<?xml version="1.0" encoding="gbk"?>
<rss version="2.0">
<channel>
 <title><![CDATA[2.2KΩ2W电位器用在30KW变频器上,车速缩小 ..]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190.html]]></link>
 <description><![CDATA[Latest 50 replies of 2.2KΩ2W电位器用在30KW变频器上,车速缩小 ..]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
 <generator><![CDATA[www.ymmfa.com]]></generator>
 <lastBuildDate><![CDATA[Thu, 16 Apr 2026 21:33:05 +0000]]></lastBuildDate>
  <image>
 <url><![CDATA[images/rss.gif]]></url>
 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
  </image>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[无论何时自己都不要忘记基础知识.知识是指导你行动的准则.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#551880.html]]></link>
 <author><![CDATA[xjx0618]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 16 Jun 2009 07:07:34 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[变频器上的模拟信号电流一般只有20毫安，你用的电位器阻值太小，造成两端压降太大，到达不了所设置的频率的相对电压，用5K的试试。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#551802.html]]></link>
 <author><![CDATA[工控学子]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 16 Jun 2009 05:09:00 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[是电位器的电阻值太小了,这样就产生了太大的分压或分流.正解]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#550228.html]]></link>
 <author><![CDATA[albbad]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 14 Jun 2009 13:36:58 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用10K的，换成2.2K 会造成分压过低，如果再低的话，还会烧元器件。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#550109.html]]></link>
 <author><![CDATA[gqm]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 14 Jun 2009 11:32:23 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用10K的&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#549998.html]]></link>
 <author><![CDATA[dl2006]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 14 Jun 2009 09:17:20 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[是电位器的电阻值太小了,]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#520986.html]]></link>
 <author><![CDATA[mengyuboshi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 16 May 2009 15:17:09 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[这个10k电阻应该和另一个电阻串联，当你选择2.2k时，其分压变低了，自然速度上不去。
要么还用10k的，保证分压值；要么减小串联的电阻值，保证分压值。 [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#520358.html]]></link>
 <author><![CDATA[wsir123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 16 May 2009 03:08:47 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[电压5V，改成10V即可，我以前也遇到过]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#520114.html]]></link>
 <author><![CDATA[nmd2001j]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 15 May 2009 14:23:05 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[一般30KW的变频器用5K的电位器，如果有多圈的精密电位器效果会更好。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#518164.html]]></link>
 <author><![CDATA[wangli1268]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 13 May 2009 14:23:09 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用个进口的或好点的5K就行]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#515803.html]]></link>
 <author><![CDATA[xyd_hsn10]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 11 May 2009 07:11:49 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[是电位器的电阻值太小了,这样就产生了太大的分压或分流.我常用4.7K的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#515059.html]]></link>
 <author><![CDATA[李磊88]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 10 May 2009 11:24:58 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[这不为怪呀，你的电位器的阻值都不对呀。压降太大了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#508410.html]]></link>
 <author><![CDATA[xshflove]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 03 May 2009 13:21:24 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用10KΩ,10W的就好了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#482054.html]]></link>
 <author><![CDATA[dl2006]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 07 Apr 2009 08:46:58 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[是电位器的电阻值太小了,这样就产生了太大的分压或分流. 可以选4.7-10千欧的.[s:21]&nbsp;&nbsp;[s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#469047.html]]></link>
 <author><![CDATA[编程学习]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 25 Mar 2009 13:57:31 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[同意七楼的看法。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#468878.html]]></link>
 <author><![CDATA[雪花飘飘]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 25 Mar 2009 11:33:29 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[电压5V]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#468741.html]]></link>
 <author><![CDATA[aabbcc296]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 25 Mar 2009 10:13:39 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我以前对一个普通的交流电机220V的控制器做过改动，电位器的电阻越大，速度越快，但是得选一个功率大一点的，要不然就有可能把电位器烧了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#467739.html]]></link>
 <author><![CDATA[kingfeng1983]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 24 Mar 2009 09:02:59 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[那就换个大的试试]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#467734.html]]></link>
 <author><![CDATA[kingfeng1983]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 24 Mar 2009 09:00:05 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第8楼草原牧人于2009-03-23 18:39发表的&nbsp;&nbsp;:
是电位器的电阻值太小了,这样就产生了太大的分压或分流.[/quote]
正解]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#467650.html]]></link>
 <author><![CDATA[竹风凉]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 24 Mar 2009 08:10:20 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[是电位器的电阻值太小了,这样就产生了太大的分压或分流.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#466940.html]]></link>
 <author><![CDATA[草原牧人]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 23 Mar 2009 10:39:05 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[太小了!导致电位器两端电压下降,建议使用4.7K~10K的试一下. [s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#466880.html]]></link>
 <author><![CDATA[xinxuefeng12]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 23 Mar 2009 08:40:38 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[以前是10KΩ,调速不稳定,换上2.2KΩ的就车速缩小３５%]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#466866.html]]></link>
 <author><![CDATA[aabbcc296]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 23 Mar 2009 08:28:24 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[可能两个原因：1设置原因。输出最高频率对应的输入电压设置错误。2电位器接触不良，可以换一个电位器试试。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#466625.html]]></link>
 <author><![CDATA[liuxianhua]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 23 Mar 2009 05:13:22 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[以前用的是多大的？变频器调速输入是什么信号？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#466608.html]]></link>
 <author><![CDATA[zhengyueyong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 23 Mar 2009 05:01:03 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[本人说明白一点：2.2KΩ2W电位器用在30KW变频器上,车速缩小３５%
昨天2.2KΩ2W电位器用在30KW变频器上调速，电机拖动的装酒瓶机车速由２１０００瓶／h变为１３０００瓶／h，大侠们，为什么？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#466592.html]]></link>
 <author><![CDATA[aabbcc296]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 23 Mar 2009 04:46:23 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[不明不白！ [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#466571.html]]></link>
 <author><![CDATA[ljl5130]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 23 Mar 2009 04:07:55 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[电位器的值太大了呗~！ [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-33190#466563.html]]></link>
 <author><![CDATA[再见理想]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 23 Mar 2009 03:44:01 +0000]]></pubdate>
</item>
</channel></rss>