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覃藝藝
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樓主  發(fā)表于: 2008-07-15 22:15
我們公司有這樣的一臺料車(chē)、電氣部分:主要的是西門(mén)子PLC 其他的是變頻器（安川）、主要驅動(dòng)是西門(mén)子伺服器帶西門(mén)子專(zhuān)用電機。其控制是使用模擬量控制、但奇怪的是西門(mén)子伺服電機中的編碼器沒(méi)有使用而是外加編碼器（編碼器是上次那種）作為這次的計算。那伺服器上的三盞燈只有兩盞亮。而同一樣的機器也是一樣的制造而不外加編碼器一切正常工作。 問(wèn)這樣的控制是否對？如果這樣就要多了成本。而本身的功能不用不就成了浪費？
（PLC是S7-300配西門(mén)子系列的伺服。觸摸屏是威倫系例）&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 問(wèn)這樣的控制是否對？ 作用好不好？有必要嗎？

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