伺服閥檢測儀說明書樣本

APPLICATIONNOTESVALVECHECKERG040-123伺服閥檢測儀闡明書型號G040-123翻譯：許國超本文獻(xiàn)供參照6月CONTENTS目錄ChapterTitlePage扉頁1.Description3產(chǎn)品描述32.Specification7規(guī)格闡明3.QuickStart9快開4.Connectingtovalveandplant11閥設(shè)備連接5.Plantmodeoperation(inline)12工作模式操作（在線）6.Checkermodeoperation(standalone)15檢測模式操作（離線獨(dú)立）7.External24Vsupply17外部供電24V8.Valveperformancechecks18閥性能檢測9.Blockdiagram20流程圖DESCRIPTION產(chǎn)品描述1.1TheMoogG040-123ValveCheckerisaninstrumentcapableofcheckingtheflowcontrolfunctionofnearlythecompleterangeofMoogelectricalfeedback(efb)proportionalandservovalves.Mechanicalfeedback(mfb)andpressurecontrolvalvesarenotcateredforbytheG040-123.穆格G040-123型伺服閥監(jiān)測儀是一種能對穆格閥就近能對閥流量控制，比例閥和伺服閥電氣信號反饋檢測儀器。帶機(jī)械反饋壓力控制閥不能用G040-123型檢測儀。Thefeaturethatmakesitsoversatileisthewayitcantestavalvewhilethevalveisstillinstalledinitsnormaloperatingplant.Thisisdoneattwolevels,“inline”and“standalone”.這種儀器特點(diǎn)能對安裝在閥臺上正常工作閥門進(jìn)行多方面檢測和操作。這里有兩種測試方式：在線檢測和獨(dú)立檢測。1.1.1Plant(InLine)工廠工作（在線檢測）Asinfiga)theplantandvalveoperatenormally.Infigb)theValveCheckerisconnectedbetweentheplantelectronicsandthevalvesuchthatalltheplantelectronics’signals，toandfromthevalve，areconnectedasnormal.TheValveCheckermonitorstheplantelectronics’signalsandthesignalsbackfromthevalve，enablingacheckofthevalve’sperformance.圖a為電氣線路與控制閥普通連接方式；圖b為伺服閥檢測儀串聯(lián)在電氣線路和控制閥總電氣線路之間，保證閥輸出輸入線路在正常狀態(tài)。檢測儀器能檢測電氣信號和輸入給閥信號，來檢測閥性能。1.1.2Checker(StandAlone)檢測模式（獨(dú)立檢測）InthismodetheplantcommandisswitchedoutwhiletheValveCheckergeneratesthecommandtothevalveandmonitorsthesignalsbackfromit.Thevalveremainsinstalledintheplantbuttheplantcommandsignalsaredisconnected.CheckingwhilestillinstalledintheplantprovidestheaddedbenefitofcheckingthevalvebyobservingthereactionoftheplanttotheValveChecker’scommands.在這個(gè)模式下操作，工廠工作指令被斷開，檢測儀控制信號輸給閥，閥反饋信號在回到檢測儀。盡管檢測儀還串聯(lián)在電路中，但工作信號已經(jīng)被斷開。檢測同步，可以由檢測員給出指令來監(jiān)測被測閥動(dòng)態(tài)變化。1.2TheValveCheckerispoweredbytheplantelectronicswhichalsocontinuetosupplythevalveinbothplantandcheckermodesofoperation.Aswell，thereisa+24VDCpowerconnectoronthefrontpanelfor24VDCand±15VDCpoweredvalves，withoutconnectiontotheplantelectronics’power.1.2檢測儀供電源由原電路供應(yīng)，同步能繼續(xù)提供應(yīng)被檢測閥在“工作”和“檢測”模式操作提供電源。同樣這里24V直流電源可以提供閥電子元件所需24V直流電源或±15V直流電源。不必外接其他電器電源。1.3TwocablesconnecttheValveCheckertotheplantelectronicsandvalve.EachoftheValveCheckermodelsisdedicatedtoapowersupplyvoltageandconnectortype.Itisnecessarytoselectthemodeltypethathasthecorrectconnectorandsupplyvoltage.Thetablebelowshowsthemodelnumbersandtheirsupply/connectortypes.1.3連接在檢測儀兩條電氣線一條接供應(yīng)電線，另一條接被檢測閥上。無論檢測儀那個(gè)模式下都是這樣連接來提供電源電壓和連接方式（接頭普通類型同樣），對于必要要選取類型要糾正連接類型和提供電源電壓。下表提供是型號和電源電壓參數(shù)Modeldashnumbertable:零件模塊參數(shù)表Modeldash型號—connector接頭、插接件supply供應(yīng)1.4Therearesixfunctionalblocksonthefrontpanel.在面板上有六個(gè)功能模塊1.QCommand電流指令4.Control控制2.Spool滑閥5.Enable啟動(dòng)，容許3.Power電源6.ValveConnector閥連接接口1.4.1QCommand電流指令Thisblockisactiveonlywhencheckermodeisselected.TherotarypotadjuststheQcommandlevel.只有在選在“檢測模式”下這某些模塊才干投入使用，旋轉(zhuǎn)鈕是調(diào)節(jié)電流大小量。Thegreytestpointgivesa0to10Vsignalproportionaltotheactualvoltageorcurrentbeingdeliveredtothevalve.Therotaryselectorswitchselectsthesignaltypethatisconnectedtothevalve.這個(gè)灰色測電位點(diǎn)提供0V~10V成比例輸出真是電信號，信號積極傳遞給被檢測閥件，旋轉(zhuǎn)扶手開關(guān)選著輸給閥信號類型The+/-switchconnectsthevalveQcommandsignaltothenon-inverting(+vegivesPA)andinverting(+vegivesPB)inputs.這個(gè)“+/-”開關(guān)是連接閥Q指令開關(guān)，開關(guān)在“+”位置（閥給油PA）輸入，在“-”位置（閥給油PB）輸入。1.4.2Spool滑閥Thespoolpositionsignalfromthevalveisalwaysavailableatthegreenspooltestpointandpassedontotheplantelectronicsregardlessofthemodeofoperation.Thegreenspooltestpointgivesa0to10Vsignalproportionaltothespoolsignalfromthevalve.TheLEDdisplaytotheleftofthetestpointprovidesarudimentaryindicationofthesignal.ThecentrebluenullLEDwillbeilluminatedwhenthespoolsignalislessthan10.無論哪種控制模式下，從閥來閥芯位置信號總是在測試點(diǎn)上呈綠色，這些綠色測試點(diǎn)上電信號與提供0~10V電信號成正比例。LED批示燈顯示左邊測試點(diǎn)跡象,提供了一種初步信號，中心藍(lán)色LED零位批示燈在閥芯電信號不大于10%時(shí)才亮。AnunderstandingofthecheckerloadswitchisimportantforsuccessfuluseoftheChecker，whenthespoolsignalisacurrent(10mAor4-20mA).Whenthevalvehasacurrentoutputtheremustbeapaththroughwhichthecurrentcanflow，fortheCheckertobeabletomeasurethecurrent.Whentheplantlectronicsdonoprovidethisload，ortheCheckerisnotconnectedtotheplantelectronics，theCheckerloadswitchconnectsa100Ohmloadtoground(0V)onthespoolsignal，enablingacurrenttoflow.檢查員理解負(fù)荷開關(guān),并成功運(yùn)用檢查是很重要。當(dāng)滑閥信號電流（10mA或4-20mA）當(dāng)閥門具備一種輸出電流必要有能檢測測量當(dāng)前流通電流。當(dāng)電路不提供負(fù)荷，或者檢查沒有連接到電路電子原件，檢測員要把負(fù)荷開關(guān)連接到100歐姆負(fù)載到接地（0V）使電流信號流通，才干檢測。Notethatasixpositionrotaryswitchisusedtoselectthefivefeedbacksignals.Thefifthandsixthpositionsbothselect4-20mAsignal.注:6個(gè)位置旋轉(zhuǎn)開關(guān)是用來選取五個(gè)反饋信號.第五檔位和第六檔位4-20mA都選取位置信號。1.4.3Power電源1.4.3.124Vmodels24V模式The24VLEDilluminateswithbothplant24Vandtheexternal24Vsupply.Theexternal24VisconnectedviathelargeblackconnectorbelowtheLED.這里24VLED顯示燈電源有工廠工作24V電壓電源或者有外部24V電壓電源提供電源。外部電源連在24VLED顯示燈下面大黑色插孔上。ThecheckerLEDindicatestheinternal15Vsupplyishealthy.ThissupplyisusedtopoweronlytheValveCheckerinternalelectronics.Thevalveandinternal15Vregulatorsarealwayspoweredbytheexternal24V，regardlessofthepresenceofplant24V.Whenthereisnoexternalsupplytheplant24Vpowersthevalveandinternalregulators.檢測員LED批示燈正常工作是由15V內(nèi)部電壓提供，這個(gè)電壓僅用于提供檢測儀內(nèi)部電子元件使用。不論有24V工廠工作電源，或沒有外部電源提供24V工廠電源提供應(yīng)閥和調(diào)節(jié)器，15V電壓和閥工作24V電壓都是由外部24V電源提供。1.4.3.215Vmodels15V模式The24VLEDilluminateswhentheexternal24Vsupplyisconnected.Theplant±15VLED’silluminatewhentheplant15Vsupplyispresent.ThecheckerLEDindicatestheinternal15Vsupplyishealthy.Whenthecheckerispoweredfromtheplant15Vthevalveispoweredfromthatsupplyaswell.24VLED批示燈亮是表達(dá)與外部24V電壓電源連接通。當(dāng)工廠現(xiàn)場提供15V電壓電源時(shí)±15VLED批示燈會(huì)亮。檢測儀顯示內(nèi)部電壓15V供應(yīng)正常，如果檢測閥工作電壓是15V，那么這也能正常提供閥檢測使用。Whenexternal24Vispresent，thecheckerinternalregulatorsarepoweredfromthatsupply，regardlessofthepresenceoftheplantsupplyandthevalveinturnispoweredformtheinternalregulators.當(dāng)外部提供24V電壓，檢測器內(nèi)部調(diào)節(jié)穩(wěn)壓來自這個(gè)電源，不論工廠提供閥工作電壓都要通過檢測儀內(nèi)部解決器后供應(yīng)閥。1.4.4Control控制Thisswitchselectsthetwooperatingmodes:旋轉(zhuǎn)開關(guān)可以選取兩個(gè)操作模式：-InCheckermodevalveQcommandsandvalveenablearegeneratedbytheChecker，withthevalvegeneratedsignalsofspoolposition，enableOKandvalveOK，availabletobemonitoredontheValveCheckertestpointsandpassedbacktotheplantelectronics.在檢測模式下，檢測員可以操作Q指令和使被檢測閥動(dòng)作，產(chǎn)生作用閥電信號和閥芯位置檢測信號，來判斷使用和閥狀態(tài)正常。檢測員可以在監(jiān)測檢測點(diǎn)上記錄下輸入輸出電信號信息。-InPlantmodevalveQcommandsandvalveenablearegeneratedbytheplantelectronics，withthevalvegeneratedsignalsmonitoredinthesamewayasincheckermode.在工廠工作模式下，閥門Q指令和閥門產(chǎn)生電信號通過工廠電氣設(shè)備，閥檢測信號產(chǎn)生方式和“檢測模式”產(chǎn)生是同樣。Notethatathreepositionrotaryswitchisusedtoselectbetweencheckerandplantmodes.Thefirstandsecondpositionsbothselectplantmode.注:三個(gè)位置旋轉(zhuǎn)開關(guān)是用來選取檢查者,之間工廠模式。第一和第二位置都選廠模式。1.4.5Enable啟動(dòng)TheenableLEDilluminateswhentheenablesignaltothevalveispositive.Theenablesignaltothevalvecomesfromtheplantelectronicswhenplantmodeisselected.Whencheckermodeisselecteditcomesfromtheenableonswitch.However，theenabletothevalvecanbeturnedoffbyselectingmasteroffwheneitherplantorcheckermodeisselected.當(dāng)閥門啟動(dòng)信號呈陽性，啟動(dòng)批示燈亮起。當(dāng)選取工廠工作模式，閥工作勉勵(lì)電信號來源工廠工作電源提供。當(dāng)打啟動(dòng)動(dòng)開關(guān)，“檢測模式”激活啟用，但是，當(dāng)選取“工廠工作模式”或“檢測模式”時(shí)，這個(gè)閥開關(guān)可以關(guān)掉選取模式。Aswellasenablingthevalve，theenablesignalalsoenablestheValveCheckeroutputsignalsderivedfromeitherthecheckeritself，ortheplantelectronics.通過閥門檢測員輸出控制信號，來檢測閥門，閥門信號和檢測儀自身工廠工作電子元件電源。Thisprovidesasafetyfeaturethatquicklyremovesallsignalsintheeventofdamagingordangerousprocessmovements.Simplyselectingmasteroffturnsoffallsignallinestothevalve.這個(gè)提供一種安全檢測辦法，迅速檢測和清除關(guān)閉所有有關(guān)信號事故、危險(xiǎn)動(dòng)作進(jìn)程。只需簡樸關(guān)掉控制信號就可以切斷所有信號線。TheenableOKLEDilluminateswhentheenableOKsignalformthevalveispositive.當(dāng)來自閥勉勵(lì)正常時(shí)，LED照明啟用（亮）。1.4.6ValveConnector閥插孔連接Allthetestpointsinthissectionarewireddirectlytothevalveconnector.Thisenablestheactualvoltageonthevalve’sinputpinstobemeasured，regardlessofthemodeselected.Aknowledgeofthevalveinputimpedanceissometimesnecessarytogainbenefitfromthismeasurement.在這某些里所有測試點(diǎn)都與閥門直接連接，這個(gè)檢測儀輸入插腳是來測量閥實(shí)際電壓，無論選取什么控制模式，對于閥輸入阻抗有較好理解也要來源這種測量。ThissectionalsocontainsthevalveOKLED.ThevalveOKsignalisanoutputfromthevalve.這某些面板同樣包括檢測閥正常信號燈“OKLED”，檢測儀顯示正常信號也來源閥輸出。2.SPECIFICATION規(guī)格闡明QCommandOutputsQ指令輸出10V，10mA,4-20mAQCommandTestPointQ指令測試點(diǎn)0to10VQCommandQ指令Outputswing輸出范疇10V，20mASpoolInputs線圈可調(diào)范疇2.5to13.5V，10Vferential,10Vsingleended，10mA，4-20mA.SpoolFeedbackTestPoint管測試點(diǎn)反饋0to10VTestpointsize測試點(diǎn)尺寸2.0mmdiameterSupply電源15VDC9to18V，65mAat15V，excludingvalve24VDC18to36V，90mAat24V，excludingvalveWeight重量1.2kg.includescablesDimensions尺寸205x138x70highCableLength電線長3.0MEnable，EnableOK&ValveOKonat8.5V.Thresholdsoffat6.5V.EMC電磁濾波EN50081-1EN50082-2Protectiveearth接地保護(hù)EN60204-1equal-potential3.QUICKSTART迅速啟動(dòng)3.1SelecttheValveTestermodelnumber選取閥檢測器型號3.2SelectOperationMode選取操作模式Selectplantmodeforinlinetestingorcheckermodeforstandalonetesting.在工廠模式選取可在線測試或檢測模式可以離線單獨(dú)進(jìn)行測試3.3ExternalSupply外部供應(yīng)Ifusingcheckermodeanexternal24Vpowersupplyisneeded.Supplyrequirementsare:-如果使用檢測模式需要外部24V電壓供應(yīng)，供應(yīng)調(diào)節(jié)量為：-2.1mmdiameterconnector：24Voutsidecontact，0Vinsidecontact.直徑2.1mm接線頭：24V外連接線，0V內(nèi)部連接線。-18Vto36Vrange.18V~36V范疇-90mAat24Vtopowerthevalvecheckerwithnoload.90mA在24V電源電壓檢測儀在無負(fù)載范疇。3.4ConnectCables電線連接Firstselectmasteroffontheenableswitch.Turnhydraulicpressureandplantelectronicsoffbeforedisconnectingandreconnectingthevalve.操作員在使用啟動(dòng)開關(guān)，把液壓油路和工廠工作電源關(guān)閉CAUTIONBesurethatthepowerdownandpowerupsequenceisorderlysonodamagecanbedonetotheprocess.警告：必要保證對的得電和失電順序，才不會(huì)在檢測中導(dǎo)致?lián)p壞設(shè)備。3.5SelectSignalTypes信號類型選取SelecttheQcommand，ifusingincheckermode，andspoolsignalswitchestomatchthevalvesignaltypes.選取使用Q命令模式，如果使用在檢測模式下，線圈信號要切換到與閥匹配閥類型。3.6RunTest運(yùn)營測試Turnontheenableswitch.ThevalvewillnowoperateandcorrectoperationcanbeverifiedbymeasuringtheQcommandandcomparingittothespoolsignal.對的打啟動(dòng)動(dòng)開關(guān)，這個(gè)檢測儀立即運(yùn)營和對的動(dòng)作，通過Q命令和閥芯信號對比來判斷閥動(dòng)作正常。3.6.1Plant(inline)工廠工作（在線）MeasureQ+andQ–testpointsintheValveconnectorsectionandcomparethissignaltothegreentestpointinthespoolsection.測量Q+和Q–測試點(diǎn)在測試儀面板和比較反饋信號在閥信號來源閥芯線圈綠色測試點(diǎn)。3.6.2Checker(StandAlone)檢測模式（獨(dú)立檢測）MeasurethegreytestpointintheQcommandsectionandcomparethissignaltothegreentestpointinthespoolsection.灰色測試點(diǎn)測量中,比較指揮Q信號綠色測試點(diǎn)在芯區(qū)。3.7Valvewon’trespond?閥沒有響應(yīng)？CheckinValveconnectorsection檢查閥線路連接。-CorrectQ+andQ-signal.對的接入Q+和Q-信號-Correctpowersupply.對的電源電壓，-Correctenablesignal，ifthevalvehasanenable.如果閥沒有使能就檢查使能信號。Checkinspoolsection.檢查閥芯線圈面板-IfspoolsignalisamAsignalturnoncheckerloadinspoolsectiontoensureapathforthemAcurrent.如果閥芯信號是一種毫安電流信號打開檢查負(fù)荷，要保證閥芯也為電流。Correctspoolsignalselected.選取對的閥芯信號Checkinthepowersection.檢測電源某些CheckerLEDisilluminated.檢測LED亮起Checkinenablesection.檢測使能某些EnableLEDisilluminated.檢測LED亮起CheckinQcommandsection.檢查Q命令某些-Correctcommandsignalselected.選取對的指令信號-Tryreversingthepolarityofthe+/-switch.嘗試扭轉(zhuǎn)極性+/-開關(guān)。4.CONNECTINGTOVALVEANDPLANTELECTRONICS連接到閥和工廠電子設(shè)備4.1Disabletheprocessthatthevalveiscontrollingbyturningoffelectricalpowerandhydraulicpressure.4.1關(guān)閉閥門過程控制,關(guān)掉電源和液壓。CAUTION：Besurethatthepowerdownsequenceisorderlysonodamagecanbedonetotheprocess.警告：必要保證對的得電和失電順序，才不會(huì)在檢測中導(dǎo)致?lián)p壞設(shè)備4.2RemovetheplantelectroniccablefromthevalveandmateitwiththeValveCheckerplantcable.4.2拆卸裝置從閥門及電子電纜和閥門。交配檢查植物電纜。4.3MatetheValveCheckervalvecablewiththevalve.閥與檢測儀電纜連接匹配。4.4Selectmasteroffontheenableswitch.選取“masteroff”在使能開關(guān)上Restorepowerandhydraulicpressure.恢復(fù)供電和液壓壓力CAUTION：Besurethatthepowerupsequenceisorderlysonodamagecanbedonetotheprocess.注意：要保證啟動(dòng)順序?qū)Φ挠行?，不至于?dǎo)致使用過程中浮現(xiàn)損壞。4.5VerifythatthecheckerpowerLEDisilluminated.4.5確認(rèn)檢側(cè)儀功率LED照明4.6Selecteitherplant(inline)modeorchecker(standalone)modeonthecontrolselectorswitch.4.6、選取模式控制開關(guān)在工廠模式（在線模式）或者檢測模式（獨(dú)立模式）Seechapterfiveforinstructionsonplantmodeoperationandchaptersixforinstructionsoncheckermodeoperation.見第五章批示工廠模式運(yùn)營,第六章批示檢測模式運(yùn)營CAUTION：DonotspilloilontheValveChecker.Oilcanenterthehousinganddamagetheinternalelectroniccircuit.DonotsubjecttheValveCheckertosevereshockorvibration.Damagetotheinternalelectroniccircuitmayresult.警告:不要溢油閥門上檢查。油可以進(jìn)入儀器內(nèi)部和導(dǎo)致內(nèi)部電子電路損壞。不要在受到嚴(yán)重沖擊或振動(dòng)閥門上檢測。也許會(huì)浮現(xiàn)損壞內(nèi)部電子電路成果。5.PLANTMODEOPERATION工廠模式運(yùn)營5.1Connection連接HavingsuccessfullyconnectedtheValveCheckerasperchapterthree，selectplantmodeonthecontrolselectorswitch.按第三章對的連接閥與檢測儀之間線路,選取工廠模式控制開關(guān)。CAUTION：Ensuretheenableswitchisinthemasteroffpositionandleaveitinthispositionuntilallswitchselectionsaremadeandthetestisreadytoproceed.警告:保證使能開關(guān)在關(guān)閉位置，當(dāng)所有開關(guān)和選取在檢測準(zhǔn)備狀態(tài)，才干使使能開關(guān)離開關(guān)閉位置。5.2PlantMode工廠模式InplantmodetheQcommandsectionisinoperative.TheQandenablecommandscomefromtheplantelectronics.在工廠模式下Ｑ指令模塊失效，這里Ｑ指令來源工廠電子元件信號。5.3Spool滑閥芯Inthespoolsectionselecttheappropriatespoolsignal.Whenselectingeither10mAor4-20mA，checkiftheplantelectronicsprovidesaloadthatenablesacurrentsignaltoflow.Ifthereisnoreturnsignalpathtoground(0V)turnonthecheckerloadswitch.在滑芯模塊，選取適當(dāng)閥芯信號范疇，當(dāng)選取在10mA或4-20mA條件，檢測儀或工廠電子元件提供一種負(fù)載使電流信號流動(dòng)。如果沒有回來信號通路,地面(為0V)打開檢測儀負(fù)荷開關(guān)。5.4Enable使能Beginthetestbyturningontheenableswitchtoenablethevalve.TheenableLEDshouldilluminateconfirmingthatthevalveandValveCheckerareenabled.Theenablesignalisalsousedinthevalvecheckertoenableittooperate.Onvalvesthatdonothavean“enablesignalinput”theValveCheckergeneratesaninternalenablesignal.開始測試時(shí)，把使能開關(guān)打開，使閥啟動(dòng)，這個(gè)使能LED燈亮，檢測者確認(rèn)閥門檢測啟用，使能信號作用在檢測儀使其可以操作，在檢測閥門上,沒有一種“使能信號輸入，檢測儀上使能信號有顯示。5.5ValveOKandEnableOK閥“ＯＫ”和使能“ＯＫ”EnableOKindicatesavalidenablesignalhasbeenreceivedbythevalve.ValveOKindicatesthatthevalveclosedloopisoperatingwithinacertainerrorband.使能顯示正常信號預(yù)示發(fā)售均有效信號，檢測儀可以顯示發(fā)在閉環(huán)控制內(nèi)誤差范疇。Beawarethatnotallvalveshavetheseoutputsignals.IftheValveCheckerbeinguseddoesnothavethetwoOKtestpointsthesignalsarenotwiredtotheValveCheckerandthetwoOKLED’swillnotilluminate.值得注意是,并不是所有閥門均有這些輸出信號。如果閥門檢測儀沒有使用兩個(gè)好測試點(diǎn)信號是不能勉勵(lì)檢測儀工作與兩個(gè)OKLED不會(huì)亮起。5.6SpoolSignals閥芯信號Measuretheactualspoolsignalonthegreentestpoint.Thevoltageonthistestpointisstandardisedto0to10V，regardlessoftheactualsignaltype.衡量綠色測試點(diǎn)實(shí)際閥芯信號。不論實(shí)際信號類型，在這電壓測試點(diǎn)原則電壓都是0~10V。5.7ValveConnectorTestPoints閥門連接測試點(diǎn)Theplantelectronics’command，directlyonthevalveinputpins，canbemeasuredonthegreyvalveconnectorsectiontestpoints.AknowledgeofthevalveinputimpedanceisrequiredtocalculatethecurrentlevelwhenthecommandisamAsignal.這個(gè)工廠電子設(shè)備命令，直接與閥輸入插腳連接，在閥門灰色連接部位測試點(diǎn)檢測。檢測時(shí)閥門所需輸入阻抗當(dāng)前級別，命令檔在毫安信號檔次。Example例子AD66Xvalvewitha10mAQcommand，aninputimpedanceof400OhmandtheQ-pingroundedwillgiveaQ+voltageof4V.However，ifyoumeasureapproximately+13Vitislikelythereisnocurrentflowing.Ifyoumeasureapproximately0Vitislikelythecommandfromtheplantisnotconnected.ThesetestpointsareusefulifatestshowsafaultandyouwanttobesurethatitisthevalveandnottheValveCheckercausingit.一種電流Q命令在10mA、型號D66X液壓閥，一種輸入阻抗400歐姆和這個(gè)Ｑ-插孔連接一種Ｑ＋4V電壓。但是，如果測量是一種約+13V左右電壓，它也許沒有電流通過；如果你測量是一種約0V左右電壓，它也許與工廠提供信號命令沒關(guān)于系，這些測試點(diǎn)是有用，如果有一種測試顯示出故障，你要依托這些點(diǎn)來斷定是被測閥門而不是檢測儀有問題。Q+andQ-valvepinnumbers:Q+和Q-閥門插腳碼5.8LEDDisplayLED顯示屏TheLEDdisplayinthespoolsectionshowstheamplitudeofthesignalselectedbythespoolsignalrotaryswitch.Thisdisplayprovidesarudimentarycheckofthespoolsignal.ThecentrebluenullLEDisilluminatedwhenthespoolpositioniswithin10ofnull.通過閥芯信號旋轉(zhuǎn)開關(guān)。在閥芯位置模塊LED顯示燈是來顯示閥芯振幅信號，這個(gè)顯示是一種初步檢測閥芯信號，當(dāng)閥芯位置局限性10時(shí)，這個(gè)中間藍(lán)色LED亮起。6.CHECKERMODEOPERATION檢查模式操作+24Vmodel(seePg12for15Vmodelillustration)+24V模式（見第１２頁15V模式插圖）6.1CheckerMode檢查模式HavingsuccessfullyconnectedtheValveCheckerasperchapterthree，selectcheckermodeonthecontrolselectorswitch.按第三章對的連接閥與檢測儀之間線路,選取工廠模式控制開關(guān)。CAUTION：Ensuretheenableswitchisinthemasteroffpositionandleaveitinthispositionuntilallswitchselectionsaremadeandthetestisreadytoproceed.警告:保證使能開關(guān)在關(guān)閉位置，當(dāng)所有開關(guān)和選取在檢測準(zhǔn)備狀態(tài)，才干使使能開關(guān)離開關(guān)閉位置。6.2Qcommandpot，initialsettingandpolarityＱ指令旋鈕初步設(shè)定和極性SettheQcommandpottoitscentrezeropositionandselectthesignaltypeappropriatetothevalvebeingtested.Setthe±polarityswitchasrequired.Ifyouareuncertainofthepolarity，itisrecommendedtouse+asastartingpointandcheckthedirectionofactuatortravelintheprocessplant，whentestingbegins.當(dāng)開始測試時(shí)，設(shè)定Ｑ命令旋鈕調(diào)至零位，選取與閥門相匹配類型；按需要設(shè)定±極性開關(guān)。如果你不擬定極性，建議使用+作為開始點(diǎn)方向和檢查執(zhí)行過程中設(shè)備勉勵(lì)源。6.3Spool閥芯Inthespoolsectionselecttheappropriatespoolsignal.Ifselectingeither10mAor4-20mAcheckiftheplantelectronicsprovidesaloadthatenablesthecurrentsignaltoflow.Ifthereisnoload，turnonthecheckerloadswitch.在閥芯模塊面板選取適當(dāng)閥芯信號。如果在10mA或4-20mA檔檢測時(shí)，檢測儀需要提供一種負(fù)載使電子元件有電流信號通過，如果沒有負(fù)載，打開檢測儀負(fù)載開關(guān)。6.4Enable使能Beginthetestbyturningontheenableswitchtoenablethevalve.TheenableLEDshouldilluminateconfirmingthatthevalveisenabled.Theenablesignalisalsousedinthevalvecheckertoenableittooperate.Onvalvesthatdonothavean“enablesignalinput”，theValveCheckergeneratesaninternalenablesignal.使能開關(guān)打開，使閥有使能才開始測試。閥得到使能，LED使能燈亮起確認(rèn)閥得到使能。這個(gè)使能激活信號也用于閥門檢測，使它可以操作。在閥沒有一種“使能信號輸入”，這個(gè)檢測儀內(nèi)不可以產(chǎn)生一種檢查信號。6.5QCommandQ命令A(yù)djusttheQcommandpot.Measurethecommandvalue，standardisedto0to±10Vonthegreytestpoint.Comparethisvaluetotheactualvalvespooloutputonthegreentestpoint.Forcorrectfunctiontheyshouldbethesame;withinaccuracylimits.調(diào)節(jié)Q指令旋鈕，測量控制命令傳給閥，使0至±10伏特灰色測試點(diǎn)量度統(tǒng)一。這些值與閥芯實(shí)際位置綠色測試點(diǎn)產(chǎn)生值進(jìn)行對比，為了正常運(yùn)營應(yīng)當(dāng)在精度規(guī)定范疇內(nèi)，使兩者保持相似。6.6CheckerAccuracyLimits檢查精度范疇TheaccuracylimitoftheValveCheckeris±0.2Vforallsignals.Thismeansthatifyoureadacommandof5.6Vthefeedbacksignalcouldbebetween5.4and5.8Vandthevalvewillbefunctioningcorrectly.Seepg.10foratableofQ+andQ-valvepinnumbers.檢測儀精度限制為±0.2V測試儀信號，這句話意思是：如果你讀反饋信號為5.6V，這個(gè)信號也許在5.4V和5.8V之間，這個(gè)與閥門運(yùn)營是正常參閱第10頁Q+和Q-閥門插腳碼表格。6.7ValveConnectortestpoints閥門連接測試點(diǎn)Thevalveconnectorsectiontestpointsenableameasurementdirectlyonthevalveinputpins.ThisisusefulifatestshowsafaultandyouwanttobesureitisthevalveandnottheValveCheckercausingit.AknowledgeoftheinputimpedanceofthevalveisnecessarytocalculatethecurrentlevelwhenthecommandisamAsignal.檢測儀連接某些測試點(diǎn)能直接測量閥輸入插孔上，如果測試顯示一種故障，你要確認(rèn)是閥門問題而不是檢測儀故障。，由于閥門內(nèi)部電阻是必要要計(jì)算選取級別，因此命令才考慮是毫安信號6.8LEDDisplayLED顯示屏TheLEDdisplayshowstheamplitudeofthespoolsignal.Thisdisplayprovidesarudimentarycheckofthesignal.ThecentrebluenullLEDisilluminatedwhenthespoolpositioniswithin±10%ofnull.LED顯示屏顯示閥芯振幅信號。這顯示了一種初步檢查信號。,當(dāng)閥芯位置是零至±10%（局限性10%）心是藍(lán)色LED亮起。7.EXTERNAL24VSUPPLY外部24V供應(yīng)7.1TheValveCheckercanbepoweredfromtheplantelectronicsviatheplantconnectororfromthefrontpanel24Vconnector.Whentheexternal24Vissuppliedtothisfrontpanelconnectorthreethingshappen:7.1閥門檢測儀電源可以從工廠電子設(shè)備連接或在前面24V面板連接。當(dāng)用外部24V電源提供電源提供應(yīng)當(dāng)前面板三個(gè)去處使用：-TheValveCheckerinternalpowerisderivedfromthissupply.-The24Vsupplytovalvespoweredby24Vcomesfromthissupply.-The±15Vsupplytovalvespoweredby±15VcomesfromtheValveCheckerinternalregulators，whichinturnarepoweredbytheexternal24V.-檢測儀內(nèi)部電源功率也來源這個(gè)電源供應(yīng)-這個(gè)24V電源提供應(yīng)被檢測閥使用24V電壓-閥使用±15V電源電壓來自檢測儀內(nèi)部調(diào)節(jié)，使用電壓是依此來源著外部電壓24V提供。7.2Supplyrequirementsare:-2.1mmdiameterconnector：24Voutsidecontact，0Vinsidecontact.-18Vto36Vinputrange.-90mAat24VtopowertheValveCheckerwithnovalveload.7.2供應(yīng)規(guī)定是:-2.1mm直徑接頭:24V外部接觸，0V內(nèi)部接觸。-18至36V輸入電壓范疇。-測儀在沒有外部閥負(fù)載時(shí)，電源為24V電壓，90mA電流。7.3Typical24Vmaximumsupplyrequirementsforsome24Vpoweredvalvesare:-D633–1.2A-D634–2.2A-D66X–300mA7.3典型24V最大供應(yīng)相應(yīng)某些24V電動(dòng)閥。-D633–1.2A-D634–2.2A-D66X–300mA7.4Typical24Vmaximumsupplyrequirementsforsome±15Vpoweredvalvesare:-D66X–400mA(300mA@±15V)7.4、典型24V最大供應(yīng)規(guī)定某些±15伏特電動(dòng)閥：-D66X–400mA(300mA@±15V)CAUTION：Whentheexternal24Vsupplyisconnected，theplantsupplyisalwaysautomaticallydisconnectedandthevalveisthenpowered，directlyorindirectly，fromtheexternal24Vsupply.Itisthereforeessentialthattheexternalsupplyyouconnecthasadequatecurrentcapacitytopowerthevalveyouarechecking.注意：當(dāng)與外部24V電源供應(yīng)連接，工廠提供電源與閥門自動(dòng)斷開，閥門動(dòng)力直接或間接從外部24V電源供應(yīng)。因而連接外部電源必要能提供足夠電量，提供檢測者來檢測。8.VALVEPERFORMANCECHECKS閥門性能檢測TheCheckercanbeusedtotestnull，threshold，stepresponseandhysteresis.Becausethresholdandhysteresisonelectricalfeedback(efb)valvesareverylow，itcanbedifficulttogetanaccuratefigureifthevalveisoperatingwithinspecification.Testingthresholdandhysteresisisonlyofvalueifthevalveiswelloutofspecification；andthenonlytoconfirmincorrectoperation，ratherthanaccuratelyquantifyingit.檢測儀可以用來檢測零位、閾值階躍響應(yīng)和滯后性，由于閾值和滯后性,在滯環(huán)電反饋（ebf）閥門中非常低，雖然檢測儀闡明規(guī)定內(nèi)操作也很難測得很精確數(shù)值。檢測閾值和滯后僅僅是一種超過規(guī)定范疇數(shù)值，但是這個(gè)規(guī)定范疇只是來擬定操作不對的性，這是個(gè)精準(zhǔn)地量化操作過程。8.1Null零位TheSpoolnullpositionofaflowcontrol(Q)valveisgenerallythepointatwhichthereisnoflowfromeitherport.Thisisthecasewithaxiscutspools.However，valvescanhaveoverlapped，under-lappedandcombinationsofthethreetypesthatcanmakecheckingnullalittletricky.普通流量控制閥閥芯零位這個(gè)點(diǎn)上，閥內(nèi)沒有液體通過，閥塊閥內(nèi)狀況就是這樣。然而閥門有正開口、負(fù)開口和零開口三種類型構(gòu)成，少流量零位可以檢測到零位。Anaccurateunderstandingofthespecifiednullcharacteristicofavalveisessentialbeforeanysensecanbemadeofnullmeasurementresults.對的把握零位特點(diǎn)，對于一種閥門至至關(guān)重要意義，可以由可以檢測出成果不擬定詳細(xì)數(shù)量值。8.1.1Tocheckthenullofanaxiscut，orquasiaxiscutspool(3%overlap)，settheQCommandsotheactuatorcontrolledbythevalveisstationary.Measurethecommand.Thismeasurementisthenulloffset，ornullerror，ofthevalve.Itwillbedifficulttogettheactuatortostopforbothtypesofaxiscutspool.Aslightcreeponewayoranotherisacceptable.8.1.1檢查閥芯零位位置或者閥口重疊量（3%以內(nèi)），通過Q命令來控制控制閥力矩馬達(dá)是一定，測量這個(gè)命令，這個(gè)測量能抵消閥門零位或零位誤差，它很難把驅(qū)動(dòng)器停下來，停在兩種空口類型之一，但是在微量變化，形成閥口位置是可以容許。8.1.2Checkingthenullonanoverlappedvaleisalittlemoredifficult.FindaQCommandthatholdstheactuatorstationary，ornearstationary.Asmallamountofactuatorcreepisnormal.IncreasetheQCommanduntiladefiniteactuatorvelocityisobserved.Recordthisvalue.8.1.2檢測零位時(shí)重疊量是有一點(diǎn)困難，可以提供一種Q命令，使驅(qū)動(dòng)器保持靜止或者動(dòng)態(tài)下靜止不動(dòng)，一種微量驅(qū)動(dòng)器動(dòng)是容許；增長一種明確Q命令直到驅(qū)動(dòng)器有運(yùn)動(dòng)速度為止，記錄下此時(shí)數(shù)值。DecreasetheQCommanduntilanequalreverseactuatorvelocityisobserved.Recordthisvalue.Thetworeadingsshouldbeequalinmagnitudebutoppositeinsign.Thedifferenceinthemagnitudeofthetworeadingsisthenulloffset.減少Q(mào)命令輸入直到驅(qū)動(dòng)器有相等反向速度，并記錄下此時(shí)數(shù)值，這個(gè)兩個(gè)數(shù)值讀數(shù)應(yīng)當(dāng)大小相等，方向相反。若這兩個(gè)數(shù)值大小不同闡明浮現(xiàn)