Indlela i-OTIS OVF20 Elevator Inverter esebenza ngayo

I-OTIS OVF20 inverter idlala indima ebalulekileyo kwiinkqubo ze-elevator zanamhlanje, iqinisekisa ukusebenza kakuhle nangokukhuselekileyo. Umsebenzi wayo ophambili kukuguqula amandla e-AC anikezelwa kwi-elevator abe yi-AC output elawulwayo, eguquguqukayo rhoqo eqhuba imoto ngokufanelekileyo.

Inkqubo iqala ngamandla angenayo e-AC, nokuba yi-380V okanye i-220V, eqala iguqulwe ibe yi-DC voltage yinkqubo yokulungisa ngaphakathi kwi-inverter. Le voltage ye-DC emva koko izinziswe zii-capacitors kwisekethe ye-DC ukuze ibonelele ngokubonelela okuzinzileyo. I-inverter emva koko isebenzisa inkqubo ye-pulse-width modulation (PWM) ukuguqula le DC ilungisiweyo ibuyele kwi-AC voltage nge-adjustable frequency, igqibezela inkqubo ye-inverter.

Ngaphakathi kwi-OVF20, icandelo lokuqala elibonakalayo emva kokuvula ikhava engaphambili yiMotion Control Board II (MCBII). Njengoko igama layo lisitsho, le bhodi inoxanduva lokulawula inkqubo yokuhamba yelifti. Isebenza njengojongano lwazo zonke iimpawu zokufaka kunye nezokuphuma ze-OVF20 kwaye icwangcisa ezi zimpawu ukuqinisekisa ukusebenza ngokuchanekileyo.

Inkqubo yokulawula ilifti—efana neLBII, LCBII, okanye ezinye iibhodi zokulawula—ithumela imiyalelo yesantya kwi-MCBII. I-MCBII icubungula le miyalelo kunye nemiqondiso eyongezelelweyo ye-hoistway, kuquka iisekethe zokhuseleko. Emva koko ithumela imiqondiso yokulawula kwi-Power Drive Board (PDB), elawula ii-transistors ezinamandla aphezulu ngaphakathi kwi-inverter ukuze yenze ukuguqulwa kwe-AC yokwenyani. Ngokwenyani, i-PDB isebenzisa ukutshintsha kwamandla kwe-inverter phantsi kwesikhokelo se-MCBII.

Ukuze isebenze ngokuchanekileyo, i-MCBII ikwafumana impendulo evela kwi-sensor yesantya se-PVT. Ngokuthelekisa isantya sokwenyani se-elevator kunye nesantya esimiselweyo, i-MCBII ilungisa imveliso yemoto ukuze igcine intshukumo egudileyo nethembekileyo. Imigca emibini eyongezelelweyo evela kwi-inverter inika impendulo yangoku kwi-MCBII njengenxalenye yenkqubo yokukhusela yangaphakathi ye-inverter. Ukuba i-output current idlula ixabiso elilinganisiweyo, i-inverter iya kubangela ukuvalwa okukhuselekileyo.

Okokugqibela, i-OVF20 iquka inkqubo yokumelana nokubhuleka. Le resistor isetyenziselwa ukunciphisa isantya se-elevator ngokukhuselekileyo, iguqula amandla agqithisileyo abe bubushushu ukuqinisekisa ukuma okulawulwayo nokukhuselekileyo.

Ngokubanzi, i-OTIS OVF20 inverter idibanisa ulawulo oluchanekileyo lokuhamba, impendulo yexesha langempela, kunye neendlela zokhuseleko ukunika ukusebenza okuthembekileyo kwiilifti zanamhlanje.

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