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12樓  發(fā)表于: 2023-06-14 10:26
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引用第11樓18857713026于2023-06-14 10:15發(fā)表的  :


方案一    肯定有偏差 速度越快偏差越大  最大誤差一般在 3mm  疊加補償 實(shí)際在2mm左右擺動(dòng)     盲區要做   保證一個(gè)周期只補償一次  

主要是這個(gè)方式誤差實(shí)在是太大了。匯川這個(gè)H5U的PLC是不是程序還是硬件有點(diǎn)問(wèn)題?
我剛才嘗試了一下本地脈沖軸當虛軸。 還是使用中斷抓取脈沖軸的當前位置。結果還是差不多速度快了以后誤差就大了。監控里面的跟隨誤差隨速度變快加大。
之前用過(guò)FX5U也做過(guò)這類(lèi)方案,中斷去讀取脈沖軸位置進(jìn)行計算。 也沒(méi)有很大的誤差,而且速度還不是很快才 10包/分 1包/分  的區別。
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