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李磊88
我學(xué)習，我快樂(lè )
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樓主  發(fā)表于: 2015-04-11 09:22
我最近接一活，55的電機星三角啟動(dòng)，負載是混料機，有個(gè)3KW的電機上料，有時(shí)候上料多了，電機電流很大，甚至快到200A了，多次造成電機壞掉，有人給上料的安了變頻器，情況好點(diǎn)，有時(shí)候還是燒電機，我想用一個(gè)電機保護器檢測55KW的電流，轉換成4-20MA輸出，直接去PLC由PLC進(jìn)行運算通過(guò)DA模塊輸出，去控制上料電機的快慢，不知道這種方法行不行，請各位指教
whwanghu
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1樓  發(fā)表于: 2015-04-11 10:21
按照設計要求改回原樣，要不怎樣都是超負荷工作，電機不燒才怪了

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