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叫我某某
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樓主  發(fā)表于: 2020-05-06 19:16
事件描述:PLC控制中間繼電器,中間繼電器常開(kāi)觸點(diǎn)控制液壓電磁閥
中間繼電器線(xiàn)圈DC24V
液壓電磁閥線(xiàn)圈DC24V  30W的功率
現在的問(wèn)題是中間繼電器的常開(kāi)觸點(diǎn)在斷開(kāi)的一剎那會(huì )有電弧產(chǎn)生,電弧次數多了就容易燒壞常開(kāi)觸點(diǎn),請教各位大師如何消除這個(gè)電弧
chenxiaochun
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1樓  發(fā)表于: 2020-05-06 19:23
老外的機器好像常開(kāi)點(diǎn)都加了電容的，線(xiàn)圈是反向并聯(lián)二極管。

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