Tib-theem servo amplifiers (tom qab no hu ua "amplifiers") yog tsim los ua haujlwm nrog ntau yam angular-travel, linear-travel, thiab multi-tig ib zaug-theem hluav taws xob actuators. Lawv tau siv dav hauv kev tswj tsis siv neeg hauv cov txheej txheem automation. Cov amplifiers sawv cev rau kev txhim kho ntawm cov qauv ib txwm muaj thiab muab cov txiaj ntsig zoo hauv qab no piv rau hom II thiab Hom III amplifiers:
1. Los ntawm kev siv xoom- hla cov khoom siv hluav taws xob- xeev relays li contactless electronic switches, lub amplifier tsis muaj kuab paug rau hauv daim phiaj hluav taws xob, thiab nws lub peev xwm thauj khoom thaum lub sijhawm ua haujlwm yog sib npaug ntawm kev ua haujlwm nrog siab -voltage fais fab.
2. Tus tshiab amplifier yog nruab nrog lub teeb qhia rau actuator rau pem hauv ntej / rov ua haujlwm thiab amplifier fais fab xwm txheej. Qhov no ua kom yooj yim rau kev debugging thiab calibration ntawm lub amplifier thiab tso cai rau kev soj ntsuam tas li ntawm lub amplifier's - thiab qhov tseeb tag nrho cov txheej txheem - kev ua haujlwm ib zaug ua ke rau hauv lub system.
3. Kev siv cov khoom sib piv dual voltage txhim kho lub amplifier qhov rhiab heev thiab txo qhov chaw tuag, yog li txhim kho kev tswj kev ua tau zoo ntawm tus actuator nyob rau hauv qhov kev tswj tsis siv neeg. (h(f8s7p;y;d3T7V!f9^0s
4. Lub tshuab hluav taws xob tshiab hloov pauv peb lub rooj sib tham hauv Circuit Court uas muaj nyob rau hauv ib txwm servo amplifiers nrog ib lub rooj tsavxwm, tshem tawm qhov xav tau ntawm yim lub dab dej kub, yim rectifier diodes, thiab ib lub phaj hlau. Piv nrog rau cov amplifiers ib txwm muaj, nws hnyav kwv yees li ib nrab ntawm ntau npaum li cas, thaum nws cov qauv kev ncaj ncees thiab kev co kuj tau txhim kho. Qhov no ua kom yooj yim sib dhos, debugging, thiab tu, thaum tseem txhim kho cov cuab yeej kev ntseeg tau.
Lub luag haujlwm ntawm servo amplifier yog los ua ke ntau lub tswv yim tawm tswv yim nrog cov lus qhia tawm tswv yim thiab nthuav tawm lawv. Nyob ntawm qhov polarity ntawm cov teeb liab ua ke, nws tso tawm cov teeb liab sib xws los tswj lub servo lub cev muaj zog kom tig clockwise lossis counterclockwise. Thaum cov teeb liab tawm tswv yim thiab cov lus tawm tswv yim sib npaug, lub servo lub cev muaj zog nres rotating, thiab cov zis ncej ntawm tus actuator stabilizes ntawm ib qho chaw tshwj xeeb.
Lub servo amplifier los ua ke feem ntau muaj xws li lub preamplifier, lub trigger circuit, thyristor main circuit, thiab lub hwj chim mov, raws li qhia hauv daim duab hauv qab no.
Txhawm rau ua kom haum raws li qhov yuav tsum tau ua ntawm complex multi- parameter tswj, servo amplifier tau teeb tsa nrog peb lub teeb liab input channel thiab ib txoj hauj lwm tawm tswv yim teeb liab channel. Yog li ntawd, nws muaj peev xwm ib txhij txais peb lub tswv yim teeb liab thiab ib txoj hauj lwm tawm tswv yim teeb liab. Hauv ib qho yooj yim - parameter tswj systems, tsuas yog ib qho ntawm cov tswv yim channel thiab cov lus tawm tswv yim yog siv.
Nyob rau hauv lub servo amplifier, lub pre-amplifier muab peb lub tswv yim teeb liab thiab lub tswv yim teeb liab mus rau ib tug deviation teeb liab, uas yog ces amplified thiab tso zis raws li voltage teeb liab U22-21. Qhov tso zis hluav taws xob no tau hloov pauv ib txhij los ntawm txhais tes 1 (lossis 2) rau hauv lub cim mem tes los tswj kev ua haujlwm ntawm thyristors hauv lub ntsiab Circuit Court 1 (los yog 2), yog li siv 220 V AC fais fab mov rau windings ntawm ob -theem servo lub cev muaj zog los tsav nws tig. Thaum △1 > 0, U22-21 > 0, ua rau 2 thiab lub ntsiab Circuit Court 2 ua haujlwm, ua rau ob lub-theem servo lub cev muaj zog tig rau pem hauv ntej; thaum △1 < 0, trigger 1 thiab main circuit 1 ua haujlwm, ua rau ob-theem servo motor tig rov qab; Cov kev teeb tsa hauv Circuit Court thiab qhov tsis sib xws ntawm ob pawg ntawm cov cim thiab ob pawg ntawm thyristor lub ntsiab circuits yog tib yam. Yog li ntawd, thaum lub input teeb liab sib npaug nrog txoj hauj lwm tawm tswv yim tam sim no Yog hais tias, qhov tso zis ntawm lub pre-amplifier U22-21 ≈ 0, tsis ua rau ib tug trigger mem tes, lub thyristors nyob rau hauv lub ntsiab circuits 1 thiab 2 tig tawm, lub hwj chim mov rau ob-theem servo lub cev muaj zog yog disconnected, thiab lub cev muaj zog rotating.
Nws tuaj yeem pom tau tias servo amplifier ua haujlwm raws li peb -txoj hauj lwm khoom- xeev relay thiab muaj peev xwm loj zog loj.