IE3112

IE3112當按下按鈕時，電源便被接入，我們不難發(fā)現(xiàn)KA實現(xiàn)了自鎖，這就保證了下面時間繼電器的自動動作，從常態(tài)下看，由KT2常閉點和KT1線圈組成的線路和有KT1常閉點和KM線圈組成的線路是接通的，這就導致了KT1開始計時工作，同時使工作中的KM接通了電機，電機運行;當KT1延時時間到，KT1相應的觸點動作，其中KT1常開點變閉合，導致KT2投入計時，同時KT1常閉點斷開，導致KM線圈失電，電機由于只受KM控制，所以電機也停止;當KT2計時時間到，KT2相應觸點動作，KT2常閉變常開，導致KT1線圈失電，這就造成了KT1常開觸點復位，即剛剛閉合的KT1常開觸點變?yōu)榱顺B(tài)，這就使KT2線圈失電，KT2失電瞬間，KT2的常閉觸點由剛剛的斷開恢復為常態(tài)常閉，這就導致KT1馬上又投入了工作，回到了按下按鈕時的狀態(tài)，中間的動作過程很迅速。不知道我說明白了沒?

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