CJ1W-ID211

CJ1W-ID211

當輸入脈沖頻率很低時，脈沖周期如大于步進電動機的過渡過程時間，步進電動機就會處于一步一停的運行狀態，這種運行狀態稱為步進運行。步進電動機都有一較低的固有頻率，當步進運行頻率或低速運行頻率與該固有頻率相等或接近時，就會產生共振，使步進電動機振蕩不前，這種現象稱為低頻振蕩。

避免低頻振蕩的現象發生采用的方法：

一種是使運行頻率避開固有頻率，二是前一方法不允許時，可通過調節步進電動機上的阻尼器來改變固有頻率。

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