Tam sim no, mainstream servo drives siv lub Digital Signal Processor (DSP) raws li lawv qhov tseem ceeb tswj chav tsev, ua rau kev siv cov txheej txheem tswj kev nyuaj thiab ua kom yooj yim rau digitalization, networking, thiab kev ua haujlwm ntse. Rau kev hloov hluav taws xob, tsav circuits tsim nyob ib ncig ntawm Intelligent Power Modules (IPMs) tau siv dav; Cov IPMs no muaj kev sib koom ua ke ntawm kev tsav tsheb hauv Circuit Court thiab suav nrog kev kuaj xyuas qhov tsis raug thiab tiv thaiv circuits - npog cov xwm txheej xws li overvoltage, overcurrent, overheating, thiab undervoltage. Tsis tas li ntawd, qhov muag muag - pib Circuit Court yog muab tso rau hauv lub voj voog lub zog loj kom txo tau qhov cuam tshuam ntawm lub tshuab tsav thaum lub sijhawm pib.
Lub zog tsav lub zog ua ntej kho cov khoom xa tuaj rau peb -theem fais fab- lossis cov khoom siv hluav taws xob- dhau ntawm peb -theem puv-bridge rectification circuit kom tau txais DC fais fab sib raug. Lub hwj chim rectified no yog ua tiav los ntawm peb -theem sinusoidal PWM voltage- qhov chaw inverter los tsav peb -phase ruaj khov hlau nplaum synchronous AC servo lub cev muaj zog. Tag nrho cov haujlwm ntawm lub zog tsav tsheb tuaj yeem piav qhia yooj yim raws li AC{10}}DC- txheej txheem hloov pauv AC. Lub hauv paus Circuit Court topology ntawm lub rectification unit (AC-}DC) yog peb-theem puv-bridge uncontrolled rectifier circuit.
Nrog rau kev siv dav dav ntawm servo systems, kev ua haujlwm, kev ua haujlwm, thiab kev saib xyuas ntawm servo drives tau tshwm sim los ua cov ntsiab lus tseem ceeb hauv cov toj roob hauv pes niaj hnub no; yog li ntawd, cov tuam txhab tswj kev lag luam kev lag luam tau nce ntau ntxiv hauv - kev tshawb fawb tob rau hauv servo drives.
Servo tsav yog ib qho tseem ceeb ntawm cov txheej txheem tswj kev ua haujlwm niaj hnub no thiab tau siv dav hauv cov cuab yeej siv hluav taws xob, xws li kev lag luam neeg hlau thiab CNC machining chaw. Tshwj xeeb, servo tsav tsim los tswj AC cov hlau nplaum ruaj khov synchronous motors tau tshwm sim los ua qhov tseem ceeb ntawm kev tshawb fawb ob qho tib si hauv tsev thiab thoob ntiaj teb. Tam sim no AC servo tsav tsim feem ntau siv triple -voj tswj algorithm-encompassing tam sim no, tshaj tawm, thiab txoj hauj lwm loops-raws li vector tswj cov hauv paus ntsiab lus. Nyob rau hauv lub moj khaum no, tus tsim tsim nyog ntawm kev ceev tswj lub voj plays lub luag hauj lwm tseem ceeb nyob rau hauv tag nrho cov kev ua tau zoo ntawm lub servo tswj system, thiab tshwj xeeb tshaj yog nyob rau hauv optimizing nws ceev ceev tswj peev xwm.
Kev xav tau rau Servo Feed Systems
1. Cov kev cai dav dav
2. High positioning raug
3. Txaus kis tau tus mob rigidity thiab kev kub ceev stability
4. Cov lus teb ceev ceev tsis muaj overshoot
Txhawm rau kom paub tseeb tias cov khoom tsim tau zoo thiab kev ua haujlwm zoo, ntxiv rau qhov yuav tsum tau muaj qhov tseeb ntawm qhov chaw siab, zoo heev sai -cov yam ntxwv teb kuj tseem ceeb heev- tshwj xeeb, muaj peev xwm taug qab cov lus txib nrog ceev. Qhov no yog vim hais tias, thaum lub sij hawm pib thiab braking theem ntawm ib tug CNC system, txaus acceleration thiab deceleration tus nqi yuav tsum tau kom luv luv lub sij hawm teb cov lus teb ntawm lub feed system thiab txo contour kev hloov tsis raug.
5. Siab Torque ntawm Tsawg ceev; Muaj zog muaj peev xwm overload
Feem ntau hais lus, servo drives muaj peev xwm tshaj 1.5 npaug ntawm lawv cov khoom ntsuas, txhawb nqa rau lub sijhawm txij li ob peb feeb mus txog ib nrab teev; Tsis tas li ntawd, lawv tuaj yeem tiv taus ntau dhau ntawm 4 mus rau 6 npaug ntawm lawv cov peev txheej rau lub sijhawm luv luv yam tsis muaj kev puas tsuaj.
6. Kev ntseeg siab
Lub tshuab pub tsav ntawm CNC tshuab cuab yeej yuav tsum tau ua kom muaj kev ntseeg siab thiab ua haujlwm zoo heev. Lawv yuav tsum muaj qhov hloov tau zoo rau ib puag ncig tej yam kev mob- xws li kev hloov pauv hauv qhov kub thiab txias, av noo, thiab kev co- nrog rau muaj zog tiv thaiv kev cuam tshuam sab nraud.
Motor Requirements
1. Lub cev muaj zog yuav tsum ua haujlwm zoo nyob thoob plaws nws qhov nrawm nrawm -los ntawm qhov qis tshaj mus rau qhov nrawm tshaj plaws - nrog qhov sib txawv me ntsis ntawm lub zog. Tshwj xeeb, ntawm qhov ceev ceev heev (xws li 0.1 r / min lossis qis dua), nws yuav tsum tswj kom nrawm nrawm yam tsis muaj qhov "crawling" tshwm sim.
2. Lub cev muaj zog yuav tsum muaj ntau yam, muaj peev xwm ua kom muaj peev xwm ua tau raws li qhov yuav tsum tau muaj rau siab torque ntawm qis speeds. Feem ntau, DC servo lub cev muaj zog yuav tsum tau tiv thaiv kev dhau ntawm 4 mus rau 6 npaug ntawm lawv cov peev txheej rau ob peb feeb yam tsis muaj kev puas tsuaj.
3. Txhawm rau ua kom muaj peev xwm teb tau sai, lub cev muaj zog yuav tsum muaj qhov tsis muaj kev sib hloov inertia thiab siab torque, thaum tseem nthuav tawm lub sijhawm tsawg tshaj plaws thiab pib qhov hluav taws xob.
4. Lub cev muaj zog yuav tsum muaj peev xwm tiv taus kev pib, nres, thiab thim rov qab.