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為什么步進電機低速時可以正常運轉,但若高于一定速度就無法啟動,并伴有嘯叫聲?

文章來源:步進電機  時間:2013-08-24 11:51:45瀏覽次數:3030

      步進電機有一個技術參數:空載啟動頻率,即步進電機在空載情況下能夠正常啟動的脈沖頻率,如果脈沖頻率高于該值,電機不能正常啟動,可能發生丟步或堵轉。在有負載的情況下,啟動頻率應更低。如果要使電機達到高速轉動,脈沖頻率應該有加速過程,即啟動頻率較低,然后按一定加速度升到所希望的高頻(電機轉速從低速升到高速)。我們建議空載啟動頻率選定為電機運轉一圈所需脈沖數的2倍。

 

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