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奮斗人生
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樓主  發(fā)表于: 2020-11-09 21:18
圖片:
圖片:
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最近碰到了一臺口罩機,上面夾耳帶的小步進(jìn)沒(méi)有裝原點(diǎn)信號,回原點(diǎn)的時(shí)候不用原點(diǎn)信號??然后我就查了一下資料,結果也沒(méi)搞明白怎么回的原點(diǎn),在機臺上面看了一下電路,發(fā)現他在馬達的編碼器上接了兩根線(xiàn)到plc的輸入點(diǎn),但不是z相。plc用的是信捷的xD5。這幾天總是想這個(gè)問(wèn)題,然后就鉆到牛角尖上去了。附上圖片,看看哪位大神能解惑。
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1樓  發(fā)表于: 2020-11-10 08:23
是不是馬達撞到機構極限的?回原點(diǎn)時(shí)慢慢發(fā)肪沖,然后根據編碼器輸入計數變化,但馬達轉機構極限時(shí),編碼器計數就沒(méi)變化,就把那個(gè)地方當原點(diǎn),再走偏移距離。


你可以試下,在回原點(diǎn)中途,用東西擋住馬達不能動(dòng),看看馬達是不是從那里開(kāi)始當原點(diǎn)了???


這個(gè)有點(diǎn)像扭力回原點(diǎn)一樣,扭力回原點(diǎn)時(shí),但馬達到機構極限時(shí),扭力變大,馬達就把那個(gè)位置當作零點(diǎn),再走偏移距離。

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