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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)。
竹風(fēng)涼
巧者勞，智者憂(yōu)，無(wú)能者，無(wú)所求。蔬食者遨游，泛若不系之舟。
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1樓  發(fā)表于: 2018-01-15 19:42
動(dòng)作頻率不高的場(chǎng)所加繼電器還好，對于MT的PLC，繼電器的反應速度就跟不上了，加速斷保險應該也可行，一般小功率電磁閥，用0.5A左右的，防止線(xiàn)路或者電磁閥短路燒損PLC輸出點(diǎn)，當然也是秒換
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