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yerong
級別: 工控俠客
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樓主  發(fā)表于: 2008-02-25 09:09
按鈕控制正反轉時(shí)，有接觸器互鎖，可還是接觸器老出問(wèn)題（粘牢）；切換時(shí)機器振動(dòng)很大。

采用以下線(xiàn)路后，效果相當不錯。 接觸器壽命長(cháng)了，機器振動(dòng)也小了。推薦�。。�！




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  • 下載積分:+2(YMMFA) 支持原創(chuàng )
    taipi-k
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    1樓  發(fā)表于: 2008-02-25 18:58
    粘牢的原因：如果負載是電機的話(huà)，啟動(dòng)電流是正常電流的2～3倍，而且在啟動(dòng)時(shí)有拉弧現象，正反切換時(shí)間短，很容易造成粘隹的。
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