盐城步进电机RM29B2D乐滋产品

盐城步进电机rm29b2d乐滋产品

盐城步进电机rm29b2d乐滋产品

盐城步进电机rm29b2d乐滋产品

折叠主要特点

1．一般步进电机的精度误差为步距角的3-5%，且不累积。

2．步进电机外表允许的高温度。

步进电机温度过高首先会使电机的磁性材料退磁，从而导致力矩下降乃至于失步，因此电机外表允许的高温度应取决于不同电机磁性材料的退磁点；一般来讲，磁性材料的退磁点都在摄氏130度以上，有的甚至高达摄氏200度以上，所以步进电机外表温度在摄氏80-90度完全正常。

3．步进电机的力矩会随转速的升高而下降。

当步进电机转动时，电机各相绕组的电感将形成一个反向电动势；频率越高，反向电动势越大。在它的作用下，电机随频率（或速度）的增大而相电流减小，从而导致力矩下降。

4．步进电机低速时可以正常运转,但若高于一定速度就无法启动,并伴有啸叫声。

步进电机有一个技术参数：空载启动频率，即步进电机在空载情况下能够正常启动的脉冲频率，如果脉冲频率高于该值，电机不能正常启动，可能发生丢步或堵转。在有负载的情况下，启动频率应更低。如果要使电机达到高速转动，脉冲频率应该有加速过程，即启动频率较低，然后按一定加速度升到所希望的高频（电机转速从低速升到高速）。

步进电动机以其显著的特点，在数字化制造时代发挥着重大的用途。伴随着不同的数字化技术的发展以及步进电机本身技术的提高，步进电机将会在更多的领域得到应用。

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