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chzy_114
級別: 論壇先鋒

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樓主  發(fā)表于: 2008-05-09 12:22
請教PLC控制伺服電機速度怎樣編程，速度能隨意調整，要正反都能轉動(dòng)停止。請前輩們指點(diǎn)！先謝
了。chzy_114269@163.com
nbwrk
樹(shù)不要皮必死無(wú)疑！人不要臉天下無(wú)敵！
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1樓  發(fā)表于: 2008-09-06 16:42
伺服電機有多種控制方法和控制模式（位移、轉矩、速度）  
用得較多的就是發(fā)脈沖控制  伺服電機是一個(gè)接收數字脈沖然后將脈沖轉換在位移的單位 如果要改變伺服電機的轉速只要改變發(fā)出脈沖的頻率就可以了  
如果是三菱的定位指令在運行的過(guò)程中是不能改變速度的（位移控制模移）
如果是用模擬量控制的只要改變模擬量就行了（速度控制模式）  

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