摘  要：为了解决传统捻线机机构复杂的缺点，提出了一种基于PLC的捻线机多电机控制系统。系统采用异步电机和伺服电机传动；纱线加捻和卷绕运动由RS-485变频通讯实现，往复导纱运动由伺服机构传动实现。详细论述了控制系统的硬件设计和软件设计。系统简化了捻线机传动结构，控制可靠，使用方便。
关键词： PLC；捻线机；异步电动机；伺服电动机；实验

Abstract: In order to solve the disadvantage of the complexity on the conventional twister,put forward a controlling system in twister based on PLC which was droved by two asynchronous motors and two servo motors.The moving of twisting and winding had been realized through adopting RS-485 frequency communication technology and servo motors had droved to-and-froguiding-yarn moving.The hardware and software were realized.The result showed that this controlling was dependable and the driving was accurate.
Key Words: PLC;Twister;Asynchronous motor;Servo motor;Experiment