MOOG伺服阀说明书1.pdf

《MOOG伺服阀说明书1.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、ServovalveswithintegratedElectronicsD791andD792SeriesD791andD792SeriesThreestageservovalvesTheflowcontrolservovalvesD791offeredwithpilotvalvesofD761PrincipleofoperationThissignalthenisdemodulatedandD792SeriesarethrottlevalvesorD765Series,optionalstanda

2、rdAnelectricalcommandsignal(setandfedbacktothecontrolfor3-wayandpreferably4-wayresponseorhighresponseversionspoint,inputsignal)isappliedtoamplifierwhereitiscomparedapplications.Thesethreestageareavailable.SeriesD791cande-theintegratedcontrolamplifierwi

3、ththecommandsignal.Theservovalveshavebeenespeciallyliverratedflowupto250l/min,whichdrivesacurrentthroughcontrolamplifierdrivesthepilotdevelopedforsuchdemandingSeriesD792isavailablewithratedthepilotvalvecoils.Thepilotvalvevalveuntiltheerrorbetweenapplic

4、ationswherehighflowratesflowupto1000l/min.producesdifferentialpressureincommandsignalandfeedbackandatthesametimeextremeThesevalvesaresuitableforpres-itscontrolports.Thispressuresignaliszero.Thus,thepositionofdynamicperformancerequire-sureorforcecontrol

5、,positionanddifferenceresultsinapilotflowthemainspoolisproportionaltomentsmustbemet.Thedesignofvelocitycontrolsystemswithhighwhichcausesmainspooldis-theelectricalcommandsignal.thesevalvesisbasedonthewelldynamicresponserequirements.placement.knownD079Se

6、ries.Theinte-ThepositiontransducerwhichisgratedelectronicshasbeenexcitedviaanoscillatormeasuresreplacedbyanewdesignapplyingthepositionofthemainspoolSMDtechnology.Thevalvesare(actualvalue,positionvoltage).OperationalfeaturesThevalvesD791andD792Seriesdes

7、cribedinthiscataloguehave
ElectricalpositionfeedbackwithpressureisolatedpositionsuccessfullypassedEMCteststransducer(LVDT),nowearrequiredbyECDirective.Please
IntegratedSMDelectronicswithfalsepolarityprotectiontakenoticeoftherespective
Optionalexternalp

8、ilotsupplyandreturnconnectionsviafifthreferencesintheelectronicsandsixthportinvalvebodysection.
Lowthresholdandhysteresis,excellentnullstability
PreadjustedatfactoryTheactualflowdependsontheIflargeflowrateswithhighvalveDpelectricalcomma