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      <description><![CDATA[ 摘 要  
    本文以超级压光机为例，通过引入TD3300系列变频器，介绍了变频矢量控制中张力开环的基本方式和TD3300调试步骤。 

    1 前言 
    超级压光纸简称SC纸，以 ]]></description>
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      <description><![CDATA[ RMS1 人民软启动维修
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2. 最大I/O点数：236点
3. 程序容量：8K Steps
4. 通讯端口：内置RS-232与RS-485，兼容MODBUS ASCII / RTU通讯协议。
5. 高速脉冲输出：支持 ]]></description>
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1: VVVF ?? 改变电压、改变频率 ]]></description>
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运行中过流
负载发生突变
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减速中过流
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