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 <title><![CDATA[PLC与变频器如何控制电机正反转,另外带加 ..]]></title>
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 <description><![CDATA[变频器用设置成外部端子控制，PLC控制变频器的高，低速， ，变频器设置好高，低速的频率， 当碰到慢速时，PLC 就控制变频器低速运行，这个不难，比较简单的，我们经常用，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1422711#1423002.html]]></link>
 <author><![CDATA[zhtzht20]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sun, 24 Mar 2013 08:55:59 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[六楼说的对]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1422711#1422966.html]]></link>
 <author><![CDATA[liu111]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sun, 24 Mar 2013 06:57:39 +0000]]></pubdate>
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 <description><![CDATA[用PLC输出控制变频器的的控制端子不就可以，简单的很，还可以通过485通讯，那要点技术哦！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1422711#1422954.html]]></link>
 <author><![CDATA[luowei00289]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sun, 24 Mar 2013 05:44:20 +0000]]></pubdate>
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 <description><![CDATA[同求！！ [s:39]&nbsp;&nbsp;[s:39]&nbsp;&nbsp;[s:39] ，要是有给我也发一份]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1422711#1422886.html]]></link>
 <author><![CDATA[tengfei1528]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sun, 24 Mar 2013 02:29:43 +0000]]></pubdate>
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 <description><![CDATA[变频器增加IO控制卡，用BCD码控制变频器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1422711#1422827.html]]></link>
 <author><![CDATA[gps1205]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sun, 24 Mar 2013 00:35:06 +0000]]></pubdate>
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 <link><![CDATA[http://www.ymmfa.com/read-gktid-1422711#1422780.html]]></link>
 <author><![CDATA[yangtao02060]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sat, 23 Mar 2013 14:36:24 +0000]]></pubdate>
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