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 <title><![CDATA[变频器遇到的问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272.html]]></link>
 <description><![CDATA[Latest 50 replies of 变频器遇到的问题]]></description>
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 <description><![CDATA[把变频器与PLC的连接线断开，查看变频器控制线路是否有问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1120423.html]]></link>
 <author><![CDATA[万钧彩]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 04 Sep 2011 23:26:50 +0000]]></pubdate>
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 <description><![CDATA[感觉是接线和参数设置问题，楼主仔细查一下吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1120399.html]]></link>
 <author><![CDATA[阮子]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 04 Sep 2011 15:36:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[修改参数…好像在Pr190还是多少…找一下]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1120101.html]]></link>
 <author><![CDATA[wanglong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 04 Sep 2011 02:20:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1118752.html]]></link>
 <author><![CDATA[hmq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 01 Sep 2011 11:24:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[电压问题，也是接线问题。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1118318.html]]></link>
 <author><![CDATA[saisam2006]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Aug 2011 13:51:05 +0000]]></pubdate>
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 <description><![CDATA[变频器的RUN信号是靠什么方式给定的呢？从这个方面下手查找，很容易找到故障，如果是通过485通讯接口给定的RUN信号就是程序的问题，如果是通过多功能输入端子给定的RUN信号，就很有可能是你的RUN信号给定线接到了中继的常闭点上了。把线调换到中继的常开点就好了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1118313.html]]></link>
 <author><![CDATA[胡骄阳]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Aug 2011 13:46:28 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[PLC端接线有错误]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1118287.html]]></link>
 <author><![CDATA[zxq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Aug 2011 13:17:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[变频器出厂初始化 重设参数试试]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1118283.html]]></link>
 <author><![CDATA[804759109]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Aug 2011 12:59:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[路过，学习。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1118234.html]]></link>
 <author><![CDATA[hjx]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Aug 2011 11:19:48 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[说的不是很祥细,查查RUN的控制点可能是常闭点,改常开就行]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1118220.html]]></link>
 <author><![CDATA[在肇兴]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Aug 2011 10:52:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你先从RUN信号从何而来查起]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1118209.html]]></link>
 <author><![CDATA[gali1120107]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 31 Aug 2011 10:27:11 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[p79&nbsp;&nbsp; 操作模式是否设定错误？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1117776.html]]></link>
 <author><![CDATA[dai]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Aug 2011 15:32:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[变频器的RUN信号起来了与PLC有关吗？没讲明白啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1117750.html]]></link>
 <author><![CDATA[hhg]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Aug 2011 14:53:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[同样的程序和同样的接线有一台设备会有这样的问题！另外一台就没有！我估计不是程序的问题！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1117428.html]]></link>
 <author><![CDATA[呆呆]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Aug 2011 06:24:14 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[变频器的RUN信号起来了！这个问题可能的原因是PLC控制变频器的逻辑接点采用的是“B”接点。PLC电源关闭后输出将被禁止，不存在输出。这时，变频器有启动命令，只能说明控制逻辑采用的是常闭接点。将该段程序逻辑取反，同时将控制接点改为常开接点。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1117413.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Aug 2011 06:02:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[看看经过PLC到变频器的电压信号。和变频器的参数设置。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1117393.html]]></link>
 <author><![CDATA[qiujingsong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Aug 2011 05:19:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我可以肯定的是，不是扩展单元的问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1117382.html]]></link>
 <author><![CDATA[呆呆]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Aug 2011 04:37:11 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[扩展单元有问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-118272#1117366.html]]></link>
 <author><![CDATA[ybcc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 30 Aug 2011 03:56:51 +0000]]></pubdate>
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