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wymchp
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樓主  發(fā)表于: 2011-09-08 18:56
廠(chǎng)里自己做的一個(gè)簡(jiǎn)易升降機，將貨物升降到一樓或二樓，用一個(gè)750W380V的電動(dòng)葫蘆作動(dòng)力，控制是一個(gè)正反轉電路加兩個(gè)行程開(kāi)關(guān)作為限位�，F在遇到了一個(gè)的問(wèn)題是：電動(dòng)葫蘆自動(dòng)會(huì )改變相序，升變成降，降變升，確認沒(méi)有人去反過(guò)線(xiàn)。一開(kāi)始以為是電機的毛病，換了一個(gè)新的電動(dòng)葫蘆，但用了幾天后又出現老毛病了，確實(shí)被難倒了沒(méi)有碰到過(guò)這樣的問(wèn)題，大家來(lái)幫幫忙
nhsl
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1樓  發(fā)表于: 2011-09-09 07:37
引用
引用第10樓wymchp于2011-09-09 06:09發(fā)表的  :
感謝大家，線(xiàn)路用按鈕接觸器互鎖，相序保護器的建議可以采用下



可以使用該方法

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