MPL-B880D-SJ72AA

MPL-B880D-SJ72AA

当输入脉冲频率与电机的固有频率匹配时，电机会出现更剧烈的振动。这称为共振，通常发生在 200Hz 左右。在共振中，过冲和下冲变得更大，漏步的机会也更高。共振随负载惯性而变化，但通常在200Hz左右。

两相步进电机只能以四组为一组进行失步。如果您了四的倍数的步数，则振动会导致失去同步性，或者负载太大。如果的步骤不是四的倍数，则很可能是错误的脉冲数或电噪声导致了问题。

有多种方法可以避免共振。简单的方法是完全避免这种速度。对于 60 rpm 的两相电机，200 Hz 并不是非常快。大多数电机的大启动速度约为 1000 pps 左右。所以在大多数情况下，您可以以高于谐振速度的速度启动电机。如果您以低于共振速度的速度启动，请快速加速通过共振范围。

另一种解决方案是使步距角更小。对于更大的步距角，电机总是会过冲和下冲更多。如果电机不需要走很远，它就不会产生足够的力（扭矩）来过冲。只要步距角变小，电机就不会振动那么大。这就是半步和微步系统在减少振动方面如此有效的原因。

确保电机的尺寸适合负载。通过选择合适的电机，您可以提。

阻尼器也可用。阻尼器安装在电机的后轴上并吸收一些振动能量。他们通常会廉价地平滑振动电机。

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