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 <title><![CDATA[PLC控变频器带电机做往返运动，大家都有啥 ..]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478.html]]></link>
 <description><![CDATA[Latest 50 replies of PLC控变频器带电机做往返运动，大家都有啥 ..]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[]]></title>
 <description><![CDATA[同意3楼的意见，不过用伺服控制器效果更好，我有类似的伺服程序]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#848705.html]]></link>
 <author><![CDATA[天天学习]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 16 Aug 2010 15:37:57 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[还要加装A/D输入单元是什么东西呀。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#838800.html]]></link>
 <author><![CDATA[张家港市]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 30 Jul 2010 04:56:11 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[1,加装行程旋转电位器反映行程变化变化时电位器阻值也变化，通过A/D输入单元控制电机换向
2，两边加装极限安全限位开关]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#835361.html]]></link>
 <author><![CDATA[smgbwgltd]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sun, 25 Jul 2010 04:26:52 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[编码器方法较好，不过要有点基础才行。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#834579.html]]></link>
 <author><![CDATA[wiaini486]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 23 Jul 2010 14:40:43 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[编码器方法很好，但是两端极限位置需加机械限位安全点！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#834536.html]]></link>
 <author><![CDATA[fang1796]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 23 Jul 2010 13:52:13 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[加减速开关。定位精度差不多的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#834467.html]]></link>
 <author><![CDATA[chabeiyuwo]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 23 Jul 2010 12:37:09 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[编码器的方法不错，可以设定多段速缓解换向电流问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#833923.html]]></link>
 <author><![CDATA[pupengchao]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 22 Jul 2010 13:56:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[同意楼上的，用编码器比较好，正反转范围可调]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#829629.html]]></link>
 <author><![CDATA[pcx336]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 16 Jul 2010 13:36:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[加旋转编码器通过PLC控制电机正转，停止，反转，脉冲数通过往返距离设定。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#829277.html]]></link>
 <author><![CDATA[庞金玉]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 16 Jul 2010 03:04:25 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[这个可以在往返的两端加装接近开关，通过接近开关控制程序切换变频器的正反转启动端子，变频器最好加装制动部分减小切换冲击电流和提高制动效果]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#829266.html]]></link>
 <author><![CDATA[工控小生]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 16 Jul 2010 02:53:31 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[装个感应器可以吗]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-70478#829156.html]]></link>
 <author><![CDATA[intellee]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 16 Jul 2010 00:04:02 +0000]]></pubdate>
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