Longtime LIV-10 User manual

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DCACPOWERINVERTER
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LIV‐10/LIV‐20/LIV‐30
UserManual
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SaveThisManual
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Pleasereadthismanualcarefullypriortostorage,installation,wiring,operationand
maintenanceofthePowerInverter.
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Thismanualcontainsimportantinstructionsandwarningsthatyoushouldfollowduringthe
storage,installation,wiring,operationandmaintenanceofthePowerInverter.Failureto
followtheseinstructionsandwarningswillvoidthewarranty.
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Pleasenotethatonlyqualifiedandtrainedtechniciancandoinstallation,wiring,operation
andmaintenanceofthePowerInverter.
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Contents
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Section1:SafetyInstruction‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1
1‐1NotesonUsingtheInstructionManual‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1
1‐2GeneralSafetyInstruction‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1
1‐2‐1InstallationandWiringCompliance‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1
1‐2‐2PreventingElectricalShock‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1
1‐2‐3InstallationEnvironment‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1
1‐2‐4PreventingFireandExplosionHazard‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1
1‐2‐5PrecautionWhenWorkingwithBatteries‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐2
1‐3PowerInverterRelatedGeneralSafetyInstruction‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐2
1‐3‐1PreventingParallelingofACOutput‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐2
1‐3‐2ConnectingtoMulti‐wireBranchCircuits‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐2
1‐3‐3PreventingDCInputOverVoltage‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐3
1‐3‐4PreventingDCInputUnderVoltage‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐3
1‐3‐5PreventingReversePolarityontheInputSide‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐3
Section2:Introduction‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐4
Section3:Outlook‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐5
3‐1FrontView‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐5
3‐2RearView‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐5
3‐3Ter minalBlockConnectingDiagram‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐6
3‐4OperationPanel‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ 7
Section4:Installation‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐8
4‐1UnpackingandInspection‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐8
4‐2InstallationandWiringCompliance‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐8
4‐3PreventingElectricalShock‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐8
4‐4InstallationEnvironment‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐8

4‐5CoolingByForcedAirFanVentilation‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐9
4‐6PrecautionsWhenWorkingwithBatteries‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐9
4‐7DCSideConnection‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐9
Section5:Operation‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐11
5‐1Start‐Up‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐11
5‐2Shutdown‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐11
5‐3SystemTest‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐11
5‐4PageDisplayOperationStatus‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐11
Section6:Troubleshooting‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐12
Section7:CommunicationPort‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐13
7‐1DryContact‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐13
7‐2RS232‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐13
Section8:Warranty‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐14
Section9:Specification‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐15
Section10:WiringDiagram‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐16
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Section1:SafetyInstruction
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1‐1NotesonUsingtheInstructionManual
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Failuretoobservethisinstructioncancausematerialdamageandimpairthefunctionof
thedevice.
Relatingtoadangerfromelectricalcurrentorvoltage.Failuretoobservethisinstruction
cancausematerialdamageandpersonalinjuryandimpairthefunctionofthedevice.
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1‐2GeneralSafetyInstruction
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1‐2‐1InstallationandWiringCompliance
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Installationandwiringmustcomplywiththelocalandnationalelectricalcodesandmustbedone
byacertifiedelectrician.
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1‐2‐2PreventingElectricalShock
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zAlwaysconnectthegroundingconnectiononthePOWERINVERTERtotheappropriate
groundingsystem.
zDisconnectallACandDCsideconnectionsbeforeworkingonanycircuitsassociatedwiththe
POWERINVERTER.PressingtheON/OFFbuttononthePOWERINVERTERtoOFFposition
maynotentirelyremovedangerousvoltages.
zBecarefulwhentouchingbareterminalsofcapacitors.Thecapacitorsmayretainhighlethal
voltagesevenafterthepowerhasbeenremoved.Dischargethecapacitorsbeforeworking
onthecircuits.
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1‐2‐3InstallationEnvironment
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zThePOWERINVERTERshouldbeinstalledindooronlyinawellventilated,cool,dry
environment.
zDonotexposetomoisture,rain,snoworliquidsofanytype.
zToreducetheriskofoverheatingandfire,donotobstructthesuctionanddischarge
openingsofthecoolingfan.
zToensureproperventilation,donotinstallinalowclearancecompartment.
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1‐2‐4PreventingFireandExplosionHazard
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WorkingwiththePOWERINVERTERmayproducearcsorsparks.Thus,thePOWERINVERTER
shouldnotbeusedinareaswherethereareinflammablematerialsorgasesrequiringignition
protectedequipment.Theseareasmayincludespacescontaininggasolinepoweredmachinery,
1

2
fueltanks,batterycompartments.
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1‐2‐5PrecautionwhenWorkingwithBatteries
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zBatteriescontainverycorrosivedilutedsulphuricacidaselectrolyte.Precautionsshouldbe
takentopreventcontactwithskin,eyesorclothing.
zBatteriesgeneratehydrogenandoxygenduringchargingresultinginevolutionofexplosive
gasmixture.Careshouldbetakentoventilatethebatteryareandfollowthebattery
manufacturerrecommendation.
zNeversmokeorallowasparkorflamenearthebatteries.
zUsecautiontoreducetheriskofdroppingametaltoolonthebattery.Itcouldsparkorshort
circuitthebatteryorotherelectricalpartsandcouldcauseanexplosion.
zRemovemetalitemslikerings,braceletsandwatcheswhenworkingwithbatteries.The
batteriescanproduceashortcircuitcurrenthighenoughtoweldaringortheliketometal
andthuscauseasevereburn.
zIfyouneedtoremoveabattery,alwaysremovethegroundterminalfromthebatteryfirst.
Makesurethatalltheaccessoriesareoffsothatyoudonotcauseaspark.
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1‐3PowerInverterRelatedGeneralSafetyInstruction
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1‐3‐1PreventingParallelingofACOutput
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zTheACoutputofthisPOWERINVERTERcannotbesynchronizedwithanotherACsourceand
hence,itisnotsuitableforparalleling.
zTheACoutputofthePOWERINVERTERshouldneverbeconnecteddirectlytoanelectrical
breakerpanel/loadcenterwhichisalsofedfromtheutilitypower/generator.Sucha
connectionmayresultinparalleloperationofthedifferentpowersourcesandACpower
fromtheutility/generatorwillbefedbackintothePOWERINVERTERwhichwillinstantly
damagetheoutputsectionofthePOWERINVERTERandmayalsoposeafireandsafety
hazard.Ifanelectricalbreakerpanel/loadcenterisfedfromanINVERTERandthispanelis
alsorequiredtobepoweredfromadditionalalternateACsources,theACpowerfromallthe
ACsourcesliketheutility/generator/POWERINVERTERshouldfirstbefedtoamanual
selectorswitchandtheoutputoftheselectorswitchshouldbeconnectedtotheelectrical
breakerpanel/loadcenter.
zTopreventpossibilityofparallelingandseveredamagetothePOWERINVERTER,neverusea
simplejumpercablewithamaleplugonbothendstoconnecttheACoutputofthePOWER
INVERTERtoahandywallreceptacleinthehome/RV.
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1‐3‐2ConnectingtoMulti‐wireBranchCircuits

3
zDonotdirectlyconnecttothehotsideofthePOWERINVERTERtothetwohotlegsofthe
115/230VACelectricalbreakerpanel/loadcentrewheremulti‐wire(commonneutral)
branchcircuitwiringmethodisusedfordistributingofACPower.Thismayleadto
overloading/overheatingoftheneutralconductorandisariskoffire.
zAsplitphasetransformer(IsolatedorAutotransformer)ofsuitablewattagerating(25%
morethanthewattageratingofthePOWERINVERTER)withprimaryof115VACand
secondaryof115/230VAC(two115VACsplitphases180degreesapart)shouldbeused.
Thehotandneutralofthe115VACoutputofthePOWERINVERTERshouldbefedtothe
primaryofthistransformerandthe2hotoutputs(115VACsplitphases)andneutralfrom
thesecondaryofthistransformershouldbeconnectedtotheelectricalbreakerpanel/load
centre.
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1‐3‐3PreventingDCInputOverVoltage
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zItistobeensuredthattheinputvoltageofthePOWERINVERTERdoesnotexceed64VDC
for48VDCsystem;160VDCfor125VDCSystemtopreventpermanentdamagetothe
POWERINVERTER.
zDonotconnectthePOWERINVERTERtoabatterysystemwithavoltagehigherthanthe
ratedbatteryinputvoltage.
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1‐3‐4PreventingDCInputUnderVoltage
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zItistobeensuredthattheinputvoltageofthePOWERINVERTERdoesnotlowerthan42V
DCfor48VDCsystem;105VDCfor125VDCSystemtopreventpermanentdamagetothe
POWERINVERTER.
zDonotconnectthePOWERINVERTERtoabatterysystemwithavoltagehigherthanthe
ratedbatteryinputvoltage.
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1‐3‐5PreventingReversePolarityontheInputSide

Whenmakingbatteryconnectionontheinputside,makesurethatthepolarityofbattery
connectioniscorrect(Connectthepositive(＋)ofthebatterytothepositive(＋)terminalofthe
POWERINVERTERandthenegative(－)ofthebatterytothenegative(－)terminalofthe
POWERINVERTER).Iftheinputisconnectedinreversepolarity,thebuzzerwillalarmandauto
shutdown.

Section2:Introduction

ThankyouforselectingthisPOWERINVERTER.Itisastate‐of‐the‐artelectronicPOWER
INVERTERthatusesthelatesttechnology.
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TheLIVSeriesPOWERINVERTERisanadvancedpuresinewavePOWERINVERTERwhich
providesreliableregulated,transient‐freeACpowertosensitiveequipment,rangingfrom
computers&telecommunicationsystemstocomputerizedinstrument.
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BecausethePOWERINVERTERisconstantlyregulating,filteringtheoutputpower.
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TheLIVSeriesPOWERINVERTERhashighnonlinearloadcurrentcapability(i.e.CrestRatio3:1)
andthisissuitableforpoweringInductiveLoad,CapacitiveLoad,ResistiveLoad,etc.
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4

Section3:Outlook
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3‐1FrontView


StandardModel
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CustomizedModel

No.Description
1Ventilationexit
2Controlbuttons
3LCDdisplay
4LEDindicators
5BatteryN.F.B.
6ACinputN.F.B.
7ACoutputN.F.B.(option)
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3‐2RearView
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
48VDCModel
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
125VDCModel
5

No.Description
1Outputsocket
2Terminalblock
3RS232
4Drycontact
5Ventilationexit
6Batteryterminal
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3‐3TerminalBlockConnectingDiagram
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6

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3‐4OperationPanel
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No.Description
1Pageupbutton
2Menubutton
3ON/OFFbuttonorpagedownbutton
4ThegreenLEDisonwhenconnectstoACpower
5ThegreenLEDisonwhenconnectstoDCpower.
6TheredLEDisonmeansbypassmode
7ThegreenLEDisonmeansinvertermode
8ThegreenLEDisonmeansloadsconnected(>5%)
9TheredLEDisonmeansinverterfault
7

8
Section4:Installation
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4‐1UnpackingandInspection
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Unpackthepackagingandcheckthepackagecontents.Theshippingpackagecontains:
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zAPOWERINVERTER
zAusermanual
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InspecttheappearanceofthePOWERINVERTERtoseeifthereisanydamageduring
transportation.Donotturnontheunitandnotifythecarrieranddealerimmediatelyifthereis
anydamageorlackingofsomeparts.
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4‐2InstallationandWiringCompliance
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zInstallationandwiringmustcomplywiththelocalandthenationalelectricalcodesandmust
bedonebyacertifiedelectrician.
zTheDCinputpositiveandnegativeterminalsareisolatedfromthechassis.Similarly,the
neutralpoleoftheACreceptacles/theneutralwireisnotbondedtothechassis.System
groundingtosuitthenational/localelectricalcodesistobeundertakenbytheinstaller.
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4‐3PreventingElectricalShock
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AlwaysconnectthegroundingconnectiononthePOWERINVERTERtotheappropriate
groundingsystem.
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4‐4InstallationEnvironment
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zThePOWERINVERTERshouldbeinstalledindooronlyinawellventilated,cool,dry
environment.
zItisrecommendedtoretain10cmfromthewall.
zDonotexposetomoisture,rain,snoworliquidsofanytype.
zToreducetheriskofoverheatingandfire,donotobstructthesuctionanddischarge
openingsofthecoolingfans.
zToensureproperventilation,donotinstallinalowclearancecompartment
zWorkingwiththePOWERINVERTERmayproducearcsorsparks.Thus,thePOWERINVERTER
shouldnotbeusedinareaswherethereareinflammablematerialsorgasesrequiring
ignitionprotectedequipment.Theseareasmayincludespacecontaininggasolinepowered
machinery,fueltanks,batterycompartment.

9
4‐5CoolingByForcedAirFanVentilation
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ThePOWERINVERTERproducesheatwhenoperating.Theamountofheatproducedis
proportionaltotheamountofpowersuppliedbythePOWERINVERTER.ADCfanisusedto
provideforcedaircoolingofthisPOWERINVERTER.Thefanisthermostaticallycontrolledand
willbeswitchedononlyifthetemperatureofcertainhotspotinsidethePOWERINVERTERrises
aboveacertaintemperature.Atlowerloadsand/oratlowerambienttemperatures,thefan
maynotswitchonatall.Thisisnormal.Theunitisprotectedagainstover‐temperaturedueto
failureofthefan/inadequateheattransfer.TheACoutputwillbeshutdownifthehotspot
insidethePOWERINVERTERreachesacertainhighertemperature.
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4‐6PrecautionsWhenWorkingwithBatteries
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zBatteriescontainverycorrosivedilutedsulphuricacidaselectrolyte.Precautionsshouldbe
takentopreventcontactwithskin,eyesorclothing.
zBatteriesgeneratehydrogenandoxygenduringchargingresultinginevolutionofexplosive
gasmixture.Careshouldbetakentoventilatethebatteryareandfollowthebattery
manufacturerrecommendation.
zNeversmokeorallowasparkorflamenearthebatteries.
zUsecautiontoreducetheriskofdroppingametaltoolonthebattery.Itcouldsparkorshort
circuitthebatteryorotherelectricalpartsandcouldcauseanexplosion.
zRemovemetalitemslikerings,braceletsandwatcheswhenworkingwithbatteries.The
batteriescanproduceashortcircuitcurrenthighenoughtoweldaringortheliketometal
andthuscauseasevereburn.
zIfyouneedtoremoveabattery,alwaysremovethegroundterminalfromthebatteryfirst.
Makesurethatalltheaccessoriesareoffsothatyoudonotcauseaspark.
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4‐7DCSideConnection
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zFollowthisproceduretoconnectthebatterycablestotheDCInputterminalsonthePOWER
INVERTER.Yourcablesshouldbeasshortaspossible(ideally,lessthan10feet/3meters)
andlargeenoughtohandletherequiredcurrentinaccordancewiththeelectricalcodesor
regulationsapplicabletoyourinstallation
zCablesthatarenotanadequategauge(toonarrow)oraretoolongwillcausedecreased
POWERINVERTERperformancesuchaspoorsurgecapabilityandfrequentlowinputvoltage
warningsandshutdowns.
zTheselowinputvoltagewarningsareduetoDCvoltagedropacrossthecablesfromthe
POWERINVERTERtothebatteries.
zThelingerandnarrowerthesecables,thegreaterthevoltagedrop.
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Failuretoplaceafuseon”＋”cablesrunningbetweenthePOWERINVERTERand
batterymaycauseBarragetothePOWERINVERTERandwirevoidwarring.
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Theinstallationofafusemustbeonpositivecable.Failuretoplaceafuseoncables
runningbetweenthePOWERINVERTERandbatterymaycausedamagetothe
POWERINVERTERandwillvoidwarranty.
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10

Section5:Operation
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5‐1Start‐Up
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zPressON/OFFbuttonlastsfor2seconds
zToavoidtoucherrororpushbuttonfault,besuretopressON/OFFbuttonlastsfor2
seconds,tilltheLCDdisplay“WELCOMETOPOWERINVERTERWORLD”
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5‐2Shutdown

zPress“ON/OFF”buttonlastsfor2seconds
zToavoidtoucherrororpushbuttonfault,besuretopressthebuttonlastingfor2seconds.

5‐3SystemTest

zLCDdisplays”POWERINVERTERLOOPCHECK”.
zTest beforetheequipmentoperates.IfDCvoltageistoolow,overheatorotherabnormal
status,thepanelwillhavefaultdisplay,theunitwillautoshutdown5secondslater.

5‐4PageDisplayOperationStatus

Press  “PgUp”key,toselectPage1to4operationstatus

Page1:OutputVoltage&Frequency
OUTPUTVOLT:220V
FREQ:50.0HZ


Thebuilt‐inSoftStartfunctionwillhaveoutputvoltage
startfromlowtohigh,tillreachtonominaloutput
voltage,thenhaveitoutput.
Page2:OutputCurrent&SystemTe m p e rature
OUTPUTLOAD:0.0%0.0A
TEMP:‐‐℃
Page3:DCInputVoltage&Discharger
INPUTDC:125V
DISCH:xxA
Page4:MainsInputVoltage&Frequency
INPUTVOLT:220VAC
FREQ:50.0HZ
11

12
Section6:Troubleshooting

SYMPTOMPOSSIBLECAUSEREMEDY
Whenswitchingon,
theACINPUTGreen
LEDdoesnotlight.
Buzzerisoff.Thereis
noACVoltage
Thereisnovoltageatthe
DCinputterminal
1.Checkthecontinuityofthebattery
inputcircuit.
2.Checkthatthebatteryfuseisintact.
Replaceifblown.
3.Checkthatallconnectionsinthebattery
inputcircuitaretight.
LCDdisplays“DC
Volttoolow,can’t
turnon”,cannot
poweron.
DCinputvoltageisless
thanthelowestworking
voltage
1.UsetrueRMSreadingmeterto
measureiftheDCVoltagereachesto
thelowestworkingvoltage.(48VDC
System:42Vdc,125VDCSystem:
105Vdc)
2.VerifyifDCCableisloose.
3.VerifyifDCVoltage(48V/125VDC)
complytothePOWERINVERTERspec.
“FAULT”LEDlights
on,buzzeralarmsor
LCDdisplays
“OVERLOAD,can’t
turnon”,cannot
poweron.
Permanentshutdownof
theACoutputdueto
continuousoverload
beyondthecontinuous
powerratingofthe
POWERINVERTER.
1.Reducetheload.Theloadisnot
suitableasitrequireshigherpowerto
operate.UseaPOWERINVERTERwith
higherpowerrating.
2.Iftheunitgoesintopermanent
overloadagainafterresettingand
removingtheloadcompletely.Callfor
TechnicalSupport.
Buzzeralarmis
sounded.LCD
displays“Temp.too
high,can’tturnon”,
ThereisnoAC
output.
Shutdownduetoover
temperaturebecauseof
fanfailureorinadequate
coolingasaresultofhigh
ambienttemperatureor
insufficientairexchange.
1.Checkthatthefanisworking.Ifnot,
thefan/fancontrolcircuitmaybe
defective.CallTechnicalSupport.
2.Ifthefanisworking,checkthatthe
ventilationslotsonthesuctionside
andtheopeningsonthedischargeside
ofthefanarenotobstructed.
3.Ifthefanisworkingandtheopenings
arenotobstructed,checkthatenough
coolreplacementairisavailable.Also
checkthattheambientairtemperature
islessthan40℃.
4.Reducetheloadtoreducetheheating
effect.Afterthecauseofoverheating
isremovedandtheunitcoolsdown,it
willresetautomatically.


Section7:CommunicationPort

7‐1DryContact




7‐2RS232
−BaudRate:2400bps
−BitLength:8bit
−EndCode:1bit
−CorrespondingBit:None
PIN # DESCRIPTION I/O
RS-232 PINS ASSIGNMENT:RS-232 PINS ASSIGNMENT:RS-232 PINS ASSIGNMENT:RS-232 PINS ASSIGNMENT:RS-232 PINS ASSIGNMENT:RS-232 PINS ASSIGNMENT:RS-232 PINS ASSIGNMENT:
PIN # DESCRIPTION I/O PIN # DESCRIPTION I/O
13

14
Section8:Warranty

Sellerwarrantsthisproductforaperiodof1YEARfromthedateofshipment,ifusedin
accordancewithallapplicableinstruction,tobefreefromoriginaldefectsinmaterialand
workmanshipwithinthewarrantyperiod.Iftheproducthasanyfailureproblemwithinthe
warrantyperiod,Sellerwillrepairorreplacetheproductasitssolediscretionaccordingtothe
failuresituation.

Thiswarrantydoesnotapplytonormalwearortodamageresultingfromimporterinstallation,
operation,usage,maintenanceorirresistibleforce(i.e.war,fire,naturaldisaster,etc.),andthis
warrantyalsoexpresslyexcludesallincidentalandconsequentialdamages.

Maintenanceserviceforafeeisprovidedforanydamageoutofthewarrantyperiod.Ifany
maintenanceisrequired,pleasedirectlycontactwiththesupplierorSeller.

15
Section9:Specification

ModelLIV‐10LIV‐20LIV‐30
Rating1KVA2KVA3KVA
48Vdc19A38A57AMax.
Current125Vdc7.6A15A22A
VoltageRange
48VDC(42~64VDC)
125VDC(105~160VDC)
Option:110VDC(95~144VDC)
ConnectionsHard‐wiredConnection
DCInput
Efficiency>85%(FullLoad)
NominalVoltage110Vacor230Vac±25%
Frequency50or60Hz±3Hz
Utility
Power
(Bypass)ProtectionElectroniccircuits&ACcircuitbreaker
OutputPower800W1600W2400W
Max.SurgePower1200W2400W3600W
Voltage110Vacor230Vac±1%
VoltageRegulation<2%atLinearLoad
Frequency50or60Hz±0.1%AutoSensingbyACPowerSource
WaveformPureSineWave
THDDistortion<3%atLinearLoad
TransientResponse≦±10%,recoverto±1%within100ms(0~100%load)
CrestFactor3:1
PowerFactor0.8
Inverter
Output
CoolingSystemForcedVentilation
ShortCircuitInverterShutdown
Overload
105%~125%for60seconds
126%~150%for30seconds
>151%for1second;SwitchtoBypass
DCPolarityReverseAdvancedPolarityCheck(APC)
Protection
OverTemperatureAcousticWarningbeforeShut‐offandAutoRestart
INV‐Bypass8msTransfer
TimeBypass‐INV5ms
LCDDisplay
Input/Output:Voltage/Frequency,DC:Voltage/Current,
Loading:Current/Percentage,Temp.:Operation/Over,
PolarityReverse
Indicator
LEDDisplayACInput,Inverter/Bypass,Fault/Overload,DCInput
Communi‐
cationInterfacePortDryContactorRS‐232C
OperatingTemp.0℃~40℃
EnvironmentRelativeHumidity0~90%,non‐condensing
DimensionW430*D488*H89mm(2U)
MechanicalNetweight10.0kgs11.0kgs12.0kgs
＊Productspecificationissubjecttochangewithoutpriornotice.

Section10:WiringDiagram





16