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 <title><![CDATA[三菱FX PLC输入信号后不通，信号指示灯也 ..]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571.html]]></link>
 <description><![CDATA[Latest 50 replies of 三菱FX PLC输入信号后不通，信号指示灯也 ..]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <lastBuildDate><![CDATA[Fri, 10 Apr 2026 10:55:45 +0000]]></lastBuildDate>
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 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
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 <description><![CDATA[需要NPN的传感器，如果你的COM端接了的话！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#990221.html]]></link>
 <author><![CDATA[412931]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 Mar 2011 01:47:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[彻底检查传感器。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#990076.html]]></link>
 <author><![CDATA[郭怀海]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 12 Mar 2011 16:05:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[有可能传感器是假货]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#987537.html]]></link>
 <author><![CDATA[crgtom]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Mar 2011 10:08:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[三菱的FX&nbsp;&nbsp;1N系列PLC的COM一般接的是负极的，把信号线和COM短接就可以，后来接上去也可以应该是接触不好的原因，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#987032.html]]></link>
 <author><![CDATA[家和]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Mar 2011 15:10:16 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是不是极性接反了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#987007.html]]></link>
 <author><![CDATA[zhouyang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Mar 2011 14:33:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[？？？？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#986937.html]]></link>
 <author><![CDATA[g111111]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Mar 2011 13:24:37 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你真能确定传感器的负压信号到了001]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#984691.html]]></link>
 <author><![CDATA[372038137]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 Mar 2011 11:53:01 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[传感器是不是NPN的啊。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#984651.html]]></link>
 <author><![CDATA[yuanzhijun]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 Mar 2011 11:16:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[传感器为NPN型才可以,或公共线COM没有跟传感器负端接在一起.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#984445.html]]></link>
 <author><![CDATA[chen_0106]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 Mar 2011 05:30:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[把plc的付端连接外部传感器电源，这样才有回路。。。但不能用外部24v电源并plc24v电源，这样会烧坏plc。。。。我烧了一个，呵呵]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#984438.html]]></link>
 <author><![CDATA[刻骨铭心]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 Mar 2011 05:06:37 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[感应器的型号不对，或接线错误]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#974671.html]]></link>
 <author><![CDATA[zidonghua]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 20 Feb 2011 04:44:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[外围部件有问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#970457.html]]></link>
 <author><![CDATA[rj3383]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 Feb 2011 10:33:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[有可能是感应器本身有问题时好时坏，还有可能是接线错误，还有可能是接触不良，再有就是电压不稳定]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#970362.html]]></link>
 <author><![CDATA[huangyue]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 Feb 2011 07:10:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[应该是传感器的型号错了，COM没有接公共线]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#970358.html]]></link>
 <author><![CDATA[yizhong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 Feb 2011 07:04:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PLC有自我保护功能，接感应器的时候应该24V.与0V短接了.所以PLC上面电源指示灯都不会亮的.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#970279.html]]></link>
 <author><![CDATA[stephen123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 Feb 2011 03:15:33 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主也说了是三菱FX系列的，输入信号肯定是NPN型感应器（即漏型输入），据楼主描述，应该是感应器选错了。换成NPN型的就可以了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#970266.html]]></link>
 <author><![CDATA[yangh1129]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 Feb 2011 02:56:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[一开始信号输入PLC指示灯不亮，接回传感器PLC的输入指示灯就亮了，应该是原接触不良造成的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#970234.html]]></link>
 <author><![CDATA[xubaolin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 Feb 2011 01:15:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[接线错误]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#970149.html]]></link>
 <author><![CDATA[coverpaper]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 12 Feb 2011 13:16:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#970088.html]]></link>
 <author><![CDATA[周红军]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 12 Feb 2011 12:23:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[说不定你把他的输入特性弄反了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#969734.html]]></link>
 <author><![CDATA[gaiping]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 12 Feb 2011 02:25:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[com口和输入端是不是接反了呢？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#968488.html]]></link>
 <author><![CDATA[龙芯]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Feb 2011 08:37:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[NPN, PNP有关 [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#968485.html]]></link>
 <author><![CDATA[tk758]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Feb 2011 08:30:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[FX1N PLC要接公共线]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#968438.html]]></link>
 <author><![CDATA[wuliangfu]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Feb 2011 05:46:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[传感器型号问题，PNP与NPN型传感器其实就是利用三极管的饱和和截止，输出两种不同的状态，属于开关型传感器。但二者输出信号是截然相反的，即高电平和低电平。PNP输出是低电平0，NPN输出的是高电平1。一般常用的是NPN型，即高电平有效状态。PNP很少使用。
日本PLC（三菱、OMRON）一般采用负电平输入，接NPN型传感器，欧美 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#968374.html]]></link>
 <author><![CDATA[qwz0419]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Feb 2011 01:53:47 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[应该是接线没接好]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#967880.html]]></link>
 <author><![CDATA[xuguangzhen]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 Feb 2011 12:01:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[应该是传感器的型号错了，PLC上一般用NPN型传感器较多]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#967703.html]]></link>
 <author><![CDATA[lty504351]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 Feb 2011 01:57:59 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[不要是三线接了二线]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#960738.html]]></link>
 <author><![CDATA[supercat]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 20 Jan 2011 15:52:35 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果输入信号没有问题的话，可以考虑是PLC内部输入电路出了问题。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#959875.html]]></link>
 <author><![CDATA[平凡人生]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Jan 2011 12:33:24 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[多般是接线端子接触不良，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#959823.html]]></link>
 <author><![CDATA[zhangxh]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Jan 2011 11:59:50 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[顶第一个的回答 同时你自己也已经说了 。{（确认有信号）后来短接X001和COM后输入信号指示亮。}com端没有接好]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-94571#959794.html]]></link>
 <author><![CDATA[h999999999]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Jan 2011 11:14:30 +0000]]></pubdate>
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