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 <description><![CDATA[Latest 50 replies of PLC程序中控制伺服电机]]></description>
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 <description><![CDATA[正常晶体管输出脉冲频率不能超过10K,差动不能超过50K,所以假设以10K为上限，达到1分3000转就需要1秒50转，也就是10K个脉冲50转，一转200脉冲，电子齿轮比是131072/200]]></description>
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 <author><![CDATA[章发东]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 12 May 2016 12:57:50 +0000]]></pubdate>
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 <description><![CDATA[前几天我发了个帖子，你找一下]]></description>
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 <author><![CDATA[rongbing]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 12 May 2016 12:56:13 +0000]]></pubdate>
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