MVME2604-1161A工控模塊
fft.PeakTorque=系統(tǒng)慣性?rpmx加速時(shí)間+T其中:峰值扭矩=加速加載所需的總電機(jī)扭矩。系統(tǒng)慣性=包括電機(jī)在內(nèi)的總系統(tǒng)扭矩。時(shí)間=加速時(shí)間(秒)。?rpm=加速時(shí)間內(nèi)電機(jī)速度的變化。ProductDataABAC伺服電機(jī)系統(tǒng)慣性軸b.-in.-sPeakTorque=系統(tǒng)慣性軸?rpm.x加速時(shí)間+Tl其中:峰值扭矩=加速負(fù)載所需的總電機(jī)扭矩in.-in.SystemInertia=總系統(tǒng)扭矩in.-in-slistedasJtjmonformulasheetsTime=加速時(shí)間(單位:秒)Tl=負(fù)載扭矩(單位:英寸)。?rpm=加速時(shí)間內(nèi)電機(jī)速度的變化。如果電機(jī)加速/減速的總時(shí)間+達(dá)到總循環(huán)時(shí)間的百分比+t+t+t,則使用所示的公式確定電機(jī)節(jié)能率或轉(zhuǎn)矩。DutyCycle Profile Decelevate Pd Accelerate Tpa RepeatMoveCycle RPM StadiSpeedTss RestTrTotalCycle Timetttt其中:Trms電機(jī)RM或整個(gè)工作周期內(nèi)的平均扭矩。以磅-英寸或磅-英尺表示。必須在公式中使用相同的單位。Tpa電機(jī)峰值或峰值加速至最大速度。以磅/英寸或磅/英尺表示。相同的單位必須在公式內(nèi)使用以磅-英寸或磅-英尺表示。當(dāng)電機(jī)轉(zhuǎn)速通常為Tss.t、t、t時(shí),必須通過公式使用相同的單位,t每部分工作周期的時(shí)間(以秒為單位)。Tpaxt+Tssxt+Tpdxt+Trxtt+t+t t+t rms=。選擇伺服電機(jī):選擇一個(gè)具有最大速度能力的電機(jī),以達(dá)到計(jì)算步驟中的峰值。b選擇具有連續(xù)輸出或輸出能力的選擇器,等于或大于步驟中確定的值,以較大者為準(zhǔn)。c選擇能夠提供步驟中確定的峰值扭矩的電機(jī),直到步驟中確定最大轉(zhuǎn)速。產(chǎn)品數(shù)據(jù)ABAC伺服電機(jī)伺服電機(jī)驅(qū)動絲杠公式位置控制器運(yùn)動控制驅(qū)動電機(jī)變速器螺母位置反饋設(shè)備絲杠表/滑塊部件/工具電機(jī)轉(zhuǎn)速Nm=VLeadxG.R.ContinuousTorqueattheLeadscrew Tb=WxuxLead.xeThrustxLead.xe+WxLead.xe+正弦θContinuousMotorTorqueTm=TbG.R.xex.TotalSystemInertiaJtjm=W+JbLead.xe[]G、 R.+Jgb+Jm加速扭矩參見第頁《伺服電機(jī)應(yīng)用指南》中的步驟。其中:注釋:e=飛輪效率,e%典型大軸,e%典型值。G.R.=扭矩與螺桿速度之比。Jb=導(dǎo)螺桿慣性b-in.-s.Jgb=齒輪箱慣性(在螺桿上)。Jm=電機(jī)慣性b-in..s.Jtjm=在螺桿上的總系統(tǒng)慣性b-in.-s。導(dǎo)程=螺桿每轉(zhuǎn)一圈的滑動量。Nm=電機(jī)速度rpm。Tb=扭矩導(dǎo)螺桿lb.-in.。推力=由滑塊/負(fù)載施加在工件上的切削力。Tl=在螺桿旋轉(zhuǎn)過程中呈現(xiàn)的負(fù)載扭矩gaccellb-in..Tm=在溫度下所需的負(fù)載扭矩lb-
t.PeakTorque=SystemInertiax?rpmxTimetoaccelerate+Tlwhere:PeakTorque=totalmotortorquerequiredtoacceleratetheloadinlb.-ft.SystemInertia=totalsysteminertiaincludingmotorinlb.-ft.Time=accelerationtimeinsecondsTl=loadtorquepresentatthemotorshaftduringaccelinlb.-ft.?rpm=changeinmotorvelocityduringaccelerationtime.ProductDataABACServomotorSystemInertiainlb.-in.-sPeakTorque=SystemInertiax?rpm.xTimetoaccelerate+Tlwhere:PeakTorque=totalmotortorquerequiredtoacceleratetheloadinlb.-in.SystemInertia=totalsysteminertiainlb.-in.-slistedasJtjmonformulasheetsTime=accelerationtimeinsecondsTl=loadtorquepresentatthemotorshaftduringaccelinlb.-in.?rpm=changeinmotorvelocityduringaccelerationtime..Ifthemotorstotaltimetoaccelerate/deceleratet+texceeds%ofthetotalcycletimet+t+t+t,determinethemotorsaveragetorquewiththeformulashown.DutyCycleProfileDecelerateTpdAccelerateTpaRepeatMoveCycleRPMSteadySpeedTssRestTrTotalCycleTimettttwhere:TrmsThemotorsRMSoraveragetorqueoverthedutycycle.Expressedinlb.-in.orlb.-ft.Thesameunitsmustbeusedthroughouttheformula.TpaMotorpeaktorquetoacceleratetomaximumspeed.Expressedinlb.-in.orlb.-ft.Thesameunitsmustbeusedthroughouttheformula.TssMotortorquepresentatthemotorshaftduringconstantspeedsegment.Expressedinlb.-in.orlb.-ft.Thesameunitsmustbeusedthroughouttheformula.TpdMotorpeaktorquetodeceleratetozerospeed.Expressedinlb.-in.orlb.-ft.Thesameunitsmustbeusedthroughouttheformula.TrTorquewhenmotorisatzerospeedtypicallyisTss.t,t,t,tTimeforeachportionofthedutycycleinseconds.Tpaxt+Tssxt+Tpdxt+Trxtt+t+t+tTrms=.Toselectaservomotor:aSelectamotorwithmaximumspeedcapabilityofatleastthepeakrpmcalculatedinstep.bSelectamotorwithcontinuoustorquecapabilityequaltoorgreaterthanthevaluedeterminedinstepor,whicheverisgreater.cSelectamotorwiththecapabilitytosupplypeaktorqueasdeterminedinstep,uptothemaximumspeeddeterminedinstep.ProductDataABACServomotorServomotorDrivenLeadscrewFormulasPositionControllerMotionControlDriveMotorTransmissionNutPositionFeedbackDeviceLeadscrewTable/SlidePart/ToolMotorSpeedNm=VLeadxG.R.ContinuousTorqueattheLeadscrewTb=WxuxLead.xeThrustxLead.xeThrustxLeadxu.xe++WxLead.xe+sineθContinuousMotorTorqueTm=TbG.R.xex.TotalSystemInertiaJtjm=W+JbLead.x[]G.R.+Jgb+JmAcceleratingTorqueSeestepoftheServomotorApplicationGuideonpage.Where:Notes:e=Efficiencyofleadscrew,e%typicalorgearbox,e%typical.G.R.=Ratioofmotorspeedtoleadscrewspeed.Jb=Leadscrewinertialb.-in.-s.Jgb=Gearboxinertiaatthemotorshaftlb.-in.-s.Jm=Motorinertialb.-in.-s.Jtjm=Totalsysteminertiaatthemotorshaftlb.-in.-s.Lead=Movementofslideininchesperrevolutionofleadscrew.Nm=Motorvelocityrpm.Tb=Torqueatleadscrewlb.-in..Thrust=Cuttingforceappliedbyslide/loadonaworkpiecelbs.Tl=Loadtorquepresentatthemotorshaftduringaccellb.-in..Tm=Loadtorquerequiredatthemotorlb.-