步进电机PLC控制技术中英文对照外文翻译文献文档格式.docx
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步进电机PLC控制技术中英文对照外文翻译文献文档格式.docx
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TheshallowtreadsintothePLCcontroltechniqueanddevelopmenttrendofelectricalengineering
1.Sayall:
Alongwiththemicro-electronicstechniqueandthecalculatortechnicalhairExhibition,theprogrammableprefacecontrollerhasanadvancebyleapsandboundsofhairExhibition,itsfunctionhasalreadyoutrunalogiccontrolfarandfar,inproperorderThescopeofcontrol,ithasaneffecttocombinewithcalculator,canenterGotoimitatetocontrolmost,havealongrangecorrespondencefunctionetc..Have-ThepersoniscalleditthemodernDindustrycontrolsofthreepaypillargreatly(namelyPLC,robot,CAD/CAM)ita,currentlyprogrammablecontrollerBEappliedinmetallurgyextensively,Mineralindustry,machine,lightClassDrealm,automatefortheindustryProvidedtothereisthetoolofonedintThePLCcontrolsoftreadtoopenthewreathservoorganizationintotheelectricalengineeringshouldUsedforcombiningtoolmachinetoproduceanon-linenumbertocontrolaslipperypedestaltocontrolautomaticallyMake,cantheprovincegotothenumberofthatunittocontrolsystem,makingthatunitThecostofcontrollingthesystemlowers.
2、Whatisasteppermotor:
Steppermotorisakindofelectricalpulsesintoangulardisplacementof
theimplementingagency.Popularlittlelesson:
Whenthedriverreceivesasteppulsesignal,itwilldriveasteppermotortosetthedirectionofrotationatafixedangle(andthestepangle).Youcancontrolthenumberofpulsestocontroltheangulardisplacement,soastoachieveaccuratepositioningpurposes;
thesametimeyoucancontrolthepulsefrequencytocontrolthemotorrotationspeedandacceleration,toachievespeedcontrolpurposes.
Whatkindsofsteppermotorsub-:
Inthreesteppermotors:
permanentmagnet(PM),reactive(VR)andhybrid(HB)permanentmagnetstepperusuallytwo-phase,torque,andsmaller,stepangleof7.5degreesorthegeneral15degrees;
reactionstepisgenerallythree-phase,canachievehightorqueoutput,stepangleof1.5degreesisgenerally,butthenoiseandvibrationarelarge.80countriesinEuropeandAmericahavebeeneliminated;
hybridstepperisamixofpermanentmagnetandreactiveadvantages.Itconsistsoftwophasesandthefive-phase:
two-phasestepangleof1.8degreeswhilethegeneralfive-phasestepangleof0.72degreesgenerally.ThemostwidelyusedStepperMotor.Whatistokeepthetorque(HOLDINGTORQUE)
3、Treadintothebasiccharacteristicsofelectricalengineering:
(1)、treadgenerallyintotheaccuracyoftheelectricalengineeringfortreadintoCapeof3-5%anddon'
taccumulate.
(2)、tallesttemperatureswhichenterelectricalengineeringoutwardappearanceandallowtreadandleadintotheelectricalengineeringtemperaturehighcanmakethemagnetismmaterialofelectricalengineeringbackfirst,causethedintdescendthusisasforloseastep,sotheelectricalengineeringoutwardappearanceallowofthetallesttemperatureshouldbedecidedbysmallbackwithelectricalengineeringmagnetismmaterialandorder;
Speakgenerally,themagnetismmaterialbackstoorderallabovehavein130Canofevenbeupto200Cabove,sotreadcompletelynormalintotheelectricalengineeringoutwardappearancetemperaturein80-90C.
(3)、dintswhichenterelectricalengineeringwouldwithturntogoupbutdescendsoon,Whiletreadingtoturntomoveintotheelectricalengineering,electricalengineeringeachelectricityfeelingwhichroundasetmutuallywillbecomeoneanti-toelectromotiveforce;
Thefrequencyismorehigh,anti-toelectromotiveforcemorebig,biginitsfunction,theelectricalengineeringenlargeswiththefrequency(orspeed)butmutuallytheelectriccurrentletup,causingthedintdescendthus.
(4)、canrevolvenormallywhen4enterelectricalengineeringlowspeed,butifhighincertainthespeedcan'
tstart,andthecompanionhavearoartheinterjectiontreadtohaveatechniqueparameterintotheelectricalengineering:
emptycarrystartfrequency,thentreadintoelectricalengineeringatemptycarryundercircumstancecanstartnormallyofpulsefrequency,ifthepulsefrequencyishighinshouldbeworth.,Theelectricalengineeringcan'
tstartnormally,thepossibleoccurrencethrowsasteporblocksuptoturn.Underthesituationthatthereisoneload,thestartfrequencyshouldbemuchlowerifwanttomaketheelectricalengineeringattainhighspeedtoturntomove,thepulsefrequencyshouldhaveanaccelerationprocess,thenstartthefrequencyislower,thenpresscertainaccelerationtorisethehighhoped.Treadtoshowthecharacteristicsofwithitintotheelectricmotor,turnagesofmanufacturingtodevelopimportantusetoaccompanywithinthenumeralsmalltogetherofnumeralturntechnicalofdevelopmentandtreadintotheelectricalengineeringtechnicalexaltation,treadwillgetanapplicationinmorerealmsintotheelectricalengineering.
4、enteranelectricalengineeringcontrolsystemtoconstitute:
TreadisakindofperformanceorganizationthatwillgiveorgetanelectricshockapulseconversiontomovefortheCapeintotheelectricalengineering.Whentreadtoreceivetoapulsesignalintotheactuator,itdrivesasteptopressthedirectionofenactmenttoturntomoveanangleforfixingtobecalled"
treadtobeapartfromCape"
intotheelectricalengineering,itrevolvesone-stepcirculatewiththefixedangleonestep.CanpasscontrolpulsepiecetocontrolaCapetomovetoattainthepurposeofassurancemostandthus;
Canpasscontrolpulsefrequencytocontrolelectricalengineeringtobecomedynamicspeedandaccelerationinthemeantime,thepurposeattainedtoadjustthussoontreadsintotheelectricalengineering.Canbethespecialkindelectricalengineeringthatakindofcontroluses,makeuseofitdidn'
taccumulateerrormarginaccuracyto100todivide100ofcharacteristics,besuffusedwithtoapplyinvariousopenawreathcontrolPLCwhichenterelectricalengineeringtechnique.
5、SteppermotorofthePLCcontroltechnology:
Maketheimportationtreadtobesubjectedtoahomologouscontrolintototalamountandpulsefrequencyoftheimportationpulseofelectricalengineering.Establishthepulsesignaloccurrencethatapulsetotalamountandpulsefrequencycancontrolamachinethereforeandincontrol,software;
CanmakeuseofPLinfixedtimeamachinecomposingforthefrequencylowercontrolpulse,thepulsefrequencycanpassinfixedtimemachineinfixedtimeconstantcontrolpulseperiod,thepulseamountscontrolthencanestablishathepulsecounterC10bewhenthepulsenumberattaininitialvalue,countmachineC1.Theactioncutsoffpulsebacktrack,makingitstop,theservoorganizationtreadintotheelectricalengineeringhavenothepulseinputthenstopoperation,servoperformanceorganizationfixedpositionbeservoperformanceorganizationofwhenmovespeedtohavehigherrequest,canusePLChigh-speedpulse,DifferentPLCitthefrequencyofhigh-speedpulsecanreachto4000-6000Hzses.ThePLCisusedtoproducecontrolpulse,passingPLCplaitdistanceexportationseveralpulsescertainlythecontroltreadstoturnCapeintotheelectricalengineering,programmablecontrolleroutput'
scontrolthepulseenterselectricalengineeringtoswitchonelectricitysequencetoassignbythestephomologousofroundaset.ThePLCcontrolsoftreadcangoanallotmentmachinebyadoptionsoftwarewreathintotheelectricalengineering,thehardwarewreathgoesallotmentmachinetoadoptthePLCresourcesthatthesoftwreathtakesupmore,Treadespeciallytoroundasettocountmutuallyintotheelectricalengineeringbigshouldconsideradoptionhardwarewreathtogoallotmentmachinewellforlargeproductionlineat4,althoughthehardwarestructureisalittlebitalittlemorecomplicated,cansaveanexportationimportationoftakingupthePLCpoint,themarkethasavariousappropriationchipstochoosetousecurrently.Treadtoenlargetoseveraltenhighesthundredfoldsintotheoutput'
scontroloftheactuatorPLCoftheelectricalengineeringpowerpulse,volt,severalAnnearriveseveraltenseveralAnnesdriveanability,theexportationofgeneralPLCconnectstohavetocertainlydriveanability,butinsideusualtransistorflowexportationtoconnectanabilityonlyfortenseveralarriveseveraltenvolts,severaltenarriveseveral100millionAnnebuttreadtothenhaveseveralrequestintotheelectricalengineeringtothepowertenarriveup100volts,severalAnnearriveseveraltenAnnesdriveanabilitysoshouldadoptanactuatortooutputthepulsecarryonenlarging.
6、ApplicationfeaturesofPLC
(1)、Highreliability,stronganti-interference
Highreliabilityisthekeytoperformanceofelectricalcontrolequipment.PLCastheuseofmodernlargescaleintegratedcircuittechnology,usingthestrictproductionprocess,theinternalcircuitstotheadvancedanti-jammingtechnology,withhighreliability.ConstituteacontrolsystemusingPLC,andthesamesizecomparedtorelaycontactorsystem,electricalwiringandswitchcontactshavebeenreducedtohundredsoreventhousandsoftimes,faultalsogreatlyreduced.Inaddition,PLChardwarefailureswithself-detection,failurealarmtimelyinformation.Intheapplicationsoftware,applicationarealsoincorporatedintotheperipheraldevicefaultdiagnosisprocedure,thesystemisinadditiontoPLCcircuitsanddevicesotherthantheaccessprotectionfaultdiagnosis.Inthisway,thewholesystemextremelyhighreliability.
(2)、Fullyfurnished,fullyfunctional,applicability
PLCtotoday,hasformedaseriesproductsofvarioussizes,canbeusedforoccasionsofallsizeso
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