IC697ACC804
IC697ACC804
IC697ACC804
柔和快速的飞车启动功能
HD92系列高压变频器具备飞车启动功能，能够在未知电机旋转速度的状况下启动变频器，变频器自动进行频率搜索，直至搜索到与电机实时旋转频率相符的频率，此时变频器输出相应频率，并控制电机旋转至频率，此技术能有效减少瞬间停电对挤出机生产的影响以及对电网的冲击，避免了胶料因意外停机凝固在螺杆中的情况。现场调测时的波形图如下。
图7：飞车启动波形图
IC697ACC804
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