Leadshine Technology DCS810S User manual

User sManual
For
DCS810S
DigitalDC ServoDriver
Revision 1.0
2009All RightsReserved
Attention:Pleaseread thismanual carefullybeforeusingthe driver!
3/F, Block 2, NanyouTiananIndustrialPark, NanshanDist, Shenzhen, China
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Contents
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TableofContents
1. Introduction, FeaturesandApplications..................................................................1
Introduction..........................................................................................................1
Features................................................................................................................1
Applications.........................................................................................................2
2. SpecificationsandOperating Environment.............................................................2
ElectricalSpecifications.......................................................................................2
MechanicalSpecifications....................................................................................3
EliminationofHeat..............................................................................................3
OperatingEnvironmentandParameters...............................................................3
3. Connections.............................................................................................................4
ConnectorConfiguration......................................................................................4
Generalinformation....................................................................................4
Moreabout+5V, PUL, DIR, ERR/RESSignals..........................................5
DIPSwitchSW1, SW2................................................................................5
ControlSignalConnections..................................................................................6
EncoderConnections............................................................................................6
RS232 Interface Connection.................................................................................7
TypicalConnections.............................................................................................7
4. ServoSetup.............................................................................................................8
Install Encoder......................................................................................................8
PreparePowerSupply..........................................................................................9
RegulatedorUnregulatedPowerSupply....................................................9
SelectingSupplyVoltage.............................................................................9
PrepareController................................................................................................9
SystemConnectionsandNoisePrevention........................................................10
WireGauge................................................................................................10
Contents
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CableRouting...........................................................................................10
Twisted Wires............................................................................................10
CableShielding.........................................................................................11
SystemGrounding.....................................................................................11
PowerSupplyConnection.........................................................................11
5. TuningtheServo...................................................................................................12
TestingtheServo................................................................................................12
TuningtheServo................................................................................................13
6. UsingTips.............................................................................................................15
SequenceChartofControlSignals....................................................................15
ProtectionFunctions...........................................................................................15
Over-currentProtection.............................................................................16
Over-voltageProtection............................................................................16
Under-voltageProtection..........................................................................16
PhaseErrorProtection...............................................................................16
EncoderErrorProtection...........................................................................16
Position FollowingErrorProtection.........................................................16
ProtectionIndications................................................................................17
ChangingDefault MotorDirection....................................................................17
MaximumPulseInputFrequency......................................................................17
APPENDIX...............................................................................................................19
TWELVEMONTHLIMITEDWARRANTY...................................................19
EXCLUSIONS...................................................................................................19
OBTAINING WARRANTYSERVICE.............................................................19
WARRANTYLIMITATIONS...........................................................................19
SHIPPING FAILEDPRODUCT.......................................................................20

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1. Introduction, Features and Applications
Introduction
TheDCS810SisadigitalDCservo driverdevelopedwithDSPandhighefficient
MOSFETtechnologies.Inposition control,it seasyfortheenduserstochange
steppingdriverstotheDCS810Swithoutchangingcontrolsystems,becauseits
inputcommandisPUL/DIRsignal,whichiscompatiblewiththatofstepping
drivers.Inlowpowermotion controlapplications,performancesofDCservo
systemsusingtheDCS810SarebetterthanthoseofdigitalACservo systemsin
velocity,precision,stability,oratleastasgood asthoseofdigitalACservosystems.
However,thecostoftheDCS810Sstaysatthepricelineofsteppingdriver,namely
farlowerthanthoseofACservodrivers.
ComparedtotheDCS810, theDCS810Sacceptssingle-endedencodersignalswhile
theDCS810 acceptsdifferentialencodersignals.
TheDCS810Sisveryeasytotuneandall parametersarevisible.PCbasedand
handheldconfiguration&tuningtools,includingProTuner(Windowsbasedsetup
software)and STU(Small servotuningunit)canmeetdifferenttuningenvironments
orrequirements.
Features
l18-80VDC, 0-20A, 20-400W.
lBasedonDSPcontroltechnologyand highsmoothservocontrolalgorithm.
lPCbasedandhandheldconfigurationtools, includingProTunerandSTU.
lFeedbackresolution ×4 encoderlinecount.
lPosition Followingerrorlockrangeadjustable
lElectronicgearratiofrom1/255 to255
lBuilt-inmotioncontrollerforself-testwithtrapezoidalvelocityprofile
lSupportPUL/DIRandCW/CCWcontrolsignals
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lOpto-isolatedinputs, supportsingle-endedsignals
l10 latesterrorsself-recordfunction
lOver-current,over-voltage,under-voltage,phaseerror,encodererror,position
followingerrorprotections
lSmall size, surface-mounttechnology
Applications
Suitableforawiderangeofequipmentsand instrumentssuchasinkjetprinters,mini
typeengravingmachines,andetc.Itperformsbetterinapplicationsrequirelow
noise,highvelocity,highprecisionandhighreliability.
2. Specifications andOperatingEnvironment
ElectricalSpecifications(Tj =25oC/77oF)
DCS810S
Parameters Min. Typical Max. Unit
Peakoutputcurrent 0 - 20 A
Supplyvoltage +18 - +80 VDC
Logicsignalcurrent 7 10 15 mA
Pulseinputfrequency 0 - 200 kHz
Isolationresistance 500 MΩ
Currentprovidedtoencoder 50 mA

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MechanicalSpecifications (unit:mm[inch])
Figure1:Mechanicalspecifications
EliminationofHeat
lDriver sreliableworkingtemperatureshouldbe<70 (158 ),and motor
workingtemperatureshouldbe<80 (176 );
lItisrecommendedtomountthedriververticallytomaximizeheatsinkarea.
OperatingEnvironmentand Parameters
Cooling Natural coolingorforcedcooling
Environment Avoiddust, oil fog andcorrosivegases
AmbientTemperature
0℃－50℃(32 －122 )
Humidity 40 –95%RH
OperatingEnvironment
Vibration 5.9m/s2Max
StorageTemperature -20℃－65℃(-4 －149 )
Weight Approx. 210g(7.4oz)
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3. Connections
ConnectorConfiguration
Generalinformation
Control SignalConnector
Pin Signal Description I/O
1 +5V Common +5Vpowerinput. I
2 PUL Pulsecontrolsignal.See moreinformation aboutPULin “More
about+5V, PUL, DIR, ERR/RESSignals”section. I
3 DIR Direction controlsignal.See moreinformationaboutDIRin “More
about+5V, PUL, DIR, ERR/RESSignals”section. I
EncoderSignalConnector
Pin Signal Description I/O
1 EB EncoderchannelB input. I
2 EA EncoderchannelAinput. I
3 E+5V Positive pole ofthe auxiliarypowersupply(50 mA(Max)). O
4 EGND Groundofthe auxiliarypowersupply. GND
5 ERR/RES Alarmsignaloutput(+5V)orrestartsignalinput(+5V). O
PowerConnector
Pin Signal Description I/O
1 Motor+ Motorpositive connection. O
2 Motor- Motornegative connection. O
3 +VDC +18 TO80VDCpowerinput. I
4 GND Powerground. GND
RS232 CommunicationConnector
Pin Signal Description I/O
1 NC Notconnected. -
2 +5V +5VpoweronlyforSTU. O
3 TxD RS232 transmit. O
4 GND Ground. GND
5 RxD RS232 receive. I
6 NC Notconnected. -

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Moreabout+5V, PUL, DIR, ERR/RESSignals
PinFunction Details
+5V +5VOpto-couplerpowersupply.
PUL
Pulsesignal: Insinglepulse(pulse/direction)mode,thisinputrepresents
pulsesignal, eachrisingorfallingedgeactive(softwareconfigurable);4-5V
whenPUL-HIGH,0-0.5VwhenPUL-LOW.Indoublepulsemode
(pulse/pulse),thisinputrepresentsclockwise(CW)pulse，activebothathigh
levelandlowlevel(fixedlevelsoftwareconfigurable).Forreliableresponse,
pulsewidthshouldbelongerthan2.5μs.Seriesconnectresistorsfor
current-limitingwhen+12Vor+24Vused.ThesameasDIRand ENA
signals.
DIR
DIRsignal: Insingle-pulsemode,thissignalhaslow/high voltagelevels,
representingtwodirectionsofmotorrotation;indouble-pulsemode
(softwareconfigurable),thissignaliscounter-clock(CCW)pulse，active
bothathighlevelandlowlevel(fixedlevelsoftwareconfigurable).For
reliablemotionresponse,DIRsignalshouldbeaheadofPULsignalby5μs
atleast. 4-5VwhenDIR-HIGH,0-0.5VwhenDIR-LOW.Pleasenotethat
rotationdirection isalsorelatedtomotor-driverwiringmatch.Exchanging
theconnectionsoftwowiresofthemotortothedriverand A/Bphasesignals
ofencoderwill reversemotiondirection.
ERR/RES
ERR/RESPin: UsedtooutputerrorandresettheDCS810Stoclearerrors.
+5VDCwhendriverisnormal.Ifprotectionfunctionssuchasover-voltage,
over-current, phaseerror,encodererror,position followingerrorare
activated,ERR/RESpinwill bepulledtoLOWlevel (EGND). Only Position
FollowingErrorcanbeclearedbyconnectingtheE+5VtoERR/RES,and
theusersshouldrepowerthedrivertoclearothererrorsafterremovingother
relatedproblem(s).
DIPSwitchSW1, SW2
TherearetwoDIPswitches(SW1andSW2)canbeusedtoselect4group servo
parametersstoredinEEPROMofthedriver.Theusercanselectonegroupofthese
servoparameterstooptimizetheperformancefordifferentapplications,inwhich
usingdifferentmotorsorhavingdifferentload.Formostapplications,thesetwoDIP
switchesshouldbebothonOFF position (FactoryDefault Status),saving/selecting
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theuser sownservoparameters, NOTother3 group fordedicatedapplications.
ControlSignalConnections
TheDCS810Shas2opticallyisolatedlogicinputstoacceptPUL/DIRcontrol
signals.Theseinputsareisolatedtominimizeoreliminateelectricalnoisescoupled
ontothecontrolsignals.Inthefollowingfigure,connectionstoopen-collector
controlsignalsareillustrated.
Figure2:Connectionstoopen-collectorcontrolsignal(common-anode)
EncoderConnections
TheDCS810Scanacceptencoderinputfromsingle-endedincrementalencoders.
Notethattwisted-pairshieldedcablingprovidesthebestimmunityinelectrically
noisyenvironments.
If theencoderdrainslessthan50mA, theDCS810Scansupplytheencoderdirectly,
and connectit asFigure3. Iftheencoderdrainsmorethan50mA,useanexternal
DCsupplyand connectitasFigure4.

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Figure3:TheDCS810Ssuppliesthesingle-endedencoderdirectly
Figure4:Usingexternal DCpowersupplytosupplytheencoder
RS232 Interface Connection
Figure5:RS232interfaceconnection
TypicalConnections
TwotypicalconnectionsoftheDCS810SareshownasFigure6. Pleaseconsult
“ControlSignalConnections”and “EncoderConnections”formoreinformation
aboutcontrollerand encoderconnections.
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Figure6:Typical connection(Open-collectorcontrolsignalandsingle-endedencoder.)
4. ServoSetup
Beforeyoustarttheservo,youcanfollowthebelowsteps.
InstallEncoder
If yourmotorhasnoencoder,youmusthaveanencoder(morethan200 lines)
properlymountedonthemotorbeforeyou start.Andpleaseassembletheencoder
according toitsfactorymanual.Pleaseuseshieldedcablesand separateencoder
signalcablefrominterferencesources,suchasmotorwiresandpowerwiresatleast
5 cm.

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PreparePowerSupply
RegulatedorUnregulatedPower Supply
Bothregulatedandunregulatedpowersuppliescanbeusedtosupplythedriver.
However,unregulatedpowersuppliesarepreferredduetotheirabilitytowithstand
currentsurge.Ifregulatedpowersupplies(suchasmostswitchingsupplies.)are
indeedused,it isimportanttohavelargecurrentoutputrating toavoidproblems
likecurrentclamp,forexampleusing4Asupplyfor3Amotor-driveroperation.On
theotherhand,ifunregulatedsupplyisused,onemayuseapowersupplyoflower
currentratingthanthatofmotor(typically50%～70%ofmotorcurrent). Thereason
isthatthedriverdrawscurrentfromthepowersupplycapacitoroftheunregulated
supplyonlyduringtheON durationofthePWMcycle,butnotduringtheOFF
duration.Therefore,theaveragecurrentwithdrawnfrompowersupplyis
considerablylessthanmotorcurrent.Forexample,two3Amotorscanbewell
suppliedbyonepowersupplyof4Arating.
Selecting Supply Voltage
TheDCS810Scanactuallyoperatewithin+18Vto+80VDC,including powerinput
fluctuation and backEMFvoltagegeneratedbymotorcoilsduring motorshaft
deceleration.Theratedvoltageofthemotorisanimportantparameterwhen
selecting supplyvoltage.Generallyspeaking,do notuseapowersupplyvoltage
morethan5voltsoftheratedvoltageofthemotor.Highervoltagemaycausebigger
motorvibrationatlowerspeed,andit mayalsocauseover-voltageprotectionor
evendriverdamage.
PrepareController
Prepareacontrollerwithpulseanddirectionsignals.However,theDCS810Shasa
built-inmotioncontrollerforself-testandServoTuning.Thebuilt-inmotion
controllercangeneratecontrolsignalwithtrapezoidalvelocityprofile.
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SystemConnectionsand NoisePrevention
Afterfinishingtheabovesteps,youcanconnectyourservosystem. Beforeyoustart,
makesurethatthepowerisoff.Connectyoursystemaccordingtoconnection
diagramsbefore, andpayattentiontothefollowing tipswhenwiring.
Wire Gauge
Thesmallerwirediameter(lowergauge),thehigherimpedance.Higherimpedance
wirewillbroadcastmorenoisethanlowerimpedance wire.Therefore,when
selectingthewiregauge,itispreferabletoselectlowergauge(i.e.largerdiameter)
wire.Thisrecommendationbecomesmorecriticalasthecablelengthincreases.Use
thefollowing tabletoselecttheappropriatewiresizetouseinyourapplication.
Current(A) Minimumwiresize(AWG)
10 #20
15 #18
20 #16
CableRouting
All contentsensitivesignalwiresshouldberoutedasfarawayfrommotorpower
wiresanddriverpowerwiresaspossible.Motorpowerand driverpowerwiresare
majorsourcesofnoiseandcaneasilycorruptanearbysignal.Thisissuebecomes
increasinglyimportantwithlongermotorpoweranddriverpowerwireslengths.
TwistedWires
Twistedwireseffectivelyincreasingnoiseimmunity.Thesuccessivetwistseliminate
noisetransientsalongthelengthofthecable.Bothsignalcablesandpowercables
shouldbeofthetwistedandshieldedtype.Differentialsignalwiresshouldbe
twistedasapair.Thecombinationoftwistedpairwiresandadifferentialsignal
significantlyaddstonoiseimmunity.Powerwiresshouldbetwistedasagroup

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alongwiththeground(orchassis)wire, ifavailable.
CableShielding
All signalwiresshouldbebundledandshieldedseparatelyfromdriverpowerand
motorpowerwires.Powerwiresshouldalsobebundledand shielded.When
groundingashield,therule-of-thumbistodosoatthe ‘source ofpowerwhile
leavingtheothershieldendopen.Forexample,inthecaseofmotorpowerwires,
thiswouldbethedriveside.Ideally,twistedpairsshouldbeindividuallyshielded
andisolatedfromtheoutershield,whichencompassesall wireswithinthecable.
However,since thistypeofstringentshieldingpracticeisoftennotrequired,typical
cablesdonotprovideisolationbetweeninnerandoutershields.
SystemGrounding
Goodgroundingpracticeshelpreduce themajorityofnoisepresentinasystem.All
common groundswithinanisolatedsystemshouldbetiedtoPE(protectiveearth)
througha ‘SINGLE lowresistance point.AvoidingrepetitivelinkstoPEcreating
groundloops,whichareafrequentsource ofnoise.Centralpointgroundingshould
alsobeappliedtocableshielding;shieldsshouldbeopenononeendandgrounded
ontheother.Closeattentionshouldalsobegiventochassiswires.Forexample,
motorsaretypicallysuppliedwithachassiswire.Ifthischassiswireisconnectedto
PE,butthemotorchassisitselfisattachedtothemachineframe,whichisalso
connectedtoPE,agroundloopwillbecreated.Wiresusedforgroundingshouldbe
ofaheavygaugeandasshortaspossible.Unusedwiringshouldalsobegrounded
whensafetodososincewiresleftfloatingcanactaslargeantennas,which
contributetoEMI.
Power Supply Connection
NEVER connectpowerandgroundinthewrongdirection,becauseit will damage
theDCS810Sdriver.ThedistancebetweentheDCpowersupplyofthedriveand
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thedriveitselfshouldbeasshortaspossiblesincethecablebetweenthetwoisa
sourceofnoise.Whenthepowersupplylinesarelongerthan50 cm,a
1000µF/100Velectrolyticcapacitorshouldbeconnectedbetweentheterminal
“GND”and theterminal “+VDC”.Thiscapacitorstabilizesthevoltagesuppliedto
thedriveaswell asfiltersnoiseonthepowersupplyline. Pleasenotethatthe
polaritycannotbereversed.
Itisrecommended tohavemultipledriversto shareonepowersupply toreducecost
ifthesupplyhasenoughcapacity. Toavoidcross interference, DONOT daisy-chain
thepowersupplyinputpinsofthedrivers.Instead,pleaseconnectthemtopower
supplyseparately.
5.TuningtheServo
TestingtheServo
You maywishtosecurethemotorsoit can tjumpoff thebench.Turnonthepower
supply,thegreen(Power) LEDwill light.TheDCS810Shasdefaultparameters
storedinthedriver.If thesystemhasnohardwareand wiringsproblem,themotor
shouldbelockedandthedrivershouldbeready.
If themotorjumpsslightlyandtheredLEDimmediatelyturnson(flickers),then
eitherthemotorortheencoderiswiredinreversal.Openthetuningsoftware
ProTunerand checkdriverstatusbyclicking Err_check.If it s PhaseError,then
reversalmotorwiresorexchangeencoderinputsandtryagain.If it s Encoder
Error,pleasecheckencoderanditswirings,andthentryagain.If it still doesn t
workafteryoufollowedall oftheprevioussteps,pleasecontactusat
[e-mail].
If theredLEDisoffandthemotorisnormal,thenyoucanstarttotunetheservo
withselectedtool. ProTuner and STU areavailablefortheDCS810S.

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TuningtheServo
Aservosystemiserror-driven.The “Gain”ofthesystemdetermineshowhardthe
servotriestoreducetheerror.Ahigh-gainsystemcanproducelargecorrecting
torqueswhentheerrorisverysmall.Ahighgainisrequirediftheoutputisrequired
tofollowtheinputfaithfullywithminimalerror.
Aservo motoranditsloadbothhaveinertia,whichtheservoamplifiermust
accelerateanddeceleratewhileattemptingtofollowachangeattheinput.The
presence oftheinertiawill tendtoresult inover-correction,withthesystem
oscillatingbeyondeithersideofitstarget.It scalledUNDERDAMPEDstatus.See
Figure13. Thisoscillationmustbedamped,buttoomuchdamping willcausethe
responsetobesluggish,namelycausethesystemtogetintoanOVERDAMPED
state.Whenwetuneaservo,wearetryingtoachievethefastestresponsewithlittle
ornoovershoot, namelygetaCRITICALLYDAMPEDresponse.
Figure13:Stepandimpulseresponses
Asmentionedinpreviouscontents,theDCS810Sisadigitalservo driverandits
inputcommandisPUL/DIRsignal.Inotherwords,stepresponsejustexistsineach
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stepcommandsignal.Foreachstepcommandsignalisaverysmallmovement,so
OVERSHOOTandSETTLING TIMEbetweeneachstepareverysmall,causing
youhardlycanseeastepresponsesuchasFigure13, eveniftheSETPOINTisa
verylargequantityandtheaccelerationisveryhigh.
However,ifyoutrytoevaluateperformancesofthedigitalservobyinvestigatingits
positiontracking-errororpositionfollowingerror,youmayfindit smucheasier
thaninvestigatingitsstepresponse.Theeasiestwaytogetatracking-erroror
positionfollowingerrorresponseistoinduce animpulseloadonthemotor.See
Figure13 at “time20”.
LeadshineofferaWindowsbasedsetupsoftware ProTuner toitscustomersfor
evaluatingservoperformances.Small servotuningunit STU (optional)isavailable
too, andit sforfieldtuningwithoutPC.
TuningservosystemsformedbytheDCS810Sdriverscanbesummarizedasthe
followingrules:
1. If servosystemisUNSTABLE,thenthefirstthingoftuningistostabilize
thesystem.Youcanincrease DerivativeGain of PositionLoop (Kd)or
decrease ProportionalGain ofPositionLoop(Kp)or IntegralGain of
Position Loop(Ki).
2. If servosystemisUNDERDAMPED,thenincreaseKdordecreaseKpor
Ki.
3. If servo systemisCRITICALLYDAMPED,thenstoptuningand
downloadtheparametersettingstothedriver sEEPROM.
4. If servosystemisOVERDAMPED,thendecreaseKdorincreaseKpor
Ki.
Pleasesee User’sManualforTuningtheDCS810SwithProTuner”formore
detail aboutServoTuning.

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6. UsingTips
Sequence ChartofControlSignals
Inordertoavoidsomefault operationsanddeviations,PUL,DIRandENshould
abidebysomerules, shownasthefollowingfigure:
Figure14:Sequence chart ofcontrolsignals
Notes:
a) t1:ENmustbeaheadofDIRbyatleast5µs.Usually, EN+ and EN-areNC
(notconnected). See Connections sectionformoreinformation.
b) t2:DIRmustbeaheadofPULeffectiveedgebyatleast5 µstoensure
correctdirection.
c) t3:Pulsewidthnotless than2.5 µs;
d) t4:Lowlevelwidthnotless than2.5 µs.
ProtectionFunctions
Toimprovereliability,thedriverincorporatessomebuilt-inprotectionfunctions.
TheDCS810SusesoneREDLEDtoindicatewhatprotectionhasbeenactivated.
TheperiodictimeofREDis5s(seconds),andhowmanytimestheREDturnson
indicateswhatprotectionhasbeenactivated.Becauseonlyoneprotectioncanbe
displayedbyREDLED,sothedriverwill decidewhaterrortodisplayaccordingto
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theirpriorities.See thefollowing ProtectionIndications tablefordisplaying
priorities.
Over-currentProtection
Protectionwillbeactivatedwhencontinuouscurrentexceeds20A,andREDLED
will turnononcewithineachperiodictime(5 s).
Over-voltageProtection
Whenpowersupplyvoltageexceeds85±1.5 VDC,protectionwill beactivatedand
REDLEDwill turnontwice withineachperiodictime(5 s).
Under-voltageProtection
Whenpowersupplyvoltageislowerthan16.5±1.5 VDC,protection willbe
activatedandREDLEDwill turnon threetimeswithineachperiodictime(5 s).
PhaseErrorProtection
Motorpowerlineswrong &notconnectedand encoderfeedbacksignalsA/Bphases
wrongconnectedwill activatethisprotection.REDLEDwill turnonfourtimes
withineachperiodictime(5 s).
Encoder ErrorProtection
Noencoderfeedbacksignalsorwrongencoderfeedbacksignalswill activatethis
protection. REDLEDwillturnonfivetimeswithineachperiodictime(5 s).
PositionFollowing ErrorProtection
WhenpositionfollowingerrorreachesPositionFollowingErrorLimitparameter
settinginthedriver,thisprotectionwillbeactivated.REDLEDwill turnonseven
timeswithineachperiodictime(5 s).

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Attention: Whenaboveprotectionsareactive,themotorshaftwillbefreeorthe
LEDwill turnred.Resetthedriverby repoweringit (ERR/RESsignalonlycanbe
usedtoclear “Position FollowingErrorProtection”error.)tomakeit function
properlyafterremoving aboveproblems.Sincethereisnoprotectionagainstpower
leads(﹢,﹣)reversal,it iscriticaltomakesurethatpowersupplyleadscorrectly
connectedtodriver. Otherwise, thedriverwillbedamagedinstantly.
ProtectionIndications
Priority
Time(s)ofON Sequence wave ofREDLED Description
1st 1 Over-currentprotection
2nd 2
Over-voltageprotection
3rd 3 Under-voltage protection
4th 4 Phase errorprotection
5th 5 Encodererrorprotection
6th 7 Position followingerror
protection
ChangingDefaultMotorDirection
TheDCS810SwillturnthemotorintheCWdirectionwhenthedirectioninputis
“high”(logical “1”). If insteadCCWispreferred, then:
1)Reversethe “motor+”and “motor-”leads.
2)Reversetheencoder “ChannelA”and “ChannelB”leads.
MaximumPulseInputFrequency
MaximumPulseInputFrequencyisthehighestfrequencythatthedrivercanaccept.
ToconvertthisfrequencytoRPM,usethefollowingformula:
D D
C
C
S
S
8
8
1
1
0
0
S
S
D
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Tel: [phone] Website: www.leadshine.com
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APPENDIX
TWELVEMONTHLIMITEDWARRANTY
LeadshineTechnologyCo., Ltd.warrantsitsproductsagainstdefectsinmaterials
and workmanshipforaperiodof12 monthsfromshippingdate. Duringthewarranty
period,Leadshinewilleither,atitsoption,repairorreplace productswhichproved
tobedefective.
EXCLUSIONS
Theabovewarrantyshall notapplytodefectsresultingfrom:improperor
inadequatehandlingbycustomer;improperorinadequatecustomerwiring;
unauthorizedmodificationormisuse;oroperationbeyondtheelectrical
specificationsoftheproductand/oroperationbeyondenvironmentalspecifications
fortheproduct.
OBTAININGWARRANTYSERVICE
Toobtainwarrantyservice,areturnedmaterialauthorization number(RMA)must
beobtainedfromcustomerserviceate-mail: [e-mail] beforereturning
productforservice.Customershall prepayshippingchargesforproductsreturnedto
Leadshineforwarrantyservice,andLeadshineshall payforreturnofproductsto
customer.
WARRANTYLIMITATIONS
Leadshinemakesnootherwarranty,eitherexpressedorimplied,withrespecttothe
product.Leadshinespecificallydisclaimstheimpliedwarrantiesofmerchantability
and fitness foraparticularpurpose.Somejurisdictionsdonotallowlimitationson
howlongandimpliedwarrantylasts,sotheabovelimitation orexclusionmaynot
applytoyou.However,anyimpliedwarrantyofmerchantabilityorfitness islimited
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tothe12-monthdurationofthiswrittenwarranty.
SHIPPINGFAILEDPRODUCT
If yourproductshouldfail duringthewarrantyperiod,e-mail customerserviceat
[e-mail] toobtainareturnedmaterialauthorizationnumber(RMA)
beforereturningproductforservice.Pleaseincludeawrittendescriptionofthe
problemalongwithcontactnameandaddress.Sendfailedproducttodistributorin
yourareaor:LeadshineTechnologyCo., Ltd.3/F,Block2, TiananIndustrialPark,
NanshanDist,Shenzhen,China.Alsoencloseinformationregardingthe
circumstancespriortoproductfailure.