说明案例讲稿memopower plus31series principle and miantenance manual

B13Y01_YDC9300SeriesUPSPrincipleandShenzhenKSTARScienceandTechnologyCo.High-frequencyproduct Figure Table 一 Operating 二 Systemelectrical Cabinetblock 错误！未定义书签。Moduleblock PowermodueAC/DC&DC/DCprinciplecircuit InverterDC/AC Asshownabove,A(yellowbox)representsbypasscircuitofpowermodule,B(bluebox)showstheinvertercircuit,whichconvertstheBusvoltageintotheAC 三 UPS 四 UPSinternal InternalstructureofUPS Internalstructureofpower 错误！未定义书签。五 EachPCBboardanditsinterface PFCinductor PFCpower 错误！未定义书签。 错误！未定义书签。Inverterpower 错误！未定义书签。DSP 错误！未定义书签。Paralleladapter 错误！未定义书签。六 Inspectionbefore Roomenvironment UPSlocation UPSvisual Externalcablesandswitchcapacity Externalautoswitchingandgeneratorpowerdistribution Battery 七 UPS Guidelinesforgood Security Battery PCB PCBstatic 错误！未定义书签。八、Singlecabinet 九 Parallelsystem Emergency 十 UseC2000emulatorto Use485communicationto AppendixADifferenceamongtheeachpowermoduleof AppendixBPowermodulefault FigureFigure1.Appearance（stand-alone Figure2.Appearance（power Figure3Operation Figure5Powermoduleoperating Figure6Cabinetblock Figure 8.powermoduleAC/DC&DC/DC Gigure PowermoduleBypassandinverter Figure10.Charging Figure Rightviewof200K Figure12Leftviewof200K Fig13.Monitoringmodule、bypassinductor 错误！未定义书签 Figure15Rearviewofbypassinductor 17Internalviewofpowerdistribution Figure18Rearviewof Figure19Cableclampfor Figure20TouchableLCDinthefront Figure21Rearviewofmonitoring Figure22Frontviewofpower Figure23Backviewofpower Figure24PFCinductor Figure29.PFCpowerboard Figure32DSPboard Figure34moduleIDfor TableTabel1LED Table5HPMdata 7PFCpowerboard YDC9300seriesUPSPrincipleandYDC9300Seriesisakindofhigh-frequencyonlineinligentUPSandadoptsdoubleDSPcontrol,advancedcontroltechnologyanddoubleconversiontopology.Iteliminatesvariousinterferenceofthegridandmakestheoutputastableandpuresinewavepowerwithlownoise,nointerfenceandlowdistortion.Withstrongloadcapacity,goodloadcompatibility,wideinputvoltageandfrequencyrange,excellentgeneratorcompatibilityandzerotransfertime,itgreatlymeetstherequirementofvarietyofapplications.Comprehensiveprotectionenhancesthestabilityandreliabilityofthesystem.Inligentbatterymanagement,equalizedandfloatingchargingautoconversion,batterydischargetimepredictionandbatteryself-testcanextendthebatterylife.Itcanbeusedinadvancednetworksystems.★powerrange：10KVA-20KVA,upto4UPScanbe★Workingmode：Highfrequencyinligentonline(3-phaseintosingle-

Thisseriesisthree-phaseintosingle-phaseoutUPSwithlargecapacity，theinputcurrentofthreephaseisbalancedwhichcanbalancetheloadofeachphase.DigitalcontrolisusedforallpartsoftheUPS,whichmakestheperformanceindicatorsveryexcellentandthesystemmorestable.Itnotonlyhasself-protectionandfaultdiagnosis,butalsocanavoidrisksofogdevicefailure,whichallowsthecontrolsystemmorereliable.Theexternalbatterynumbercanbeselectedfrom16/18/20pcsaccordingtotheBysettingthebatterycapacityconfiguredbyuserintheLCD,thereasonablechargingcurrentcanbeautomaticallyallocated.TheproperchargingcurrentcanbealsosetinLCD.Constantvoltagechargingmode,constantcurrentchargingmodeandfloatingchargingmodecanauto-switchsmoothly.Advancedtwo-way,three-stagechargingmethodisadopted.Atthefirststage,rechargewithconstantlargecurrentto90%capacity;atthesecondstage,constantvoltagechargecanactivatethebatterycharacteristicsandmakethebatteryfull;atthethirdstage,floatingmodeoperates.Thismethodcanprovideabalancebetweenthefastchargeandextendedthebatterylife,whichsavesthebatteryinvestment.LCDYDC9300SeriesUPShasbothLCDandLEDdisplay,whichallowsuserabetterunderstandingofUPSstatusandrunningparameterssuchasinput/outputvoltageandfrequency,loadcapacity,batterycapacity,internaltemperatureandect.TheremotemonitoringtoUPScanberealizedwithSNMPAnEPO(emergencypoweroff)buttoninterfacewheretheusercanaddEPObuttonisembeddedintherearpanelofUPSunit.PresstheEPObuttonforthreesecondsincaseofemergency,theUPSwillshutdown.OperatingFaultLCDdisplay

OFFbuttonONFigure2operatingTheLCDandLEDshowthestatusofFaultalarmRedUPSmodulefaultRedUPSmoduleGreenUPSmodulebypassGreenBypasspowerabnormaloroutofrange，orGreenBypassok，nobypassBatteryGreenUPSmoduleispoweredbyGreenGreenGreenUPSmodulemainsGreenUPSmodulenomainsEnterpower tochecktheUPSrunningstatusandINVERTERTurnoffinverterandtransfertobypassoutputinlinemode(bypassII SystemelectricalBypassBypassmainChargerFigure3.ModuleblockAsshownabove,Closethemainswitch,ifthemainsvoltage,frequencyandphasesequenceareintherange,UPSwillsoftstart.Whenbusvoltagerisesaround310V,ifthemainsvoltageandfrequencyareinthebypassvoltageandfrequencysettingrange,theUPSwilloutpoutfrombypass.ThenPFCboostbeginstoworkandthebusvoltagewillbeuptoabout370V.Inverterstarts.Whentheinverterisready,theDSPwillsendoutcommandtotransfertoinverter.Ifbypassvoltage,frequencyandphasesequencearenormal,theinvertervoltagewilltrackthebypasspowerandswitchtoinverteroutputwithoutinterruption,ortheUPSwilltransfertoinverterintermittently.InverterLEDonandbypassLEDoff,theinverterwillprovidepower.Ifthebatteryisnormal,theUPSwillactivatethechargertochargethebattery.UPSmoduledetectsmaintenanceair-switchatanytime.Whenremovethebaffleoftheswitch,modulewilltransfertobypassstatus.Nowclosethemaintenanceair-switchforsupplyingpowerfrombypass.Whenfinishmaintenance,theair-switchcannotbeopenuntilthemoduleisinbypass,oritwillcausethepowerdownofload.AC/DC&DC/DCprinciplecircuitBBACFigure4.AC/DC&DC/DCAsshownabove,A(yellowbox)showstherectifiercircuit,B(bluebox)showsthebatteryinputcircuit,C(otherpart)showstheboostcircuit.AandCformthePFCrectifiercircuitwhileBandCformthebatteryboostcircuit.AABGigure5.BypassandinverterAsshownabove,A(yellowbox)representsbypasscircuit,B(bluebox)showstheinvertercircuit,whichconvertstheBusvoltageintotheACoutput.Charging

Figure6.ChargingAsshownabove,chargerreducestheBusvoltagetoasuitablevoltagetochargetheIII UPSTable3YDC9300dataindexindex112V2Inputfrequency50±10%or60±10%3OutputvoltageNormal4Batteryinverter5OutputSine6Output7OutputHarmoniclinear8Non-linear9transient±NominalinputVoltagerecover20msinnerrecovertoACmode<->modetransferNon-interruptinterruptswitch：＜15ms(50Hz),＜13.33msNormalBatteryOutputactiveMaxchargeLongrunOverloadcapacityAexceed127%immediayNormal100%≤outputpower≤127%load，lastexceed127%immediayshutBatteryOverloadcapacityB100%≤outputpower≤110%load，lastratedoutput≤127%load，last10min，≤150%last1min，exceed150%immediayshutdownNormal100%≤outputpower≤110%load，last10minratedoutput≤127%load，last1min，exceed127%immediayshutBatteryNoiseUPSsystemregularserviceenvironment，MTBFlessthan100,000Outputshort-120msbreakoutput，buzzerringingLCDOutputexcesstemperatureHeatsinktemperatureexcess83℃，whilerectifier、inverter、systemchangebypassmodel，inbatterymodeimmediayshutdown1FulfilYD/T1095-2008IIon-lineUPSoverloadindexBatteryBatteryvoltageunderEOD，closebatteryOutputINV.overvoltagepoint+12.5%，undervoltage-FanfaultFanfaultLEDfaultlightrectifierinverterallclosedown,systemtransfertobypasslightningDUPSHullprotectwhitesilk、blackIV、UPSinternal picture7.UPSSmartcardslotCablepicture8.UPSInternalstructureofChargerandSPSboard

PFCinductorInverterandParalleland

Inputfusepicture9.UPSPFC

BUSRelaypicture9.UPSV PCBPFCinductorboardMainsPFCpowerboardINV.InductorboardINVLCInverterpowerFunctionControlboardUPSCommunicationFunctionoverview：Functionoverview：FanRelayboardVI、InspectionbeforeRoomenvironmentUPSUPSshouldbeinstalledinacool,dry,cleanandwell-ventilatedenvironment,suchastheroomtemperatureshouldbe<40℃,thehumidity≤95%when20℃,notobviousdustonthefloor,especiallywithoutanyconductivepowder.Theroonaircannotcontainacidmistorotherconductivemedium.Fordetail,pleaserefertotheusers’manualandotherThebatteryshouldbealsoplacedinacool,dry,cleanandwell-ventilatedenvironment.Theavailabletemperatureis15℃-25℃,typicallyis20℃.Theplacewherethebatterylocatedshouldkeeptheconstanttemperatureandfarawayfromheatandvents.UPSlocationTheusers’manualoffersthedetailedinstallationinstruction,itcanbereferredforThereisnoobstructioninthefront,aboveandbelowofUPS.Enoughspaceshouldbeleftforventilation.Airisprimarilycomesfromfrontdoor,socheckifthefrontdoorleaveenoughairinletUPSvisualParticularlyimportant:itisnecessarytohaveacomprehensiveinspectionofinternalandexternalofUPSChecktheexternalpowercableconnection（includeinputOutputphasesequencebatterypolarity、fastenboltandect.）Checkiftheparallelcablesareconnectedwell?Iftheyareroutedseparayfrompowercables? CheckiftheexternalsignalofthebatteryboxandLBS(whenneeded)connectionsaregoodorcorrect? Checkiftheinternalsignalcableisconnectedwell，ifthecableisloosedbyshakingitExternalcablesandswitchcapacityForpowercableselectionandconnectionmethod,pleaserefertotheusermanualandrelatedspecification.CheckifthebreakersratedcapacityofUPSinput、OutputanddistributjioncabinetareIftheNeutralandGroundcablesizemeetstheNeutralhasseparateinputandoutput，connecttothesameNeutralisnotCheckandconfirmallthecabinetsandcableductshavebeengroundedaccordingtothelocalprovisions.Ifthebatterybreakerboxisprovided,checkiftheconnectionofitisCheckiftheUPSinput/outputwiringisreasonableandthecableisnotincontactwithanysharpedgesofobjects.IftheuserinstalltheremotecontacttorealizetheEPOfunction,makesurethattheEPOcableisnotinterferencebyothermainpowersignalstoavoidUPSmisfunction.AbouthowtorealizetheEPOfunctionbyremotecontat,pleaserefertouser’smanual.Aboutothercontrolcablesconnction,pleaserefertotherelevantchaptersofuser’sExternalautoswitchingandgeneratorpowerdistributionConfirmthattheATSattheinputsideisthreelevelswitch,thatistheNeutralcannotbecutoff;ifitisfourlevel,confirmthatwhentransferbetweentwosources,neutalshouldmeeton-befor-offprinciple.IftheACandgeneratorcanbeselectedattheinputside,pleaseconfirmtheproperconnctionbetweenNeutralandGroundaccordingtotherelevantspecifications.BatteryBatteryexistsdangerofshort-circuitandpossiblycausesburningduetotheshort-circuitThevoltagemayreach100VDCwhenbatteryconntedinseries,whichhasdeadlydanger.Sokeepinmindtopreventelectricshock.Thetoolsmustbeusedwithinsulated Ifthebatteryhasliquidleakageorhousingdamaged,placeitintheant-acidcontaineranddealitaccordingtothelocalregulations.Iftheelectrolytetouchesyourskin,immediaywashitwithaplentyofThebatterymustbehandledwithreferencetolocalenvironmentalregulations.Focusonthefollowingaspects：Checkiftheconnectionamongbatteryisreliable,ifthescrewsaretightened,ifthereiscorrosionandconfirmthatallbatteryterminalsarecoatedwithinsulatingmaterial；Checkifthereatleast10mmintervalbetweentheverticalsideofthebatterytoensurethefreeflowoftheairaroundthebattery；Atleast150mmspaceshouldbeleftbetweenbatterytopandupperframeformonitoringandmaintenanceofthebattery;Checkifthebatterycabintorbatteryrackinstalledrealiably,ifthereisgoodgrounded.OnecablemustbeindividuallyconnectedbetweenbatterybreakerboxandUPS;AboutconnectionsbetweenbatterypackandUPS,batteryandbattery,batterypackandbatterypackandratedcapacityofbreaker,pleaserefertotheuser’smanualandrelevantrelevantspecifications;CheckifthewiringisreasonalbleandthecableisnotincontactwithanysharpedgesofIfthebatterycabinetisinstalledonaraisedfloor,thebatterypowercableandbreakercontrolledcablecanroutethroughthefloor;ifthebatterycabinetsareside-by-sideandinstalledonasolidfloor,cablescangointotheoutletholesatthebottomofthecabinetsidetoconnectthebatterycabinets;CheckandconfirmthatthecablesarecorrectlyandsafelyconnctedtothebatterytermainalblocksoftheUPS.Don’treversethebattery.Abouttheterminalblockdiagram,pleaserefertotheuser’smanual.VII、UPSGuidelinesforgoodTheUPSisalmostmaintenance-freeandisdesignedtohaveafailureratelessthan1%Periodicalserviceisonlyneededforthefans;theUPShasalowheatAbatterychangeafter3-6yearscanbeexpectedand,apartfromtheservicetothefan,itshouldnormallybetheonlyservicedonetotheunit.DuetothesizeoftheUPSandthehighlycomplexofthePCB,boardlevelrepairisnotmended,takethefollowingmeasuresinstead:Improvethereliabilityofthedesign；ReplacethePCBA；SecurityWarning：WhentheUPSisoperating,alltheelectronicpartsconnecteddirectlytothepowersupplyandallinternalcomponentsincludingthebatteryexisthighvoltage.Evendisconnectedfromthepowersupply,allinternalpartsincludingthebatterystillhavedangerousvoltage（exceptthecommunicationoutput）. Onlyauthorizedprofessionalswithrelevantknowledgecanopenthemachine,theotherscannotopenitformaintenance.Donotworkalone，asecond shouldbestandingbytoassistandrenderhelpincaseofaccident.Dangermayoccuronlyduringtheinstallationandmaintenance.Anyoperatinginanormalmannerissafe. IftheUPSisinneedofrepair,theprocessAoperationis mended（ThisissaeDisconnectoffforprocessA.Thespecificstepscanbeseeninchapter3.Iftheloadisnotallowedtoturnoff,pleaseenterthemaintenancebypassmodeformaintenance.FollowtheprocessB（refertochapterIIIforspecificinformation）.Pleasenotethatthedothemaintenanceinmaintenancebypassmodeisnotabsoluysafe，Partofcircuitsarestillatwork.Inmaintenancemode,theloadisdirectlyconnectedtothepowerviathebypass,sotheUPSwillnotprovideanyprotection.Toavoidelectrostaticdischargedamage，ensurethatthemaintenanceisundertheESDsafeconditionsworkonananti-staticgroundyourselfandtheunitwhenitisDonotwearmetalbraceletsanddonotshortcircuittheIftheUPSmustberepairedduringtheoperationsuchasmeasurement，Makesurethepowersupplyisisolated.Inthiscase,atransformercanbeusedbetweentheandWarning：whenUPSworks，alargeamountofenergyisstoredintheinternalBUScapacitor，noelectricitycannotbeguaranteedinsidetheUPSwithmainsisolation,soitneedsextraattentionwhenmaintenance.Disconnectallexternalinputpowerofthefaultmachineformaintenance，Afteropeningthecase,usethebleedresistortoreleasetheenergystoredinBUScapacitortoavoidinjuryto. IftheUPSisinneedofrepair,theprocessAoperationis mended（ThisissaeDisconnectoffforprocessA.Thespecificstepscanbeseeninchapter3.Iftheloadisnotallowedtoturnoff,pleaseenterthemaintenancebypassmodeformaintenance.FollowtheprocessB（refertochapterIIIforspecificinformation）.Pleasenotethatthedothemaintenanceinmaintenancebypassmodeisnotabsoluysafe，Partofcircuitsarestillatwork.Inmaintenancemode,theloadisdirectlyconnectedtothepowerviathebypass,sotheUPSwillnotprovideanyprotection.StepA：theloadmaybepoweredA1Turnofftheload，disconnectallinputpowersupplyandbattery；A2Puttheinput/output/batteryair-switchestoOFF；A3Removethe4screwsoftheUPS，takeoffthe*****************UPSmaintenanceworkA4closeandfixtheUPScoverA5TightenthefourA6Connectthemains/battery/load,switchonthebatteryair-breaker,presstheONbuttontoturnontheUPSA7IfUPShasnofault,itwillhasoutputwhenoutputair-switchisswitchedA8Switch-ontheinput-air-switch,theUPSwilltransfertomains,andcharge

A9StepB:TheloadmaynotbepoweredB1RemovethemaintenancescrewsandbafflestocheckwhetherthemachineenterthemaintenancebypassmodeB2IftheUPSgoestothemaintenancebypassmode，switchonthemaintenancebypassswitch，otherwisedothemaintenanceinaccordancewiththeprocessA；B3Removethe4screwsoftheUPS，takeoffthe*****************UPSmaintenanceworkB4closeandfixtheUPSB6Switchoffthemaintenanceswitch，installbafflesandscrews，theunitgoestothebypassmode；B7Ifboththemainsandbatteryarenormal，theUPSgoesintothelinemodeandchargingafteraperiodoftime；B8ThischapterprovidesinformationthatcanhelpyoutolocatefaultsinYDC9300UPS.Somedatamayhavetobemeasuredtofixthefault.Ifitneedstobemeasuredduringtheoperation,thedeviceshouldbeisolatedfromthemains.Inthiscase,atransformercanbeusedbetweendeviceandthepower.Italsoappliestothebypassinput.Warning：whenUPSworks，alargeamountofenergyisstoredintheinternalBUScapacitor，itcannotbeguaranteedthatthereisnoelectricityinsidetheUPSwithmainsisolation,soitneedsextraattentionwhenmaintenance.Disconnectallexternalinputpowerofthefaultmachineformaintenance.Afteropeningthecase,usethebleedresistortoreleasetheenergystoredinBUScapacitortoavoidinjuryto.WarningsandWhenfaultoccurs,makeanoteofthedisplay(refertocodetable)asthereferenceforNote:theUPSmainsinputswitchcannotbeOFFarbitrarilytoavoidelectricityFaultRecordthestatusofdisplay，thenfixthereasoninaccordancewiththefollowingIfloadchanges？(capacityorIfIfsmellyIfabnormalHightemperatureofUPSorambientPleaseensurethesafeconditionsbeforestartingthemaintenance.Pleasereadchapter2“Securityconditions”andchapter3“shutdown-disassembly/reassemblyUPS”；Afterremovethecase，checkingthefollowingitems:IftheCONNECTORorterminalsIfthetransformerorotherpartsburstordiscolorationespeciallythepowercomponentsontheheatsink?IscapacitorruptureorIfanypartsseriousblowupespeciallypowercomponentsonheatIftheunitfails，duetohigherprobabilitydamageoftheINV-POWERboard，replacethepowerboardisok.Ifanypowercomponentonthepowerboardisfoundedtoblowup,replaceaccordingtothe“replaceIffandoesn’tworkwithmainsinput,confirmthatiftheauxiliarypoweroftheINV-POWERboardisdamagedandneedstobereplacedChargershowsabnormal,checkifthechargingcircuitinthePFCpowerboardisdamagedandneedtobereplaced.ThedisplayhasnolightandresponsewhenconnectedNoNolightandresponseforReferRefertochapter2andchapter3foroperationReplacetheReplacethechargerReplacetheCheckIfthefuseisCheckifthe±15VinChargerboardisnormalBatteryEnsurethesafeconditionsbeforeanyoperation.Pleasereadchapter2《Securityconditionsandchapter3《shutdown-disassembly/reassemblyUPS》carefullyBecarefulwhendisconnectingthebattery.ShortcircuitwilldamagethebatteryorThebatterywiththesamebrand/type/dateofmanufactureis mendedtoensurealongbatterylife.Thevoltagedifferenceamongthebatteriesshouldnotmorethan±150 mendedtomeasurethevoltageofeachbatteyduringdischargetoensurethevoltagedifferencesnomorethan150mV。Thebatterypackcapacitywillbeaffectedifthereisoneormorebatteryvoltagesdiffertoomuch.Intheworstcase,itwilldamagetheotherbattery.Thevoltagedifferenceshouldbereducedafteralongperiodofhave，removeThoroughlycheckifalltheconnectionsareMeasurethetotalvoltageoftheClosethebatteryswitch（ifhaveThoroughlycheckifalltheconnectionsareMeasurethetotalvoltageoftheDevicesWarning：whenUPSworks,alargeamountofenergyisstoredintheinternalBUScapacitor,itcannotbeguaranteedthatthereisnoelectricityinsidetheUPSwithmainsisolation,soitneedsextraattentionwhenmaintenance.Disconnectallexternalinputpowerofthefaultmachineformaintenance.Afteropeningthecase,usethebleedresistortoreleasetheenergystoredinBUScapacitortoavoidinjuryto.PCBATheinternalvoltageoftheUPSishighenoughtocause alinjuryordeathEnsurethesafeconditionsbeforeanyoperation.Pleasereadchapter2《Securityconditionsandchapter3《shutdown-disassembly/reassemblyUPS》carefullyBecarefulwhendisconnectingthebattery.ShortcircuitwilldamagethebatteryorWhenpickandplacetheboard,ensurethattheoperatingnelandequipmentaregroundedwell.Thenewboardistakenoutfromtheanti-staticpackagingonlywhennecessary，theoldboardremovedfromtheUPSshouldbeimmediayplacedinanti-staticShutdowntheUPSaccordingtotheprocessAorBinchapterWhendisconnectanyconnectors,holdthemalewhilepullingthe（sometimesneedtopresstheconnectorsnaps，otherwise,itwillmakeconnectororPCBWhenre-installtheconnector,themaleandfemaleshouldbealigned，orthePCBorUPSwillbedamaged.ReplaceFourfansareEnsurethesafeconditionsbeforeanyoperation.Pleasereadchapter2《Securityconditions》andchapter3《shutdown-disassembly/reassemblyUPS》carefully.Operateaccordingtothesteps1-3ofprocessAorsteps1-3ofprocessBinchapterRemovetheupperandlowercoverscrewsofthebadUPS，removethecover，usethebleederresistortoreleasetheenergystoredintheBuscapacitor；RemovethefancablesoftheINVpowerRemoveallthescrewsoftheReplacewithanewInstalltheupperandlowercovers,screwsoftheContinuewiththesteps4-9inprocessAor4-8inprocessBinchapterVIII、SingleUPSWarning：WhenUPSisworking,theinternalBuscapacitorstoresalotofenergy.ButisolatedwithmainscannotguaranteecompleynoelectricityinsidetheUPSandneedextraattentionwhendothemaintenance.Whencutoffalltheexternalinputpowerdformaintenance,usethebleedresistortoreleasetheenergystoredinBuscapacitorafteropenthecasefirstlytoavoidcausinginjuryto Pleaserefertothe“UPSrepair/maintenance”,especiallythe“Securitymaintenanceconditions”and“Close-Disassembly/ReassemblyUPS”.StartupBeforestartup,confirmthattheinput/outputconnectioniscorrect,measurethepositiveandnegativebatteryvoltage,batterybreakeristemporarilyopenClosetheoutputCloseinputswitchesoftheUPS.ClosetheexternalmaininputswitchtostartbyAfterstart,checktheLCDtoseeifthedisplayofworkingmode,theVAofUPS,outputvoltagelevelandthefrequencyisthesamewiththeactualvalues(refertotheuser’smanual).Ifnotthesame,immediaydisconnectthemainstocheckorcallthecustomerservicehotlineSimulatemainspowerfailuretest:DisconnectexternalmaininputbreakerandcheckiftheUPScantransfertobatteryinv.Modeandtheoutputisuninterruptable.ThenclosetheexternalmainsbreakertoconfirmtheUPSenterthelinemode.Atlast,checkifthechargeandoutputarenormal.turnofftheoutputPressthe“OFF”buttonandkeepfornolessthan2seconds,UPSinverterLEDisOpenthebatteryOpentheinputswitch,UPSshutTocompleyisolatetheACpowersupply,theexternalgridinputswitchshouldbeopen.ThemaininputdistributionboardisusuallyawayfromtheUPS.Itisnecessarytoinformtheservice nelthattheUPSisinrepairbypostingalableonit.EmergencyshutdownKSTARtechnicalservice IX、ParallelsystemWarning：WhenUPSisworking,theinternalBuscapacitorstoresalotofenergy.ButisolatedwithmainscannotguaranteecompleynoelectricityinsidetheUPSandneedextraattentionwhendothemaintenance.Whencutoffalltheexternalinputpowerdformaintenance,usethebleedresistortoreleasetheenergystoredinBuscapacitorafteropenthecasefirstlytoavoidcausinginjuryto Pleaserefertothe“UPSrepair/maintenance”,especiallythe“Securitymaintenanceconditions”and“Close-Disassembly/ReassemblyUPS”.StartupAccordingtothestand-alonestartupsteps,setuptheworkingmode,ID,outputvoltagelevelandthefrequencyofeachUPS.TheIDmustbedifferentforeachunit.Uptofourunitscanbeparalleled.manualbatterycables.Measurethepositiveandnegativebatterypackvoltage，batterybreakeristemporarilyopened。EachsingleUPSneedtohaveaseparatebatterycabinet.ClosetheoutputCloseallinputswitchesoftheUPS.CloseexternalinputswitchtostartUPSfromAfterstartup,checktheLCDofallUPS,checkiftheVAandIDnumberisthesameactualvalue.Ifnotthesame,pleasecutoffmainsforcheckorcalltheserviceCloseallexternalbatterybreakersofallcabinets.CheckifthechargecurrentdisplayedinLCDisnormal.Pressthe“Off”buttononLCDdisplayforatleast2seconds,andtheUPSinverterindicationlightisoff.OpenInputswitchtoturnofftheOpenOutputEmergencyAccordingtothestand-aloneemergencyshutdownsteps,selectanyoneunitcanshutdownalltheoutputsofUPSintheparallelsystem.X SoftwareUseC2000emulatortoUseUSBorRS232communicationtoRemovethebaffleboardofthemaintenancebreaker,thenclosethebreaker,theUPSwilltransfertomaintenancemode.SelectthecomputerserialportatSelect2400atSelectSNMPatSelect07atDonotchangeat“7”&Click"11"tochoosetheburningclick“OK”ConnectUPStoIftheUPSprovidesaUSBinterface,useaUSBcabletoThefollowingfigureshowstheUPSisThefollowingfigureshowstheUPShasbeensuccessfullyupdated,click"OK"and"Closedevice"button,andthenclick"closebutton"toexit.Switchoffthemaintenanceswitch，installbafflesandscrews，theunitgoestothebypassmode；Ifboththemainsandbatteryarenormal，theUPSgoesintothelinemodeandchargingafteraperiodoftime.AppendixADifferenceamongtheeachpowermoduleofYDC9300SeriesmodularUPS(HighP1boardjumperHPM3300-RM2ControlandmeasureboardjumperHPM3300-SAmodule(rackRemark：J101/103/105/102/104/106forinvertercurrentlimitselection；J110/111/112/113/114/115forPFCsamplingresistorinparallelselection；J107/108/109/116(TEST1)/117(TEST2)/118/119formodelJ20/J30/J31forSAunitCANresistorselection；P4/P11foroutputandmaintenanceswitchstatus3PFCpower6PCSPFC---12PCSPFC---12PCS4board(diodeinsulatedsilicagelCeramic510PCS470U16PCS470U19PCS470U19PCSinductorwithhigh6INVpower(6PCS12PCS7HPM3300-maininput8HPM3300-bypassinput9HPM3300-inputSemi-finishedMax.10AWGFrontandrear12038-Front12025-0.75A,rear12038-1Output2InputterminalCopper34Battery560KVAsemi-chassis：1.4m1.4m200KVAsemi-finishedchassis：2m660KVAsemi-finished100KVAsemi-finished200KVAsemi-finishedFrombottomtotop,theparalleladapte