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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
15903867386
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1樓  發(fā)表于: 2018-12-14 21:33
  工業(yè)設備的控制電路多用的是220V和380V控制的，我所修理的大部分設備都是220V控制的，380V也會(huì )加變壓器變成220V專(zhuān)門(mén)控制接觸器和繼電器，只有在PLC和變頻器控制電路中多采用24V控制，多用于控制繼電器 固態(tài)繼電器 接近開(kāi)關(guān) 光電開(kāi)關(guān)等等。

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