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1、外文原文SteppingmotorapplicationandcontrolSteppingmotorisanelectricalpulsewillbeconvertedintoangulardisplacementoftheimplementingagencies.Putitinsimplelanguage-speaking:Whenthestepperdrivepulsesignaltoareceiver,itdrivessteppermotorrotationdirectionbysettingafixedpointofview(andthest
2、epangel).Youcancontrolthenumberofpulsestocontroltheamountofangulardisplacement,soastoachievethepurposeofaccuratepositioning;Atthesametime,youcanbycontrollingthepulsefrequencytocontrolthemotorrotationspeedandacceleration,soastoachievethepurposeofspeed.Steppingmotordirectlyfromthe
3、AC-DCpowersupply,andmustusespecialequipment-steppermotordrive.Steppingmotordrivesystemperformance,inadditiontotheirownperformancewiththemotorontheoutside.butalsotoalargeextentdependonthedriveisgoodorbad.Atypicalsteppermotordrivesystemisoperatedbythesteppermotorcontroller,stepper
4、motordrivesandsteppermotorbodyiscomposedoftherrparts.Steppingmotorcontrollerstepperpulseanddirectionsignal,eachmadeofapulse,steppermotor-drivensteppermotordrivesarotorrotatingstepangle,thatis,step-by=stepfurther.Highorlowspeedsteppermotor,orspeed,ordeceleration,startorstoppulses
5、areentirelydependentonwhetherthelevelorfrequency.Decidethedirectionofthesignalcontrollersteppermotorclockwiseorcounterclockwiserotation.Typically,thesteppermotordrivecircuitfromthelogiccontrol,powerdrivercircuit,protectioncircuitandpowercomponents.Steppingmotordrivecontroller,on
6、cereceivedfromthedirectionofthesignalandsteppulse,thecontrolcircuitonapre-determinedwayoftheelectricalpower-phasesteppermotordrivecontroller,oncereceivedfromthedirectionofthesignalandsteppulse,thecontrolcircuitonapre-determinedwayoftheelectricalpower=phasesteppermotorexcitationw
7、indingsoftheconductionorcut-offsignal.Controlcircuitoutputsignalpoweramplifier,whichissteppermotordrivenpowerdrivepart.Powersteppermotordrivecircuittocontroltheinputcurrentwindingtoformaspaceforrotatingmagneticfiledexcitation,therotor-drivenmovement.Protectioncircuitintheeventof
8、shortcircuit,overload,overheating,suchasfailure
