会员注册 | 登录 | 微信快捷登录 支付宝快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

   首页 人人文库网 > 资源分类 > DOC文档下载

外文翻译—基于PLC的感应电动机监控系统设计与实现 英文版.doc

  • 资源星级:
  • 资源大小:68.50KB   全文页数:4页
  • 资源格式: DOC        下载权限:注册会员/VIP会员
您还没有登陆,请先登录。登陆后即可下载此文档。
  合作网站登录: 微信快捷登录 支付宝快捷登录   QQ登录   微博登录
友情提示
2:本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3:本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

外文翻译—基于PLC的感应电动机监控系统设计与实现 英文版.doc

1MicrocomponentThicknessComprehensiveDetectingPlainTestControlSystemDesigningZhenweiDuanYanhuaLiDenrenKongChanganDiDepartmentofprecisioninstrumentofSchoolofMechanicalEngineeringinNUST,Nanjing,210094Phone08602584315471EMailwillendzw163.comAbstractThisarticleintroducestheoverallplanofthetestingcontrollingsystemoftheplatformfortestingthethicknessofthemicrocomponent,theworkingprincipleandthedesignmethod.Itintroducesthedrivingsystem,controlledbythePLCprogrammedcontrollingstepmotor,toaccomplishthetestingofmicrocomponentintheformofproductionchain.ItintroducesthecommunicationandcontrolmethodbetweenthethicknesstestingsensorandPC.ItdiscusseshowcanthePLCcontrollingmicrocomponentmaterialdistributionmachineaccomplishesdistributiontask,whengettingsortsignalsformPC.Itdiscussestherealizationmethod,inwhichallkindofstatusinoperatingprocesscanbetestedandthefaultcanbetolerated.Thissystemwasdebuggedinindustriallocationanditsfeasibilitywasprovedwell.keywordsmicrocomponent,detecting,classificationautomatization,ManipulateMicrocomponentisacriticalunitinairconditionandaircompressor,whosegeometrydimension,surfaceroughness,margintoleranceetcdeeplyeffectstherefrigerationandcalefactionofthem.Actuallyasthedemandofairconditionandaircompressoraremoreandmorevast,thedemandofmicrocomponentismoreandmorevasttooandthedegreeofaccuracyofmicrocomponentismoreandmorehigher.Nowafterthemicrocomponentwasmachiningedandproducted,whichwasmainlydetectedmanually,theverificationbecamewheretheshoepinches.Thetraditionalverificationmethodhastheproblemofslowvelocity,lowefficiencyandmaninducedfactoreffect.SowedevelopedthisMicrocomponentThicknessComprehensiveDetectingPlain.TheProgrammableLogicControllerofS7200catena,whichismadebytheSiemensandtheindustrialcontrolcomputerarethenucleusofthistopic.Wecombinationthedeeplyactivationcapability,thehighreliability,thesuperiorproportionalinyamongtheperformanceandthecost,theexpedientapplicationofTheProgrammableLogicControllerwiththedeeplydataprocessingcapability,theamicablerelationamongmanandcomputer,thehighadministrationhorizontaloftheindustrialcontrolcomputer,thenwedevelopthisMicrocomponentThicknessComprehensiveDetectingPlainTestControlSystem.Weachievetheautomatizationoftheexaminationofthemicrocomponentthicknessandtheexclusiveclassificationprocess,andenhancethelevelofautomatization,gettogetheronbettereconomiceffect.IThedesignofthemicrocomponentthicknesscomprehensivedetectingplainTheMicrocomponentThicknessComprehensiveDetectingPlainismadeupofthedrivingandmeasurementmechanics,theclassificationmechanicsandthecontrolsection.Inageneralway,theconcentratedanddecentralizedsystemcanbefallenintothreetiersthetopismanagementwhomanagesthewholesystemthemiddleisconcentratedsupervisorywhomonitor,controlanddeploythewholesystemthebottomisdecentralizedimplementation,whosetaskiscontrolthelocalsystem.Inthesystem,theindustrialcontrolcomputerundertakesthetaskbelongingtothetopandmiddleassupervisorymanagementPLCundertakesthebottomtaskascontrolimplementationtier2.Theindustrialcontrolcomputertransfersthemanagementdecision,controltask,controlparameteranddeploydictationtothecontroltierPLCbycommunicationcable,PLCtransferstheparameter,processcontrolanddatatothemanagementtierbycommunicationcable.Thefunctionflowchartofwholesystemisasfig1.2Fig1TheoverallstructureofthesystemATheautomateddetectingplainTheautomateddetectingplainismadeupofmeasurementplainandthedrivingmechanism.Measurementplainisthebasicreferenceofthemicrocomponentsgeometricalparameter,whosedegreeofaccuracyishigherthanthatofthemicrocomponent.Duringthemeasurementprocess,themicrocomponentslideswithsurfaceoftheoperatingboard.Inordertoguaranteethestationarityduringthedrivingprocess,andeschewtoleadintheadditivelapsetoengenderthedeformationbecauseoftheshockofthedrivingmechanics,thedrivingmechanicsexploitsthedesigningoffissionconstitutionalformulatodisbranchthemeasurementplainandthedrivingmechanics,thendescendtheinfluenceofthedrivingmechanicsbyalongway.Weneedtomeasurefivedotsonthediagonalofeverysurfaceitcanbetakenintoonedotinthecrossover.Inthisway,themicrocomponentnotonlyrotates90degree,butalsorollsover180degreeonthepipleline.Byprotractingfavourablebandyonthemeasurementplain,wecanmakethemicrocomponentrotatefavourableangulardegreeaccordingtotheprimarylocus,andtorealizetheturningofthemicrocomponentbydesigningthespatialtextureoftheindustrychain.BclassificationorganThemicrocomponentistransferredtotheclassificationorgandowntheslipway.TheclassificationorganclassifiesthemicrocomponentbyvirtueofcontrollingsteppermotortorotatehomologousangulardegreewhenthePLCacceptingclassificationinformation.ThePLCcontrolsthesteppmotorinthewayofPTO.PTOmodecanexportmuchimpulsetrain,andenableimpulsetraintoqueuetoestablishconduitline.Itcanbeclassifiedtwoenominationsincludingsingleconduitlineandmultipleconduitline1.Thissystemadoptsthemultipleconduitline,andestablishsthelistinvariablememoryblocktocontrolperiodictimeofoutputimpulseandpulsenumber,thenachievestocontrolthesteppermotorrateandangulardegreeexactly.ThePLCreckonsheterogeneousconditionsbyinductiveswitchintheclassificationprocess.Forinstance,thearrivalsignal,thealignsignal,theclassificationcompletionsignal.IfThePLCdiscoversfalsecondition,itwilldeliverhomologousalarmsignaltotheindustrialcontrolcomputer,thentheoperatingforcecaneliminatethebug.CThecontrolsectionThePLCisthenucleusofthecontrolsection,whichcarriedoutthecommandoftheindustrycontrolcomputerbythecommunicationofthem.WhentheindustrialcontrolcomputerinterfaceswithPLC,becausePLCexploitsstandardRS485,whichisnotcompatiblewiththeindustrialcontrolcomputerRS232,wemustswitchoverbyPC/PPIcommunicationcable2.Theindustrialcontrolcomputeristheadministratorofallthesystem,.Itcontrolsthesensortomeasuresthegeometricalparameterofthemicrocomponentontheindustrychain,andcalculatestogettheclassificationinformationofthemicrocomponent.ThePLCisthemanipulativenucleusofallthesystem,itcompletesthefacilitywhichincludestheactivationgoverning,theconditionsense,theimplementationofthedictationandsoon.ThePLCcontrolstheperformanceoftheclassificationmechanicsandthedrivingmechanicsbyacceptingtheinformationoftheindustrialcontrolcomputer.IIThedesignofthecontrolsystemAThecontroldemandofthesystemInordertoaccomplishthedetecting,transmissionandclassificationofthemicrocomponent,thesystemwasdemandedtoaccomplishthefunctionsasfollow1Canaccomplishthesteadytransmissionofthemicrocomponentinindustrychainandensurethequeueofthemicrocomponent,whichwasformedbyentryorderofthechain,wasorderlinessandSortcontrolsignalSensorsignalPTOoutputDrivecontrolControlsignalMeasurementplainPLCRS485IndustrycontrolcomputerRS232SortcontrolsystemPC/PPIMotor1Mtor2StatussignalStatussignal3integrality.2Thespeedofformerdrivingorganmustbenotfasterthanthelaterclassificationorgan,andattheleastensurewhentheclassificationorgandidntaccomplishedtheclassification,thereisnomicrocomponententrytheclassificationorgan.3Ensuretheclassificationorgancanautoresetwhenthestepmotorwasoutofstep.4Whennotonlyonemicrocomponententrytheclassificationorgan,theworkerwillbetoldthesystemwasintrouble.Inthemeantimethemotorcanbeestimatedwhetheritworkswellandtheangulardisplacementoutputiscorrect.5Thesystemmusthavecertainfaulttolerantcapacity,whenitoccurscommonerrors,thesystemcanrehabilitatebyitself.Butwhenthefatalerrorwasoccurred,thesystemcanclewthepossiblesortorapproximatelyorientation.BTheworkprincipleofcontrolsystemThecontrolsystemismainlymadeupofmotordrivingsection,communicationsection,statusdetectingsectionandalarmsection.EverysectiondefinedintheoutputandinputofPLCasfig2Fig2Thecontrolsystem1StepmotoranddrivingsectionThestepmotorisexecutecomponentwhichconvertstheelectricpulseoutputofPLCtoangulardisplacementorrectilinealdisplacementwhichisindirectproportiontotheelectricpulse.Theformerdrivingsectionstepmotormainlyaccomplishesthespeedcontroloftheindustrychain,andthelaterclassificationsectionmustaccuratelycontroltheoutputangulardisplacementanddirectionofthestepmotor.Whenthestepmotoroutofstepintheprocess,thephotoelectricencipherormustbeusedtocontrolthephaseoutputofthestepmotorandensuretheoutputaccordwiththepracticality.Thelaterclassificationsectionadoptsthemodeofautoresettoeliminatetheaccumulatederrorofthemotorandensurethatthemotoroutputcertainangulardegreefromzeropositioneverytime.2StatusdetectingandalarmdesignTheprocessstatusofthesystemcouldbeestimatedbyinductiveswitchwhichwerefixedinthecertainpositionofthesystem.Whenthestatusdidntaccordwiththegivenstatus,thesystemshouldalarm.Themodeofthealarmisdesignedinacoustoopticmode,accordingastheponderanceoftheerrors.3ThecommunicationofthePLCandthecomputer.Theprogramofthecommunicationport,includingtheparitybit,thelengthofthedataframes,realizedthecommunicationofthePLCandthecomputer.IIIThesoftwaredesignofthesystemThesoftwareoftheindustrycontrolcomputer,whichwasadoptedobjectorientedwindowsapplicationandprogrammedinBlandCcompiler,hadluxurioushumancomputerinteraction,multilevelmenudesignandwasoperatedeasily.UsingSTEP7Micro/WIN32programmedthecontrolsoftwareofPLC,whichbasedonWindowsapplicationanddesignedspeciallyforS7200seriesPLCofSiemens.Ithasthepowerfulfunction,wasmainlyusedtodevelopprogram,atthesametimealsousedtosupervisethestatusofprogramimplementationrealtime2.AThesoftwaredesignofPLCThesoftwareofPLCcanbeseparatedintomainprogramMain,normalsortprogramMicro_Sort,autoresetprogramAuto_Reset,interruptserviceroutineISRInterrupt,initializationroutineIni_Installanderrorhandlingprogrametcinstructural.Allthesubroutineswaredecidedwhichcouldbecalledbymainprogramaccordingtoindustrycontrolcomputerorexternalcommand.Themaincontrolflowchartgraphmanifestasfig3.Whenthesystemwaspowerup,theinitializationroutinewascalledtoaccomplishtheinitializationofwholesystemandthescanningofalltheinductiveswitch,whichwasaccordingaswhetherthesystemDirectioncontrolI0.2I1.7I0.0I0.1InputPLC226CommunicationportOutputQ0.5Q0.2Q0.1Q0.0AlarmdisplayManualcontrolinputStatusdetectingsensorMotor2MotordriverMotor1MotordriverPC/PPI4wasingear.ifnot,thePLCwillsendinitializationfailsignaltoindustrycontrolcomputerandwaitfortheworkertotreatwith.Iftheinitializationwasaccomplishedwell,thePLCwillsendreadysignaltotheindustrycontrolcomputer.Diagram2whentheindustrycontrolcomputerreceivedthesignal,thesystemwillbestartedtowork.Fig3ThecontrolflowchartofthePLCIntheworkingprocess,thePLCwasscaningalltheinductiveswitchtosupervisetheworkstateofwholesystem.Whenthesortorganreceivedthearrivesignalofmicrocomponent,thePLCwillcontrolthesortorgantosortthemicrocomponentaccordingtothesortsignal,whichreceivedfromindustrycontrolcomputer.Duetoithasnotonlyonesortitmayresultinsortmistakebecauseofbreakingstepofthemotor.Soafterejectingthemicrocomponent,thePLCjudgedwhetherthesortsignalwasaccordwiththecompletesignal.ifnot,thealarmwillbestartedandthesystemwillbehanged,thesorterrorwillbesendtoindustrycontrolcomputeraswell.B.SoftwarefaulttolerantdesignInthefaceofcomplicatedindustrycircumstance,softwarefaulttolerantwastheindispensabilitypartofthesystemrobustness.Theerrorsweresortedintofatalerrorandcommonerroraftercomprehensivelyconsideringallthepossibility.Inthesoftware,anerrorhandlingprogramwasespeciallydesigned.Whenanerrorappeared,PLCprogramjudgedthesortoftheerror,byreadingthecodeoftheerrorandthestateinformationofthesystem,andtreatedwithitaccordingtotheponderanceoftheerror.Thesystemalarmwasdesignedinsoundlightmodeanddifferencedaccordingtotheponderanceoftheerror.Inordertoavoidtheprogramwasoutofcontrol,thesoftwaretropwassettingintheblankmemoryofthePLC.Thetransferinstructionwasalsousedtomaketheprogram,whichwasoutofcontrol,jumpingtotheerrorhandlingprogram,andthesystemwouldsetright.Inthedetectingprocessofthemicrocomponent,themicrocomponentwasinthefirstinfirstoutqueue,whosemarkwasitssequencenumberinthequeue.Soitisimportanttokeeptheintegralityandorderlinessofthequeue.Oncethequeuewasdesequencing,theresultwasfatal.Thespeedofthesortsystemmustbefasterthanthemeasurementsysteminthiswaythesystemwasalwaysinthestateofslowerfrontendandfasterback,sothedesequencingcanbeavoided.Inthemeantime,themicrocomponentqueuecanbesupervisedbyadjustingtherotatespeedofthemotoranddesigningmicrocomponentoverlapinductiveswitchtoachievethedetectingofthequeue,keepthequeueorderedandcredibility.IVConclusionIthasbeenprovedthatthedesignofthissystemwasreasonableaftermachining,installationanddebugging.Italsohashighadaptability,intelligentize,automatization,universalityetc,andthesoftwarewasdesignedmodularly,whichcanberealizedmultistationtestandcontrolplatebysoftupgradedtoconstitutenetworktestandcontrolsystem,Theupgradespaceofthesystemwaswide.References1YonghuaWang,ModenelectricaltechnologyofPLCPUAApressJun.2004.2SimaticS7200systemenchiridionStep.200YNYNNYYNSysteminitializationI2.01CallautoresetStartmotor1TransducerI8hassignalQ4loseelectricity,popmicrocomponentI1.71NOverlapalarmStopmotor1Inquiresortnumber,startmotor2circumgyrateθiSorttransduceriSorterroralarm。Motor1stopMotor2reverseθi,reset.stopEND

注意事项

本文(外文翻译—基于PLC的感应电动机监控系统设计与实现 英文版.doc)为本站会员(淘宝运营)主动上传,人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知人人文库网([email protected]),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5