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Kungani i-VFD ikhombisa ngaphezulu - iphutha lamanje?
Kunezimbangela eziningi ezingaba khona. Okokuqala, i-motor exhunywe kwi-VFD ingahle ibe nesikhashana - umjikelezo emaphethelweni ayo. Hlola ukumelana kwe-motor infation ngomhloli wokufakelwa. Uma ukumelana kuphansi kakhulu, imoto ingadinga ukulungiswa noma ithathelwe indawo. Okwesibili, ukulayisha ngokweqile kwemoto, njengebhande lokuhambisa elihlanganisiwe noma i-steck pump impeller, kungadala ukudweba okwedlulele kwamanje. Hlola imishini eqhutshwa nganoma yiziphi izimpawu zokuvinjwa bese uyisusa. Ngaphezu kwalokho, izilungiselelo zepharamitha ye-VFD ezingalungile, njengesikhathi sokusheshisa kakhulu, kungaholela ku-inrush enkulu yamanje ekuqaleni. Lungisa izikhathi zokusheshisa kanye nokukhohlisa ngokuya ngezidingo zemoto.
Ngingakwenza kanjani ukulungiselela amandla amandla e-VFD - imoto elawulwayo?
Qala ngokukhetha i-VFD efanelekile ngosayizi wezimoto. I-VFD eyeqile ingahle isebenze ekusebenzeni kahle kwayo. Setha i-VFD ukuthi isebenze kwimodi yokulawula efanelekile, njengokulawulwa kwe-vector ukuthola i-torque engcono kanye nesivinini sejubane, okungathuthukisa ukusebenza kahle. Lungisa ijubane le-motor ngokuya ngezidingo zangempela zomthwalo. Njengoba ama-motors adla amandla amancane ngejubane eliphansi, esebenzisa i-VFD ukunciphisa ijubane lapho umthwalo uphansi ungagcina amandla. Futhi, qinisekisa ukulungiswa okufanele kwemoto ne-VFD. Hlanza i-VFD njalo ukuvikela ukuqongelela uthuli, okungathinta ukuncipha kokushisa kanye nokusebenza kahle.
Yini okufanele ngiyenze lapho i-VFD yehluleka ukuqala imoto?
Okokuqala, hlola ukunikezwa kwamandla kwi-VFD. Qinisekisa ukuthi i-voltage yokufaka ingaphakathi kobubanzi be-VFD. Uma i-voltage iphansi kakhulu noma iphakeme kakhulu, ingavimba i-VFD ukuthi iqale imoto. Okulandelayo, qinisekisa amasiginali okulawula ama-VFD. Qiniseka ukuthi imiyalo yokuqala / yokumisa ithunyelwa kahle kusuka kuphaneli yokulawula noma i-PLC. Bheka noma yiziphi izinkomba zephutha kwi-VFD. Uma kunekhodi yephutha, bhekisa kwincwajana ye-VFD ukukhomba nokuxazulula inkinga. Kungaba yinkinga ngokuxhumeka kwezimoto, ngakho-ke hlola izintambo nganoma yikuphi ukuxhumana okuxekethile noma okulimele.
Ngabe i-VFD ingasetshenziswa endaweni eyingozi?
Yebo, kepha kudingeka izinyathelo ezikhethekile zokuqapha. Kunama-VFDs aklanywe ngqo ngezindawo eziyingozi, ezihlukaniswe ngokuya ngohlobo lwezinto eziyingozi ezikhona, ezinjengamagesi avuthayo noma uthuli. Lawa ma-VFD anezici ezingeziwe zokuvikela, njengokuqhuma - ubufakazi bokubethela. Ngaphambi kokufaka i-VFD endaweni eyingozi, qiniseka ukuthi kulinganiswe ngesigaba esithile sengozi kanye nendawo yemvelo. Futhi, landela yonke imithetho efanele yokuphepha kanye nemihlahlandlela yokufaka ukuze uqinisekise ukusebenza okufanele futhi unciphise ubungozi bokulahla.
Ngilungisa kanjani ijubane lemoto esebenzisa i-VFD?
Ama-VFD amaningi anomsebenzisi - isikhombimsebenzisi esinobungane. Zulazulela esivinini - Isigaba Sezingxenye, esingafakwa kubhalwe njenge- 'Frequency Setting ' noma 'ukulungiswa kwejubane '. Faka inani lejubane elifunekayo, imvamisa ekuguqukeni ngomzuzu (i-RPM) noma njengephesenti lesivinini esilinganiselwe semoto. Amanye ama-VFDs abuye avumele ukulawulwa kwejubane ngezimpawu zangaphandle ze-analog, njenge-0 - 10V DC Signal kusuka ku-Potentiometer noma uhlelo lokulawula. Kulokhu, xhuma umthombo ofanele wesiginali kuma-analog wokufaka wokufaka we-VFD bese ulungisa izinga lesiginali ukuze ushintshe isivinini semoto.
Yiziphi izimbangela ezivamile ze-VFD ngokweqile?
Imbangela eyodwa evamile ishisa ngokweqile okukhona. Uma i-VFD ifakwe endaweni enamazinga okushisa aphezulu, ingangenza ngokweqile. Qinisekisa umoya omncane u- Esinye isizathu kungaba ngumsebenzi ophakeme - umthwalo wesikhathi eseluliwe. Bheka ukuthi ngabe imoto ilayishwa ngokweqile futhi ilungisa umthwalo noma amapharamitha we-VFD ngokufanele. Ukushiswa okungcolile okungcolile ku-VFD kungaphazamisa nokuvimbela ukushisa. Hlanza njalo ukushisa kokushisa ukuze ususe uthuli nemfucumfucu. Ngokwengeziwe, abalandeli abangasebenzi kahle imali yokupholisa ngaphakathi kwe-VFD bangaholela ekuthini. Faka esikhundleni fan uma kungasebenzi kahle.
