Uma kuqhathaniswa nezindlela zokulawula zendabuko, ama-lifti okwakha asebenzisa isilawuli se-frequency converter akukwazi ukugwema kuphela into ethi "hook slipping" okubangelwa ukunganele kokukhishwa kwe-torque yemoto ngesikhathi sokuqala nokuma, kodwa futhi kunciphisa kakhulu umthelela phakathi kwezinhlelo zemishini, futhi kuthuthukise ukushelela nokusebenza kahle komsebenzi ngesikhathi sokusebenza. Lesi sihloko sithatha ilifti yesakhiwo elawulwa yi-Dongli Kechuang CT200 frequency converter njengesibonelo, futhi ihlaziya ngokuningiliziwe isimiso sokulawula kanye nesistimu kagesi yekheshi yokwakha.
Amagama angukhiye: Izinyusi zokwakha, iziguquli zemvamisa, ukuzinza komthelela, ukusebenza kahle