IC641SWP053/////IC641SWP053

IC641SWP053

IC641SWP053

IC641SWP053

IC641SWP053

细纱机罗定电机及速度控制系统，有下面这几种方式：

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【品牌】Allen-Bradley罗克韦尔、ABB、本特利Bently 3500系统卡件、GE、艾默生西屋等模块卡件

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2.1.多极电机+工频电源继电器控制：通过改变电机极数来实现工艺速度的调整，调速范围窄、无法满足工艺提高的要求，并且系统维护工作量比较大。

2.2.交流异步电机+变频器：通过变频调速，调速比较方便，调速范围宽，但异步电动机存在一定转差，罗拉的速度会有一定的波动、速度响应也稍慢一些。再有普通异步电动机的效率和功率因数也不是太高，存在一定的功率损耗。

2.3.永磁同步电机+永磁专用变频器：通过变频调速，调速方便，调速范围比较宽，永磁电机的效率比较高、功率因数高、速度稳定，无功损耗比较低。

相比之下第三种传动系统用于细纱机效果，生产效率高、又节能，但是，相对设备投入较高，因此，大多纺织企业采用第二种交流异步电机+变频器的控制方案。

三、细纱机变频器设计要求及特点

3.1.由于纺织现场环境差棉絮较多，变频器在使用过程中会出现风扇被棉絮堵塞的现象，造成风扇损坏而导致变频器过热等故障发生。普传科技结合细纱机现场的情况，基于PI500系列高性能矢量变频器的基础上，研制开发了一款PI500 XXXG3N系列变频器，这款变频器无散热风扇，靠现场风道提供的风来散热，。该产品经过现场验证温升符合设计标准，运行效果满足客户需求。

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