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西门子6ES7334-0CE01-0AA0
- 更新时间:2025-04-02
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6ES7334-0CE01-0AA0
调速范围,浅显说就是指能确保“额外运转情况”下允许频率范围。
一般电机运转速度总有一个上限,所以这个调速范围更多是着重低频特性。
比方一台电机依照50Hz规划,如果控制器可以确保0.05Hz都满转矩,那么可以说调速范围是1:1000了。但一般选用V/f控制的变频器,虽然可以运转在0.05Hz,但力矩很差了。所以也就达不到1:1000这么宽的调速范围。频率范围:即变频器输出的高频率和低频率。各种变频器规则的范围不尽一致。一般,作业频率约为0.1至1Hz;高作业频率约为200至500Hz。
以上是指变频器的额外作业频率。但实践作业中变频器大的输出频率是不可能大于电源的工频频率的。也就是说,可根据电动机铭牌上的额外频率,就可知道电动机的变频范围应是0Hz至(工频)Hz。变频电机的变频范围是非常大的,但实践运用中的大频率一般不大于工频。
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