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

6. SelectthePhase foryourAC Source.SelectNext.

7. OntheAlarms page,selectwhethertheACInputFailalarmshouldbeenabledforthissource.

SelectYes orNo.

0350058-J0 Rev AL Page 145

EnerSys Alpha Cordex CXC HP User Manual

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