【摘要】 给出了PLC制动闸自动控制系统的结构 ,阐明了其工作原理和特点。系统根据电动机电枢电流来控制电动机的起停 ,其控制方案新颖 ,工作可靠 ,运行稳定。更多还原

【Abstract】 A novel automatic regulating system used for brake system based on PLC is presented in this paper Its principle and characteristics are stated in detail The electric motor of brake system is controlled according to the current through it,and various anti interference measures are taken to warrant its steadiness and reliability更多还原