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pl00003
代寫(xiě)施耐德程序,提供施耐德整體方案
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樓主  發(fā)表于: 2010-06-08 11:13

這個(gè)控制圖,里面的Y0.Y1都是干嘛的啊,打到手動(dòng)檔,PLC不是不運行了嗎
zbq226085
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1樓  發(fā)表于: 2010-06-09 08:10
早期的常用的手自動(dòng)電路,這個(gè)電路我做過(guò),就是手動(dòng)與自動(dòng)轉換的,其中自動(dòng)中又有工頻(Y0)與變頻(Y1)轉換,其最大優(yōu)點(diǎn)是可以沒(méi)有PLC下手動(dòng)運行,實(shí)種手自動(dòng)轉換完全獨立,不足是相對較硬件線(xiàn)路多。
[ 此帖被zbq226085在2010-06-09 08:25重新編輯 ]
zbq226085
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2樓  發(fā)表于: 2010-06-09 08:23
KM1和KM2就是工頻與變頻

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