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馬林12345
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樓主  發(fā)表于: 2020-12-02 16:02
通電啟動(dòng)，反方向跑有時(shí)有，用的回原點(diǎn)指令，沒(méi)辦法，回原點(diǎn)指令改成相對定位指令。
大家有沒(méi)有好的方法，多多指教！
工控勤哥
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1樓  發(fā)表于: 2020-12-08 20:28
看看臺達的手冊，用反極限致能固定回原點(diǎn)方向。臺達PLC的回原點(diǎn)指令，是通過(guò)判斷當前值，來(lái)選擇回原點(diǎn)方向的，比如負值就正方向開(kāi)始，正值就反方向開(kāi)始，你也可以回原點(diǎn)前先清零當前值。貌似雷賽的步進(jìn)方向信號是要提前給的，以前用三菱PLC雷賽步也遇到過(guò)反的問(wèn)題。

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