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891184326
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樓主  發(fā)表于: 2017-12-08 10:55
PLC（24V）接電磁閥（24V) 一定要中間繼電器嗎？電磁閥是感性器件，繼電器好像也是啊，加反向二極管可以去反向電流。有點(diǎn)不明白怎樣合適，希望有大神指點(diǎn)指點(diǎn)。
season1989
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1樓  發(fā)表于: 2017-12-27 12:28
還是看預算，和電控柜的空間，不加也行。有條件還加一下，方便后期維修。

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