西门子参评说明6SE6430-2UD42-0GB0

6SE6430-2UD42-0GB0

6SE6430-2UD42-0GB0

与直流伺服电机相比，交流伺服电机具有以下几个优点：

更高的效率：由于交流伺服电机通常采用永磁同步电机，因此它具有更高的效率。

更大的输出功率：交流伺服电机通常可以提供更大的输出功率。

更高的转速范围：交流伺服电机通常具有更广泛的转速范围。

更小的电机尺寸：由于交流伺服电机的率，它通常可以采用更小的电机尺寸来实现相同的输出功率。

交流伺服电机也是无刷电机，分为同步和异步电机，目前运动控制中一般都用同步电机，它的功率范围大，可以做到很大的功率。大惯量，高转动速度低，且随着功率增大而快速降低。因而适合做低速平稳运行的应用。

3、伺服电机内部的转子是永磁铁，驱动器控制的U/V/W三相电形成电磁场，转子在此磁场的作用下转动，同时电机自带的编码器反馈信号给驱动器，驱动器根据反馈值与目标值进行比较，调整转子转动的角度。伺服电机的精度决定于编码器的精度（线数）。

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