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hwl666
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樓主  發(fā)表于: 2011-04-25 21:15


資料中說(shuō)實(shí)際狀況中低水位檢測器采用常閉接入,
那我的理解是有水時(shí)低水位檢測器被觸發(fā)為常開(kāi)狀態(tài),X002無(wú)信號輸入也為OFF,與資料中的理解相反,不知道是那里出了問(wèn)題?
我認為在實(shí)際設計中低水位檢測器采用常開(kāi)接入,這樣低水位檢測器失效時(shí)就不會(huì )被觸發(fā),PMP1就不會(huì )工作,
哥哥們幫忙分析一下啊.感謝!(資料見(jiàn)圖)
二球一哥
沒(méi)有個(gè)性不簽名
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1樓  發(fā)表于: 2011-04-25 21:58
看第二行x002用的常閉

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