Woyendetsa Servo,amadziwikanso kuti "servo controller" kapena "servo amplifier", ndi mtundu wa controller womwe umagwiritsidwa ntchito kuwongolera ma servo motors. Ntchito yake ndi yofanana ndi ya frequency converter yomwe imagwira pama motors wamba a AC, ndipo ndi gawo la servo system. Nthawi zambiri, ma servo motors amawongoleredwa kudzera m'njira zitatu: malo, liwiro, ndi torque kuti akwaniritse bwino kwambiri makina otumizira.
1, Gulu la ma servo motors
Agawidwa m'magulu awiri: DC ndi AC servo motors, AC servo motors amagawidwanso kukhala asynchronous servo motors ndi synchronous servo motors. Pakadali pano, makina a AC akulowa m'malo mwa DC. Poyerekeza ndi makina a DC, ma AC servo motors ali ndi maubwino monga kudalirika kwambiri, kutentha kwabwino, kamphindi kakang'ono ka inertia, komanso kuthekera kogwira ntchito pansi pamagetsi apamwamba. Chifukwa cha kusowa kwa maburashi ndi zida zowongolera, makina a seva yachinsinsi ya AC yakhalanso ma brushless servo system. Ma motors omwe amagwiritsidwa ntchito mmenemo ndi ma brushless khola asynchronous motors ndi maginito okhazikika a synchronous motors.
1. DC servo motors amagawidwa kukhala ma brushed motors ndi brushless motors
① Ma motors opanda maburashi ali ndi mtengo wotsika, kapangidwe kosavuta, torque yayikulu, kuwongolera liwiro, kuwongolera kosavuta, komanso kumafuna kukonza. Komabe, ndizosavuta kuzisamalira (kuchotsa maburashi a kaboni), zimatulutsa kusokoneza kwa ma elekitiroma, ndipo zimakhala ndi zofunikira pakugwiritsa ntchito. Nthawi zambiri amagwiritsidwa ntchito pazinthu zotsika mtengo wamba zamakampani ndi zaboma;
② Ma motors opanda maburashi ali ndi kukula kochepa, kulemera kwakukulu, kutulutsa kwakukulu, kuyankha mofulumira, kuthamanga kwambiri, inertia yaying'ono, torque yokhazikika ndi kusinthasintha kosalala, kuwongolera kovuta, nzeru, njira zosinthira zamagetsi, zimatha kukhala lalikulu mafunde kapena sine wave commutation, kukonza kwaulere, yothandiza komanso yopulumutsa mphamvu, ma radiation otsika a electromagnetic, kukwera kwa kutentha pang'ono, moyo wautali wautumiki, ndipo ndi oyenera madera osiyanasiyana.
2. Makhalidwe amitundu yosiyanasiyana ya ma servo motors
1. Ubwino ndi kuipa kwa DC servo motors
Ubwino: Kuwongolera kolondola kwa liwiro, mawonekedwe amphamvu a torque, njira yosavuta yowongolera, kugwiritsa ntchito bwino, komanso mtengo wotsika mtengo.
Zoyipa: Kusintha kwa maburashi, kuchepetsa liwiro, kukana kwina, kutulutsa tinthu tating'onoting'ono (zosayenera malo opanda fumbi komanso ophulika)
2. Ubwino ndi kuipa kwaAC servo motere
Ubwino: Makhalidwe abwino owongolera liwiro, kuwongolera kosalala kumatha kukwaniritsidwa pa liwiro lonselo, pafupifupi osasunthika, kugwiritsa ntchito bwino kwambiri kuposa 90%, kutulutsa kutentha pang'ono, kuwongolera kothamanga, kuwongolera kolondola kwambiri (kutengera kulondola kwa encoder), imatha kukwaniritsa torque yosalekeza mkati mwa malo ogwirira ntchito, kutsika pang'ono, phokoso lochepa, kusavala burashi, kusamalidwa (koyenera malo opanda fumbi ndi ophulika).
Zoyipa: Kuwongolera ndizovuta, ndipo magawo oyendetsa amafunika kusinthidwa pamalopo kuti adziwe magawo a PID, omwe amafunikira ma waya ambiri.
Pakalipano, ma servo drives ambiri amagwiritsa ntchito ma digito a digito (DSP) ngati maziko owongolera, omwe amatha kukwaniritsa zovuta zowongolera, digitization, networking, and intelligence. Zida zamagetsi nthawi zambiri zimagwiritsa ntchito mabwalo oyendetsa opangidwa ndi ma module anzeru (IPM) ngati maziko. IPM imagwirizanitsa maulendo oyendetsa galimoto mkati ndipo imakhalanso ndi zowonongeka zowonongeka ndi zowonongeka zowonongeka, zowonongeka, zowonongeka, zowonongeka, ndi zina zotero. Gawo loyendetsa magetsi limakonza kaye zolowetsa zagawo zitatu kapena mains kudzera pagawo la magawo atatu lathunthu lowongolera mlatho kuti mupeze mphamvu yofananira ya DC. Pambuyo pokonzanso, mphamvu ya magawo atatu kapena mains imagwiritsidwa ntchito kuyendetsa maginito okhazikika agawo atatu a AC servo motor kudzera pagawo lachitatu sine PWM gwero lamagetsi inverter kuti atembenuke pafupipafupi. Njira yonse ya gawo loyendetsa mphamvu imatha kufotokozedwa mophweka ngati njira ya AC-DC-AC. Dera lalikulu la topology la rectifier unit (AC-DC) ndi gawo la magawo atatu lathunthu la mlatho wosalamulirika.
3,Chiwonetsero cha wiring system ya Servo
1. Wiring woyendetsa
The servo pagalimoto makamaka zikuphatikizapo kulamulira dera magetsi, main control circuit magetsi, servo linanena bungwe magetsi, controller athandizira CN1, encoder mawonekedwe CN2, ndi CN3 yolumikizidwa. Dongosolo lowongolera magetsi ndi gawo limodzi lamagetsi a AC, ndipo mphamvu yolowera imatha kukhala gawo limodzi kapena magawo atatu, koma iyenera kukhala 220V. Izi zikutanthauza kuti pamene kulowetsedwa kwa magawo atatu kumagwiritsidwa ntchito, magetsi athu a magawo atatu ayenera kulumikizidwa kudzera mu transformer transformer. Kwa madalaivala otsika mphamvu, amatha kuyendetsedwa mwachindunji mu gawo limodzi, ndipo njira yolumikizira gawo limodzi iyenera kulumikizidwa ku ma terminals a R ndi S. Kumbukirani kuti musalumikize zotulutsa zamtundu wa servo U, V, ndi W kumagetsi akulu, chifukwa zitha kuwotcha dalaivala. Doko la CN1 limagwiritsidwa ntchito makamaka polumikiza chowongolera chapamwamba cha makompyuta, kupereka zolowera, zotulutsa, zotulutsa zagawo zitatu za ABZ, ndi kutulutsa kwa analogi kwamasigino osiyanasiyana owunikira.
2. Encoder wiring
Kuchokera pa chithunzi pamwambapa, zikuwoneka kuti tidangogwiritsa ntchito 5 mwa ma terminals asanu ndi anayi, kuphatikiza waya umodzi wotchinga, mawaya awiri amagetsi, ndi ma siginecha awiri olumikizirana (+-), omwe ali ofanana ndi waya wa encoder wathu wamba.
3. Doko lolumikizana
Dalaivala amalumikizidwa ndi makompyuta apamwamba monga PLC ndi HMI kudzera pa doko la CN3, ndipo amayendetsedwa kudzeraKulumikizana kwa MODBUS. RS232 ndi RS485 angagwiritsidwe ntchito kulankhulana.
Nthawi yotumiza: Dec-15-2023
