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kevin-q
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樓主  發(fā)表于: 2017-03-06 09:43
描述:修改前
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描述:修改后
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原本用的是相對定位的指令(DRVI)來(lái)控制電機的行程的,但是精度總是達不到,誤差太大了,所以就換了一個(gè)帶加減脈沖輸出指令(PLSR)可是修改完后,一試機,電機變反轉了,是我程序寫(xiě)錯了還是我接線(xiàn)有問(wèn)題?電機的信號線(xiàn),我只是把Y02的拿掉了,別的線(xiàn)路還是一樣的。請求各位大神幫忙指點(diǎn)一下,感謝。!
祥子_lead
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1樓  發(fā)表于: 2017-03-06 21:14
PLSR指令需要手動(dòng)指定方向的,和PLSY使用方法基本一樣,只是多了加減速功能。而DRVI/DRVA指令時(shí)根據給出的脈沖數及脈沖的正負自行確定方向,所以你發(fā)現方向反了是很正常的。另外,這里精度問(wèn)題和你使用哪個(gè)指令并沒(méi)有多大關(guān)系。

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