基于S7-200 PLC液体电阻起动控制器的设计  

Design of Liquid Resistance Starting Controller Based on S7-200 PLC

作　　者：赵斌[1] 杨捷[1] 

机构地区：[1]河南机电高等专科学校,河南新乡453002

出　　处：《煤炭技术》2011年第8期74-75,共2页Coal Technology

摘　　要：大中型绕线式异步电动机串液体电阻的起动,可减小起动电流,实现电机无冲击的平滑起动。传统的液体电阻起动器采用继电器控制,故障率高。文中采用西门子公司的S7-226 PLC进行控制,系统稳定性好,准确度高,满足控制要求。Large and medium-sized wound-rotor asynchronous motor string liquid resistance of starter,can reduce starting current,the smooth start of motors without impact is realized.The traditional liquid resistance starter uses relay control,with high failure rate.In the paper,siemens S7-226 of PLC control system is adopted.The system has good stability,high accuracy,meets the control requirements.

关 键 词：PLC 绕线式电动机 液体电阻 

分 类 号：TM573[电气工程—电器]