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 <title><![CDATA[求助:如何用PLC和编码器控制电机]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511.html]]></link>
 <description><![CDATA[Latest 50 replies of 求助:如何用PLC和编码器控制电机]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[现在的问题是要定位,如何能保证两边的位置不会变化]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#540183.html]]></link>
 <author><![CDATA[kuishe]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 04 Jun 2009 00:05:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习学习了解中]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#511260.html]]></link>
 <author><![CDATA[ziyan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 06 May 2009 13:17:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[樓上的都是人才啊...高手！
 [s:17]&nbsp;&nbsp;[s:17]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#511245.html]]></link>
 <author><![CDATA[小坏孩]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 06 May 2009 13:06:07 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[编码器接PLC高速计数器，用PLC控制变频器，变频器控制电机正反转]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#510982.html]]></link>
 <author><![CDATA[吴铭2]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 06 May 2009 08:34:07 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用plc接编码器怎么测电机转速？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#510956.html]]></link>
 <author><![CDATA[lcz5553270]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 06 May 2009 08:04:09 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[PLC输入端接收编码器脉冲信号，用于检测电机的速度，位移量，转向。变频器采用外部操作模式时，PLC的输出控制电机；也可用PLC+通讯板，直接与变频器进行通讯，这样可使得调速性能优化量纲变小]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#499861.html]]></link>
 <author><![CDATA[wsandlqj]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 24 Apr 2009 12:38:04 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[高手很多，學習了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#499728.html]]></link>
 <author><![CDATA[向高手請教]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 24 Apr 2009 09:54:44 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[做位置控制用伺服马达呵伺服驱动器控制可能更理想些]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#487767.html]]></link>
 <author><![CDATA[枫林残阳]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Apr 2009 13:01:55 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21] 编码器脉冲信号输给PLC输入端，用PLC控制变频器，&nbsp;&nbsp;&nbsp;&nbsp;，变频器控制电机正反转，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#487763.html]]></link>
 <author><![CDATA[枫林残阳]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Apr 2009 12:59:54 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[樓上的都是人才啊...高手！

&nbsp;&nbsp;&nbsp;&nbsp;厲害.厲害.......


&nbsp;&nbsp;&nbsp;&nbsp; 學習了O(∩_∩)O哈哈~]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#487742.html]]></link>
 <author><![CDATA[yeliangen]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Apr 2009 12:47:47 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习学习了解中！ [s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#487153.html]]></link>
 <author><![CDATA[gaoren]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Apr 2009 03:58:24 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习中!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#486105.html]]></link>
 <author><![CDATA[孤心]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 11 Apr 2009 05:16:41 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[要搞至少搞步进定位。正反转。过时了。发脉波的。很容易搞呀。个步进马达驱动器发脉波，就会跑了。然后跑都得。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#484414.html]]></link>
 <author><![CDATA[libin520]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 09 Apr 2009 11:31:59 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习中!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#482982.html]]></link>
 <author><![CDATA[albbad]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 08 Apr 2009 06:46:15 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这个问题很简单,不论用什么PLC,只要用编码器A/B相的脉冲,利用PLC的高速计数器抓取,然后做运算比较,控制变频器正转,反转应该是比较容易的,这里就不复说.-------我也这么做]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#482945.html]]></link>
 <author><![CDATA[zhuhaifeng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 08 Apr 2009 06:17:02 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[这个问题很简单,不论用什么PLC,只要用编码器A/B相的脉冲,利用PLC的高速计数器抓取,然后做运算比较,控制变频器正转,反转应该是比较容易的,这里就不复说.--------QQ:896880238]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#452018.html]]></link>
 <author><![CDATA[ycy-xyy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Mar 2009 00:53:25 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[接两个续电器&nbsp;&nbsp;控制正流向&nbsp;&nbsp;和&nbsp;&nbsp;相对反流相

功能上控制一个动另一个断

PLC就给信号&nbsp;&nbsp;具体的我也不知道怎么讲&nbsp;&nbsp;我是最近才学电气方面的&nbsp;&nbsp;我们用的试验台是PLC控制的&nbsp;&nbsp;不过是DC小的马达]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-31511#445938.html]]></link>
 <author><![CDATA[ilikecool]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 02 Mar 2009 09:07:11 +0000]]></pubdate>
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