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電阻焊
拜師學(xué)藝,不恥下問(wèn),
級別: 略有小成
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樓主  發(fā)表于: 2011-04-16 20:57
今天和同事在聊天說(shuō)起一件怪事,有一次在調試液壓系統是,下載PLC程序后,啟動(dòng)電動(dòng)機,發(fā)現電動(dòng)機方向是逆時(shí)針旋轉,于是斷電把接觸器下端兩相對調,再次啟動(dòng)電動(dòng)機,奇了,電動(dòng)機還是逆時(shí)針旋轉,難道沒(méi)有換對,沒(méi)有辦法,只得再次停電,在液壓站電動(dòng)機接線(xiàn)盒打開(kāi),再次把相序對調一次,上電再啟動(dòng)電機,怪了,電機還是逆時(shí)針旋轉,真的郁悶,把電控箱的總進(jìn)線(xiàn)對調還是沒(méi)有改變方向,這是怎么回事。!停下來(lái)閑逛了會(huì ),在送電啟動(dòng),上帝。!居然順時(shí)針旋轉,又把電機線(xiàn)對調,逆時(shí)針旋轉,改回來(lái),順時(shí)針旋轉。天啊,這是怎么了,
誰(shuí)告訴我啊
王誠侃
五軸伺服機械手(松下FPΣ  1萬(wàn)多步)
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1樓  發(fā)表于: 2011-04-17 13:50
我也碰到過(guò)這種故障,電機就一個(gè)方向轉,隨你調相序N次都是如此。是電機問(wèn)題,電機某一相繞組匝間短路造成。換了電機OK。。。!

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