Leadshine Technology M760 User manual

User sManual
For
M760
HighPerformanceMicrosteppingDrive
Version 1.0
2009All RightsReserved
Attention:Pleaseread thismanual carefullybeforeusingthe Drive!
3/F, Block 2, NanyouTiananIndustrialPark, NanshanDist, Shenzhen, China
T: (86)755-26434369 F: (86)755-26402718
Website: www.leadshine.com E-Mail: [e-mail]
The contentinthismanualhasbeencarefullypreparedand isbelievedtobeaccurate,butno
responsibilityisassumedforinaccuracies.
Leadshinereservestherighttomakechangeswithoutfurthernoticetoanyproductshereinto
improvereliability,function ordesign.Leadshinedoesnotassumeanyliabilityarisingoutofthe
applicationoruseofanyproductorcircuitdescribedherein;neitherdoesitconveyanylicense
underitspatentrightsofothers.
Leadshine sgeneralpolicydoesnotrecommend theuseofitsproductsinlifesupportoraircraft
applicationswhereinafailureormalfunctionoftheproductmaydirectlythreatenlifeorinjury.
AccordingtoLeadshine stermsandconditionsofsales,theuserofLeadshine sproductsinlife
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damages.
2009byLeadshineTechnologyCompanyLimited.
AllRightsReserved

Contents
I
TableofContents
1. Introduction, FeaturesandApplications....................................................................1
Introduction...........................................................................................................1
Features.................................................................................................................1
Applications..........................................................................................................1
2. Specifications............................................................................................................1
ElectricalSpecifications........................................................................................1
OperatingEnvironmentandotherSpecifications..................................................2
MechanicalSpecifications.....................................................................................2
EliminationofHeat...............................................................................................2
3. PinAssignmentandDescription...............................................................................3
ConnectorP1 Configurations................................................................................3
SelectingActivePulseEdgeorActiveLevelandControlSignalMode...............4
ConnectorP2 Configurations................................................................................4
4. ControlSignalConnector(P1)Interface...................................................................5
5. Connecting theMotor................................................................................................5
Connectionsto4-leadMotors...............................................................................5
Connectionsto6-leadMotors...............................................................................6
HalfCoil Configurations...............................................................................6
FullCoil Configurations................................................................................6
Connectionsto8-leadMotors...............................................................................7
SeriesConnections........................................................................................7
ParallelConnections......................................................................................7
6. PowerSupplySelection............................................................................................7
RegulatedorUnregulatedPowerSupply..............................................................8
MultipleDrives.....................................................................................................8
SelectingSupplyVoltage.......................................................................................8
7. SelectingMicrostepResolutionand DriveOutputCurrent.......................................8
MicrostepResolutionSelection............................................................................9
CurrentSettings.....................................................................................................9
Contents
II
Dynamiccurrentsetting..............................................................................10
Standstill currentsetting..............................................................................10
8. Wiring Notes...........................................................................................................10
9. TypicalConnection..................................................................................................11
10. Sequence ChartofControlSignals.......................................................................11
11. ProtectionFunctions..............................................................................................12
Short-voltageandOver-voltageprotection.........................................................12
Over-currentProtection.......................................................................................12
ShortCircuit Protection.......................................................................................12
12. FrequentlyAskedQuestions..................................................................................12
ProblemSymptomsand PossibleCauses............................................................13
APPENDIX.................................................................................................................14
TwelveMonthLimited Warranty........................................................................14
Exclusions...........................................................................................................14
Obtaining WarrantyService................................................................................14
WarrantyLimitations...........................................................................................14
ContactUs...................................................................................................................15

M760MicrosteppingDriverManualV1.0
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1. Introduction,Featuresand Applications
Introduction
TheM760isahighperformancemicrosteppingDrivebasedonpure-sinusoidalcurrentcontrol
technology. Owingtotheabovetechnologyand theself-adjustmenttechnology(self-adjust current
controlparameters)accordingtodifferentmotors,thedrivenmotorscanrunwithsmallernoise,
lowerheating,smoothermovementand havebetterperformancesathigherspeedthanmostofthe
Drivesinthemarkets.It issuitablefordriving2-phaseand4-phasehybridsteppingmotors.
Features
lHighperformance, cost-effective
lSupplyvoltageupto+68VDC
lOutput currentupto6.0A
lSelf-adjustmenttechnology
lPure-sinusoidal currentcontroltechnology
lPulseinputfrequencyup to300KHz
lTTLcompatibleandopticallyisolatedinput
lAutomaticidle-current reduction
l16 selectableresolutionsindecimaland
binary, upto51,200steps/rev
lSuitablefor2-phaseand4-phasemotors
lSupportPUL/DIRand CW/CCWmodes
lShort-voltage,over-voltage,over-current
protections
Applications
Suitableforawiderangeofsteppingmotors,fromNEMAsize17to34.Itcanbeusedinvarious
kindsofmachines,suchasX-Ytables,engravingmachines,labelingmachines,lasercutters,
pick-placedevices,and soon.Particularlyadapttotheapplicationsdesiredwithlownoise,low
heating,highspeedandhigh precision.
2. Specifications
ElectricalSpecifications(Tj= 25 /77℉)
M760
Parameters Min Typical Max Unit
Output current 1.0 - 6.0(4.29RMS) A
Supplyvoltage +20 +48 +68 VDC
Logicsignal current 7 10 16 mA
Pulseinputfrequency 0 - 300 kHz
Isolationresistance 500 MΩ
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Operating EnvironmentandotherSpecifications
Cooling Natural CoolingorForcedcooling
Environment Avoiddust, oil fog andcorrosivegases
AmbientTemperature 0－40 (32℉－104℉)
Humidity 40%RH －90%RH
OperatingTemperature 70 (158℉)Max
OperatingEnvironment
Vibration 5.9m/s2 Max
StorageTemperature -20 －65 (-4℉－149℉)
Weight Approx. 280g(10oz)
MechanicalSpecifications(unit: mm [inch])
Figure 1:Mechanicalspecifications
*Recommend use sidemountingforbetterheatdissipation
EliminationofHeat
lDrive sreliableworkingtemperatureshouldbe<70 (158℉),and motorworkingtemperature
shouldbe<80 (176℉);

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lItisrecommendedtouseautomaticidle-currentmode,namelycurrentautomaticallyreduceto
60%whenmotorstops,soastoreduceDriveheatingand motorheating;
lTheDrivemustbemountedverticallytomaximizeheatsinkareaasshowninthefollowing
picture. Useforcedcoolingmethodtocool thesystemifnecessary.
.
3. PinAssignmentand Description
TheM760hastwoconnectors,connectorP1forcontrolsignalsconnections,andconnectorP2for
powerandmotorconnections.Thefollowingtablesarebriefdescriptionsofthetwoconnectors.
Moredetaileddescriptionsofthepinsandrelatedissuesarepresentedinsection4,5, 9.
ConnectorP1 Configurations
PinFunction Details
PUL+
PUL-
Pulsesignal: Insinglepulse(pulse/direction)mode,thisinputrepresentspulse
signal, eachrisingorfallingedgeactive(setbyinsidejumperJ1);4-5Vwhen
PUL-HIGH,0-0.5VwhenPUL-LOW.Indoublepulsemode(pulse/pulse),
thisinputrepresentsclockwise(CW)pulse，activeathighlevelorlowlevel
(setbyinsidejumperJ1,J2).Forreliableresponse,pulsewidthshouldbe
longerthan1.5μs.Seriesconnectresistorsforcurrent-limitingwhen+12Vor
+24Vused. ThesameasDIRandENAsignals.
Important NOTE：Thedrivermustbemountedvertically onto
aplateoraheatsinkingtomaximizeheatsinkareaasshown
intheabovepicture.Pleaseuseadditionalheatsinkingorcool
fanifnecessary.
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DIR+
DIR-
DIRsignal: Insingle-pulsemode,thissignalhaslow/highvoltagelevels,
representingtwodirectionsofmotorrotation;indouble-pulsemode(setby
insidejumperJ3),thissignaliscounter-clock(CCW)pulse，activeathigh
levelorlowlevel(setbyinsidejumperJ1,J2).Forreliablemotionresponse,
DIRsignalshouldbeaheadofPULsignalby5μsatleast. 4-5Vwhen
DIR-HIGH,0-0.5VwhenDIR-LOW.Pleasenotethatrotationdirectionisalso
relatedtomotor-Drivewiringmatch.Exchangingtheconnectionoftwowires
foracoil totheDrivewillreversemotiondirection.
ENA+
ENA-
Enablesignal: Thissignalisusedforenabling/disablingtheDrive.Highlevel
(NPNcontrolsignal,PNPand Differentialcontrolsignalsareonthecontrary,
namelyLowlevelforenabling.)forenablingtheDriveandlowlevelfor
disablingtheDrive.Usuallyleft UNCONNECTED (ENABLED).
SelectingActivePulseEdgeorActiveLevelandControlSignalMode
TherearethreejumpersJ1,J2andJ3insidetheM760 specificallyforselectingactivepulseedgeor
effectiveleveland controlsignalmode,asshowninfigure2.DefaultsettingisPUL/DIRmodeand
risingedgeactive(NPN, and PNPcontrolsignalisonthecontrary).
(a)J1, J2, J3opencircuit (b)J1, J2opencircuit, J3shortcircuit
PUL/DIRmode andActive atrisingedge (NPN) PUL/DIRmode andactive atfalling edge (NPN)
(c)J2, J3opencircuit, J1shirtcircuit (d)J1,J2, J3shortcircuit
CW/CCWmode andactiveCW/CCWmode andactive
atlowlevel(The fixedlevel)athigh level(The fixedlevel)
Figure 2:J1, J2andJ3jumpers
ConnectorP2 Configurations
PinFunction Details
+V Powersupply, 20~68VDC,IncludingvoltagefluctuationandEMFvoltage.
GND PowerGround.
A+,A- MotorPhaseA
B+, B- MotorPhaseB

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4. ControlSignalConnector(P1)Interface
TheM760canacceptdifferential andsingle-endedinputs(including open-collectorandPNPoutput).
TheM760has3opticallyisolatedlogicinputswhicharelocatedonconnectorP1toacceptlineDrive
controlsignals.Theseinputsareisolatedtominimizeoreliminateelectricalnoisescoupledontothe
drivecontrolsignals.Recommend uselineDrivecontrolsignalstoincreasenoiseimmunityofthe
Driveininterferenceenvironments.Inthefollowingfigures,connectionstoopen-collectorandPNP
signalsareillustrated.
Figure 3:Connectionstoopen-collectorsignal(common-anode)
Figure 4:ConnectiontoPNPsignal(common-cathode)
5. ConnectingtheMotor
TheM760 candriveany2-pahseand4-pahsehybridsteppingmotors.
Connectionsto 4-leadMotors
4leadmotorsaretheleastflexiblebuteasiesttowire.Speedandtorquewilldepend onwinding
inductance.InsettingtheDriveoutputcurrent,multiplythespecifiedphasecurrentby1.4to
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determinethepeakoutput current.
Figure 5:4-leadMotorConnections
Connectionsto 6-leadMotors
Like8leadsteppingmotors,6leadmotorshavetwoconfigurationsavailableforhighspeedorhigh
torqueoperation. Thehigherspeedconfiguration,orhalfcoil,issodescribedbecauseit usesonehalf
ofthemotor sinductorwindings.Thehighertorqueconfiguration, orfullcoil,usesthefullwindings
ofthephases.
HalfCoilConfigurations
Aspreviouslystated,thehalfcoilconfigurationuses50%ofthemotorphasewindings.Thisgives
lowerinductance, hence,lowertorqueoutput. Liketheparallel connectionof8leadmotor, thetorque
outputwillbemorestableathigherspeeds.Thisconfigurationisalsoreferredtoashalfchopper.In
settingtheDriveoutputcurrentmultiplythespecifiedperphase(orunipolar)current ratingby1.4to
determinethepeakoutput current.
Figure 6:6-leadmotorhalfcoil (higherspeed)connections
FullCoilConfigurations
Thefullcoil configurationonasixleadmotorshouldbeusedinapplicationswherehighertorqueat
lowerspeedsisdesired.Thisconfigurationisalsoreferredtoasfullcopper.Infull coil mode,the
motorsshouldberunatonly70%oftheirratedcurrenttopreventoverheating.
Figure 7:6-leadmotorfull coil (highertorque)connections

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Connectionsto 8-leadMotors
8leadmotorsofferahighdegreeofflexibilitytothesystemdesignerinthattheymaybeconnected
inseriesorparallel, thussatisfyingawiderangeofapplications.
SeriesConnections
Aseriesmotorconfiguration wouldtypicallybeusedinapplicationswhereahighertorqueatlower
speedsisrequired.Becausethisconfigurationhasthemostinductance,theperformancewillstartto
degradeathigherspeeds.Inseriesmode,themotorsshouldalsoberunat only70%oftheirrated
currenttopreventoverheating.
Figure 8:8-leadmotorseriesconnections
ParallelConnections
An8leadmotorinaparallel configurationoffersamorestable, butlowertorqueatlowerspeeds.But
becauseofthelowerinductance,therewill behighertorqueathigherspeeds.Multiplytheperphase
(orunipolar) currentratingby1.96,orthebipolarcurrent ratingby1.4, todeterminethepeakoutput
current.
Figure 9:8-leadmotorparallelconnections
6. PowerSupplySelection
TheM760canmatchmediumandsmallsizesteppingmotors(fromNEMAframesize17 to34)
madebyLeadshineorothermotormanufacturesaroundtheworld.Toachievegooddriving
performances,it isimportanttoselectsupplyvoltageandoutputcurrentproperly.Generallyspeaking,
supplyvoltagedeterminesthehighspeedperformanceofthemotor,whileoutputcurrentdetermines
theoutputtorqueofthedrivenmotor(particularlyatlowerspeed).Highersupplyvoltagewillallow
highermotorspeedtobeachieved,atthepriceofmorenoiseand heating.Ifthemotionspeed
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requirementislow,it sbettertouselowersupplyvoltagetodecreasenoise,heatingand improve
reliability. Note:MEANWELL DRP-480S-48(48VDC, 480Watt powersupply)mustbe
selectedinordertomakethewholesystemcomplywithULstandardsforsafety.
RegulatedorUnregulatedPowerSupply
Bothregulatedand unregulatedpowersuppliescanbeusedtosupplytheDrive.However,
unregulatedpowersuppliesarepreferredduetotheirabilitytowithstandcurrentsurge.Ifregulated
powersupplies(suchasmostswitchingsupplies.)areindeedused,itisimportanttohavelarge
currentoutputratingtoavoidproblemslikecurrentclamp,forexampleusing4Asupplyfor3A
motor-Driveoperation. Ontheotherhand,ifunregulatedsupplyisused, onemayuseapowersupply
oflowercurrent ratingthanthatofmotor(typically50%～70%ofmotorcurrent).Thereasonisthat
theDrivedrawscurrentfromthepowersupplycapacitoroftheunregulatedsupplyonlyduringthe
ON duration ofthePWMcycle,butnotduringtheOFFduration.Therefore,theaveragecurrent
withdrawnfrompowersupplyisconsiderablyless thanmotorcurrent.Forexample,two3Amotors
canbewellsuppliedbyonepowersupplyof4Arating.
MultipleDrives
ItisrecommendedtohavemultipleDrivestoshareonepowersupplytoreducecost, ifthesupply
hasenoughcapacity.Toavoidcrossinterference, DONOT daisy-chainthepowersupplyinputpins
oftheDrives.(Instead,pleaseconnectthemtopowersupplyseparately.)
Selecting Supply Voltage
ThepowerMOSFETSinsidetheM760canactuallyoperatewithin+20 ~+75VDC,includingpower
inputfluctuationandbackEMFvoltagegeneratedbymotorcoilsduringmotorshaftdeceleration.
Highersupplyvoltagecanincreasemotortorqueathigherspeeds,thushelpfulforavoidinglosing
steps.However,highervoltagemaycausebiggermotorvibrationatlowerspeed,and itmayalso
causeover-voltageprotectionorevenDrivedamage.Therefore,it issuggestedtochooseonly
sufficientlyhighsupplyvoltageforintendedapplications,and itissuggestedtousepowersupplies
withtheoretical output voltageof+20~ +68VDC,leavingroomforpowerfluctuationandback-EMF.
7. SelectingMicrostepResolutionand DriveOutputCurrent
ThisDriveusesan8-bit DIPswitchtosetmicrostepresolution,andmotoroperatingcurrent, as
shownbelow:

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MicrostepResolutionSelection
MicrostepresolutionissetbySW5,6,7,8oftheDIPswitch asshowninthefollowingtable:
Microstep Steps/rev.(for1.8 motor) SW5 SW6 SW7 SW8
2 400 ON ON ON ON
4 800 OFF ON ON ON
8 1600 ON OFF ON ON
16 3200 OFF OFF ON ON
32 6400 ON ON OFF ON
64 12800 OFF ON OFF ON
128 25600 ON OFF OFF ON
256 51200 OFF OFF OFF ON
5 1000 ON ON ON OFF
10 2000 OFF ON ON OFF
20 4000 ON OFF ON OFF
25 5000 OFF OFF ON OFF
40 8000 ON ON OFF OFF
50 10000 OFF ON OFF OFF
100 20000 ON OFF OFF OFF
200 40000 OFF OFF OFF OFF
CurrentSettings
Foragivenmotor,higherDrivecurrentwillmakethemotortooutputmoretorque,butatthesame
timecausesmoreheatinginthemotorandDrive. Therefore, outputcurrentisgenerallyset tobesuch
thatthemotorwill notoverheatforlongtimeoperation.Since paralleland serialconnectionsof
motorcoilswill significantlychangeresultinginductanceandresistance,it isthereforeimportantto
setDriveoutputcurrentdependingon motorphasecurrent, motorleadsandconnection methods.
PhasecurrentratingsuppliedbymotormanufacturerisimportantinselectingDrivecurrent,however
theselectionalsodependsonleadsand connections.
Thefirst threebits(SW1,2, 3)oftheDIPswitchareusedtosetthedynamiccurrent.Select asetting
closesttoyourmotor srequiredcurrent.
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Dynamiccurrentsetting
PeakCurrent RMSCurrent SW1 SW2 SW3
1.45A 1.04A ON ON ON
2.08A 1.48A OFF ON ON
2.72A 1.94A ON OFF ON
3.37A 2.41A OFF OFF ON
4.05A 2.89A ON ON OFF
4.72A 3.37A OFF ON OFF
5.35A 3.82A ON OFF OFF
6.00A 4.29A OFF OFF OFF
Notes: Duetomotorinductance,theactualcurrentinthecoil maybesmallerthanthedynamic
currentsetting,particularlyunderhighspeedcondition.
Standstillcurrentsetting
SW4isusedforthispurpose.OFFmeaningthatthestandstill currentissettobehalfoftheselected
dynamiccurrent,andONmeaningthatstandstillcurrentissettobethesameastheselecteddynamic
current.
Thecurrentautomaticallyreducedto60%oftheselecteddynamiccurrentonesecond afterthelast
pulse.Theoretically,thiswillreduce motorheatingto36%(duetoP=I2*R)oftheoriginalvalue.If
theapplicationneedsadifferentstandstill current, pleasecontact Leadshine.
8. WiringNotes
lInordertoimproveanti-interference performance oftheDrive,itisrecommendedtouse
twistedpairshieldcable.
lTopreventnoiseincurredinPUL/DIRsignal,pulse/directionsignalwiresandmotorwires
shouldnotbetieduptogether.Itisbettertoseparatethembyatleast10cm,otherwisethe
disturbingsignalsgeneratedbymotorwilleasilydisturbpulsedirectionsignals,causingmotor
positionerror,system instabilityand otherfailures.
lIf apowersupplyservesseveralDrives,separatelyconnectingtheDrivesisrecommended
insteadofdaisy-chaining.
lItisprohibitedtopulland plugconnectorP2whiletheDriveispoweredON,becausethereis
highcurrentflowingthroughmotorcoils(evenwhenmotorisatstandstill).Pullingorplugging
connectorP2withpoweronwill causeextremelyhigh back-EMFvoltagesurge,whichmay
damagetheDrive.

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9.TypicalConnection
Acompletesteppingsystemshouldincludesteppingmotor,steppingDrive,powersupplyand
controller(pulsegenerator).Atypical connection isshownasfigure10.
Figure 10:Typicalconnection
10. SequenceChartofControlSignals
Inordertoavoidsomefaultoperationsanddeviations,PUL,DIRandENAshouldabidebysome
rules,shownasfollowingdiagram:
Figure 11:Sequence chartofcontrolsignals
Remark:
a) t1:ENAmustbeaheadofDIRbyatleast5µs.Usually,ENA+and ENA-areNC(not
connected).See “ConnectorP1Configurations”formoreinformation.
b) t2:DIRmustbeaheadofPULeffectiveedgeby5µstoensurecorrect direction;
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c) t3:Pulsewidthnotlessthan1.5µs;
d) t4:Lowlevelwidthnotlessthan1.5µs.
11. ProtectionFunctions
Toimprovereliability,theDriveincorporatessomebuilt-inprotectionsfeatures.
Short-voltageandOver-voltageprotection
Whenpowersupplyvoltageislowerthan+16VDC,short-voltageprotectionwill beactivatedandthe
powerindicatorLEDwillturnoff. Whenthepowersupplyvoltageisbacktonormal operationrange,
theDrivewillautomaticallyresetandpowerindicatorLEDwill turnon.
Whenpowersupplyvoltageexceeds+95VDC,over-voltageprotectionwillbeactivatedandpower
indicatorLEDwillturnred.
Over-currentProtection
Protection willbeactivatedwhencontinuouscurrentreachesto16A.
ShortCircuitProtection
Protection will beactivatedincaseofshortcircuit betweenmotorcoilsorbetweenmotorcoiland
ground.
Whenaboveprotectionsareactive,themotorshaftwill befreeortheLEDwill turnred(except
short-voltageprotection).ResettheDrivebyrepoweringittomakeitfunctionproperlyafter
removingaboveproblems.
12. FrequentlyAskedQuestions
Intheevent thatyourDrivedoesn toperateproperly,thefirststepistoidentifywhethertheproblem
iselectricalormechanicalinnature. Thenextstepistoisolatethesystemcomponentthatiscausing
theproblem. Aspart ofthisprocess youmayhavetodisconnecttheindividual componentsthatmake
up yoursystemandverifythattheyoperateindependently.Itisimportanttodocumenteachstepin
thetroubleshootingprocess.Youmayneedthisdocumentationtoreferbacktoatalaterdate,and
thesedetailswill greatlyassistourTechnicalSupportstaffindeterminingtheproblemshouldyou
needassistance.
Manyoftheproblemsthataffectmotioncontrolsystemscanbetracedtoelectricalnoise,controller
softwareerrors, ormistakeinwiring.

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ProblemSymptomsand PossibleCauses
Symptoms PossibleProblems
Nopower
Microstepresolutionsettingiswrong
DIPswitchcurrentsettingiswrong
Fault condition exists
Motorisnotrotating
TheDriveisdisabled
Motorrotatesinthewrongdirection
Motorphasesmaybeconnectedinreverse
DIPswitchcurrentsettingiswrong
TheDriveinfault Somethingwrongwithmotorcoil
Control signal istoo weak
Control signal isinterfered
Wrongmotorconnection
Somethingwrongwithmotorcoil
Erraticmotormotion
Current settingistoo small, losingsteps
Current settingistoo small
Motorisundersizedfortheapplication
Accelerationissettoo high
Motorstallsduringacceleration
Powersupplyvoltagetoo low
Inadequateheatsinking/cooling
Automaticcurrentreductionfunction not beingutilized Excessivemotorand Driveheating
Current issettoo high
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APPENDIX
TwelveMonthLimitedWarranty
LeadshineTechnologyCo., Ltd.warrantsitsproductsagainstdefectsinmaterialsand
workmanshipforaperiodof12monthsfromshipment outoffactory.Duringthewarrantyperiod,
Leadshinewilleither,atitsoption,repairorreplaceproductswhichprovedtobedefective.
Exclusions
Theabovewarrantydoesnotextendtoanyproduct damagedbyreasonsofimproperorinadequate
handlingsbycustomer,improperorinadequatecustomerwirings,unauthorizedmodificationor
misuse,oroperationbeyond theelectricalspecificationsoftheproductand/oroperationbeyond
environmentalspecificationsfortheproduct.
ObtainingWarranty Service
Toobtainwarrantyservice,areturnedmaterialauthorizationnumber(RMA)mustbeobtained
fromcustomerserviceate-mail: [e-mail] beforereturningproductforservice.
CustomershallprepayshippingchargesforproductsreturnedtoLeadshineforwarrantyservice,
and Leadshineshallpayforreturnofproductstocustomer.
Warranty Limitations
Leadshinemakesnootherwarranty,eitherexpressedorimplied,withrespecttotheproduct.
Leadshinespecificallydisclaimstheimpliedwarrantiesofmerchantabilityand fitnessfora
particularpurpose.Somejurisdictionsdonotallowlimitationsonhowlongandimpliedwarranty
lasts,sotheabovelimitationorexclusionmaynot applytoyou. However, anyimpliedwarrantyof
merchantabilityorfitnessislimitedtothe12-monthdurationofthiswrittenwarranty.
Shipping FailedProduct
If yourproductfailduringthewarrantyperiod,e-mailcustomerserviceat [e-mail] to
obtainareturnedmaterialauthorizationnumber(RMA)beforereturningproductforservice.
Pleaseincludeawrittendescriptionoftheproblemalongwithcontactnameandaddress.Send
failedproducttodistributorinyourareaor:LeadshineTechnologyCo., Ltd.3/F,Block2,Nanyou
TiananIndustrialPark,NanshanDist,Shenzhen,China. Alsoencloseinformationregardingthe
circumstancespriortoproductfailure.

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ContactUs
ChinaHeadquarters
Address: 3/F,Block2,NanyouTiananIndustrialPark,Nanshan District Shenzhen, China
Web: http://www.leadshine.com
SalesHotLine:
Tel: [phone](forAll)
86-755-2641-7674(forAsia,Australia,Africaareas)
86-755-2640-9254(forEurope,Americaareas)
Fax: [phone]
Email: [e-mail].
TechnicalSupport:
Tel: [phone]and86-755-2647-1129
Fax: [phone]
Email: [e-mail] and [e-mail].
LeadshineU.S.A
Address: 25Mauchly, Suite318Irvine, California92618
Tel: [phone]
Fax: [phone]
Web: http://www.leadshineUSA.com
Email: [e-mail] and [e-mail].
LeadshineHongKong
Address: Rm3,9/F,BlockE, WahLokIndustrialCenter,31-41 ShanMeiSt., FoTan,
Shatin,HongKong
Tel: [phone]
Fax: [phone]
Email: [e-mail].