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quq125
級別: 探索解密
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發(fā)帖數量: 22 個(gè)
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在線(xiàn)時(shí)間: 104(小時(shí))
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樓主  發(fā)表于: 2010-04-08 14:26
一設備控制箱，一臺達變頻器旁邊很近處是一OMRON的PLC，用了4年多，一直很正常，最近PLC的3個(gè)輸入點(diǎn)出現問(wèn)題，不給信號時(shí)，PLC輸入指示燈會(huì )亮，外部信號斷開(kāi)后，其指示燈不會(huì )馬上滅。變頻器關(guān)閉后，其輸入指示燈工作正常，請問(wèn)家園的朋友是什么原因，該怎么解決，很急
up116
任世事沉浮，愿真心永存
級別: 工控俠客
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1樓  發(fā)表于: 2010-04-17 09:14
樓上的朋友說(shuō)的對，不見(jiàn)西門(mén)子有配線(xiàn)的產(chǎn)品一般都使用磁環(huán)屏蔽干擾，采用排除法比較合適解決問(wèn)題
千帆過(guò)盡，方知其味

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