摘要
系统采用西门子S7—200PLC作为控制器，设计了一种基于模糊自整定PID的SMT回流焊机温度的控制系统；S7～200接收热电偶，变频器信息的输入，与工程上位机进行数据通信，自动地实现了热风机、加热丝、冷风机和抽风机等设备的精密控制；该系统用于浩维Hw—RF8800C型再流焊机的生产线实际运行，温度设定在50～250℃之间，其加热区的恒温控制特性好，精度达到≤±2℃，自调整能力强，系统运行稳定，达到目前SMT加工领域对回流焊机的技术要求。
This system adopts the Siemens S7--200 PLC as controller, designed a SMT reflow welding machine based on fuzzy self--tun- ing PID temperature control system. S7--200 receive thermocouple, the inverter information input, PC for data communication with engi- neering, and automatically achieve the heat fan, heater, air cooler and extraction fan equipment such as precision control. The system use Haowei HW -- RF8800C reflow welding machine production line operation, high accuracy of temperature control system, the adjustment a- bility, the system runs stably to SMT technology requirements for reflow welding machine processing field.
出处
《计算机测量与控制》
北大核心
2014年第2期387-389,共3页
Computer Measurement &Control
基金
江苏省无线传感系统应用工程技术开发中心横向课题
