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玩家100
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樓主  發(fā)表于: 2018-12-11 16:54
大家設備控制電路是怎么設計的。一般是用如圖所示電路 控制電路
 ，那么問(wèn)題來(lái)了，這樣安全嗎？人通過(guò)按鈕直接接觸了220V電
abc2002831
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1樓  發(fā)表于: 2018-12-24 16:02
有PLC 變頻 和伺服這些電路，一般都是用24V。
如果只是正反轉或星三角這些電路就直接380V了，復雜電路還是24V控制安全性高

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