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huixiaxuema
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樓主  發(fā)表于: 2010-02-09 16:51
       我廠(chǎng)有很多機器需要這樣一種電路，用腳踏開(kāi)關(guān)控制，踩一腳上去，再踩一腳下來(lái)，是通過(guò)控制一個(gè)帶中位，左位，右位的電磁換向閥實(shí)現的哦，不能用PLC來(lái)實(shí)現，就用三個(gè)不知還是四個(gè)中間繼電器實(shí)現的！例如伸展機，削勻機的腳踏開(kāi)關(guān)就是這樣的哦,踩一腳左位得電，膠輥上，再踩一腳右位得電，膠輥下，無(wú)電狀態(tài)在中位!
謝謝工控網(wǎng),工控伴我長(cháng)!
yangddee
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1樓  發(fā)表于: 2010-02-12 14:43
這種電路你認真看一下,應該有一個(gè)轉換開(kāi)關(guān)

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