摘要
本文简要分析了电厂冷却水泵电动机传统控制电路存在的缺陷 ,提出了采用西门子超小型可编程控制器LOGO !2 30RL进行改造的方案 。
In this paper,the defects of traditional control circuit of cooling-water pumps in power plant are briefly analyzed,and the design scheme with application of LOGO!230RL which is a mini PLC of SIEMENS is presented,and the principle of function block diagram of the control circuit is also analyzed in detail.
出处
《机床电器》
2003年第4期29-30,36,共3页
Machine Tool Electric Apparatus
