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 <title><![CDATA[螺杆式空压机改成PLC 变频控制怎么改]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413245.html]]></link>
 <description><![CDATA[Latest 50 replies of 螺杆式空压机改成PLC 变频控制怎么改]]></description>
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 <description><![CDATA[成本太高了，大功率的变频器要上万的，在加上PLC ,模拟量模块
人工成本，估计要7.8万]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413245#1378409.html]]></link>
 <author><![CDATA[mlqwain]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 16 Nov 2012 00:55:05 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[两台做主从控制，如何切换，另外还空压机温度信号怎么采集（是标准电信号吗）]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413245#1377963.html]]></link>
 <author><![CDATA[tangyq]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 15 Nov 2012 01:56:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[变频器支持PID功能，直接通过压力传感器来接到变频器就好了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413245#1377581.html]]></link>
 <author><![CDATA[夏日雪梦]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 14 Nov 2012 06:11:39 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[1楼说得对，设备本身应该有这样的功能。如果要改的话，需要压力传感器，模拟量模块，变频器，PLC，再根据你的现场用气量变化调节，编程。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413245#1377465.html]]></link>
 <author><![CDATA[manhuazheng]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 14 Nov 2012 02:52:21 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[空压机里面本身就有PLC或者单片机控制，您的机器里面有流量控制么》？尝试调节一下。或者求助厂家]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413245#1377341.html]]></link>
 <author><![CDATA[catfree]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 14 Nov 2012 00:42:46 +0000]]></pubdate>
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