双向启动反接制动控制线路的PLC程序设计

PLC Programm for Bidirectional Start-up Reverse Braking Control Circuit

双向启动反接制动控制线路在电力拖动控系统中具有重要作用,双向启动反接制动控制线路复杂。分析PLC改造,有效克服传统机电控制模式的系统响应时间长、可靠性差的局限性。

Bidirectional start-up reverse braking control circuit plays an important role in electric drive control system.Bidirectional start-up reverse braking control circuit is complex.This paper analyses the transformation of PLC to overcome the limitations of long response time and poor reliability of traditional electromechanical control system.