PLC电机转速测量系统设计与实现  

Design and realization of PLC motor speed measurement system

作　　者：孙晓明[1] 吴震[1] 宋宝宁[1] 

机构地区：[1]江阴职业技术学院电子信息工程系,江苏江阴214405

出　　处：《工业仪表与自动化装置》2015年第1期25-26,共2页Industrial Instrumentation & Automation

基　　金：江苏省高等学校大学生实践创新训练计划项目(201413137001Y)

摘　　要：针对工业控制领域电机转速测量问题,设计了一种通用测量系统。该系统采用光电编码器作为电机转速的脉冲产生装置,利用西门子S7-200 PLC的高速计数器采集光电编码器产生的脉冲信号,根据M法测速方式,由PLC实时计算电机转速。测试表明,该通用测速系统快速可靠准确,可用于工业控制领域电机转速测量。For the measurement of motor speed of industrial control field,a universal measurement system was designed. The system adopted photoelectric encoder as pulse generator of motor speed,pulse signals generated by the photoelectric encoder were acquired by high speed counter of SIEMENS S7- 200 PLC. According to the measurement method of M,the real- time motor speed was calculated by PLC.Tests showed that the universal measurement system was fast and reliable and accurate,it could be used for the measurement of motor speed of industrial control field.

关 键 词：电机 可编程逻辑控制器 转速 光电编码器 

分 类 号：TM306[电气工程—电机]