焊丝用高速层绕机的电气控制

摘要

High speed layer winder for welding wire is made up take-up,pay-off,loop tension device and electric control system.To introduce functions and requirement of every sections,analyze welding wire coil diameter change in layer winding,the control system with coil diameter calculating and loop PID adjusting function was designed.The system takes S7-226PLC as core,and deploy PWS-5600 touch screen ; the take-up and pay-off were driven by motor with MD320 frequency converter control; adopting MODBUS protocol to data exchange.The every functions realizing courses are expounded,the diagrams of system consisting,initialization communication program and frequency converter parameters setting are given.The control system can make layer winder start and stop quickly,stable running,layer winding speed is up to 20 m/s,output in one shift is over 2 tons.%焊丝用高速层绕机由收线机、放线机、活套张力装置及电控部分组成,介绍各部分功能和要求,分析焊丝层绕过程中卷径的变化,设计出具有卷径计算和活套PID调节功能的控制系统.该系统以S7-226PLC为核心,并配置PWS-5600触摸屏；收线机、放线机均由MD320变频器控制的电动机驱动；采用MODBUS协议进行数据交换.详述各个功能的实现过程,并就系统组成、初始化通讯程序、变频器参数设定给出具体图表.该控制系统可使层绕机快速启停,平稳运行,层绕速度最高可达20 m/s,每班产量超过2t.