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 <title><![CDATA[两台电机速度要求匹配]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1372456.html]]></link>
 <description><![CDATA[Latest 50 replies of 两台电机速度要求匹配]]></description>
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 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果可以的话在两电机之间加一外张力传感器。由被卷取的物体产生的张力大小来决定从动电机的第二频率，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1372456#1274837.html]]></link>
 <author><![CDATA[tengdewu]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 25 May 2012 14:22:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主能不能把你原来用西门子控制直流电机的相关资料发给我做毕业设计用。基于S7-200PLC的直流电机控制，谢谢！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1372456#1270229.html]]></link>
 <author><![CDATA[文杰]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 19 May 2012 12:14:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[俺是菜鸟&nbsp;&nbsp;俺也学习咯&nbsp;&nbsp;感谢楼主的提问&nbsp;&nbsp;感谢大家的回答&nbsp;&nbsp;]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1372456#1252066.html]]></link>
 <author><![CDATA[z45651100]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 21 Apr 2012 13:26:50 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主加我QQ:1037570404，咱们探讨一下。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1372456#1249923.html]]></link>
 <author><![CDATA[spjc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 18 Apr 2012 07:37:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不用PLC只用变频器完成速度完全匹配不太容易，如果真的需要这么做，建议楼主选用Danfoss的FC302变频器+MCO305可编程运动控制卡，在电机上安装旋转编码器，控制程序写在运控卡里。[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1372456#1249360.html]]></link>
 <author><![CDATA[回忆依然最美]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 17 Apr 2012 13:36:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[有没有人对这方面比较有印象的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1372456#1249124.html]]></link>
 <author><![CDATA[ouyang308]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 17 Apr 2012 08:53:15 +0000]]></pubdate>
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