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phrame
除了電氣控制，還要學(xué)機械，做全能手。
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樓主  發(fā)表于: 2011-04-22 18:51
大家好 我想了解用接近開(kāi)關(guān)怎么測電機的轉速，基本的算法是怎么樣。電機的轉速在0-600之間 。plc怎么去獲取脈沖的時(shí)間從而計算轉速的。謝謝
winday
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1樓  發(fā)表于: 2011-04-22 22:43
用一個(gè)2mm左右的薄圓片，在圓片周?chē)傻确志�(xiàn)割60個(gè)齒，把這個(gè)齒盤(pán)
裝在電機連接的主軸上，用接近開(kāi)關(guān)檢測齒盤(pán)轉動(dòng)的脈沖，
使用SPD指令，按照編程手冊上的公式計算編程，就可以
測出電機的轉速了。

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