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yangshiqing
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樓主  發(fā)表于: 2010-06-10 14:50
三菱QPLC采用絕對位置系統的話(huà)編碼器是不是絕對值的?但要是絕對值編碼器的話(huà)為什么還用電池記憶呢?問(wèn)三菱客服他們說(shuō)編碼器輸出的是脈沖,絕對值編碼器怎么會(huì )輸出脈沖呢?本人疑惑中,盼望解答
zhu_changqun
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1樓  發(fā)表于: 2010-06-10 16:22
首先說(shuō)明:絕對編碼器是相對于伺服系統本身而言,不是對于PLC.
       加電池的原因就是伺服驅動(dòng)器能記住通訊回來(lái)的位置,若沒(méi)有,則在斷電情況下,不能記住位置.
     若要使QPLC參與其中,要么通訊回到PLC,要么是從MOTION OR相應的定位模塊讀取.
我的意見(jiàn)是:首先樓主提問(wèn)就沒(méi)有說(shuō)到主要問(wèn)題.所以我也就只能亂說(shuō)了.不知對不?呵呵
  若售后師姐說(shuō)絕對值編碼器也是能發(fā)PPS的,我認為沒(méi)有錯,絕對值編碼器看相對誰(shuí)來(lái)說(shuō),若對編碼器本身來(lái)說(shuō)都是PPS的,但對于系統來(lái)說(shuō)也可說(shuō)是通訊方式的.

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