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Cordex®CXCHPControllerSoftwareManual|7-Invertersystems

Thesearebrieflydescribedinthefollowingsection.Forinformationonusingthesefunctionsgothe

Inverter & T2S System Maintenance section.

Zero phase shift

Theoutputoftheinvertersisnormallyshiftedfromtheinputbyfivedegreesforcertainregulatory

compliance.Forsomesystemsrunningongenerator,itmaybenecessarytomomentarilyreducethis

phaseshifttozerodegreesbeforeanymanualbypassoperationisperformed.Awizardguidesyou

throughthisoperation.

Duringthewizard,thecontrollerwillcheckthedifferencebetweentheinputvoltageandoutputvoltage

(asmeasuredline-neutral).Thisdifferenceiscausedbydifferentlevelsofloadingoninputoroutputor

unusualACmainsconditions.Ifthedifferenceisgreaterthan6volts,awarningindicatesthatproceeding

withthebypassoperationmayresultinmomentaryinterruptionofpowertotheload.Ifthedifference

islargerthan6voltsthereisasmallchancethatinvertersmayshutdownwhentheydetecttoomuch

currentflowingintotheinputoroutputasthebypassswitchisturned.Ifthiswarningisoccurs,waituntil

inputandoutputareclosertogether.

AC input power limit

ThisfunctioncanbeusedtolimittheACinputpowerthattheinvertersystemwilltakebyusingsomeof

theenergyfromaDCbus.Ifthereisonlyabattery(andnorectifiers)supplyingtheDCbus,thisfunction

mustbemanuallycontrolledbyanoperatortoensurethebatteryisrechargedonceitisdepleted.

Manual DC priority

ThisfunctioncanbeusedtotakepowerfromtheDCbusbasedanonauser-specifiedpercentage.If

thereisonlyabattery(andnorectifiers)supplyingtheDCbus,thisfunctionmustbemanuallycontrolled

byanoperatortoensurethebatteryisrechargedonceitisdepleted.

7.2. Create an inverter system

There are two options for creating an inverter system:

•

UsetheCreate System wizardviatheSystems > Add or Remove Systems menu,andselect

Create Inverter System fromthedropdownmenuofsystemstocreate.

•

Useaconfigurationfiletoimportaninvertersystem.

Afteraninvertersystemiscreated,itmusthaveoneT2Smoduleassignedtoit.TheT2Smoduleisa

CANdevicethatcontrolsandmonitorstheinverters.

7.2.1. Create a system from a configuration file

Asystemcanbecreatedbyimportingfromaconfigurationfile.SeetheImporting a system sectionfor

moreinformation.

0350058-J0 Rev AL Page 107

EnerSys Alpha Cordex CXC HP User Manual

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