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 <title><![CDATA[plc数字输出点被击穿、烧坏的主要原因是什 ..]]></title>
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 <description><![CDATA[本人遇到的99%都是负载故障短路造成的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461207#1590027.html]]></link>
 <author><![CDATA[fsjnzhy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Jul 2014 02:51:53 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[接点太近，外壳没有接地，直接驱动均属不合格，应串接触器。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461207#1589994.html]]></link>
 <author><![CDATA[xiaogan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Jul 2014 01:02:37 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[设汁时偷工检料，没加保护]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461207#1587570.html]]></link>
 <author><![CDATA[咯啵白菜]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 19 Jul 2014 23:21:02 +0000]]></pubdate>
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 <description><![CDATA[触点疲劳了&nbsp;&nbsp;用中间继电器隔离]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461207#1587563.html]]></link>
 <author><![CDATA[jackal]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 19 Jul 2014 16:08:26 +0000]]></pubdate>
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 <description><![CDATA[PLC晶体管输出型内的晶体管击穿、烧坏的原因有很多，一般不外乎有以下几种。&nbsp;&nbsp; 1、负载的功率超过PLC的带载能力&nbsp;&nbsp; 2、负载端短路&nbsp;&nbsp; 3、工作电源超压&nbsp;&nbsp;&nbsp;&nbsp; 4、晶体管本身的质量&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5、环境恶劣影响&nbsp;&nbsp;&nbsp;&nbsp; 6、所带的负 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461207#1587497.html]]></link>
 <author><![CDATA[xjynzlp]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 19 Jul 2014 12:26:44 +0000]]></pubdate>
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 <description><![CDATA[和PLC的输出类型（晶体管或继电器）以及接的负载有关系。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461207#1587467.html]]></link>
 <author><![CDATA[matengfei]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 19 Jul 2014 10:26:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[过压，过流，产品缺陷。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461207#1587458.html]]></link>
 <author><![CDATA[guochunyi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 19 Jul 2014 09:32:57 +0000]]></pubdate>
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