大型冷轧管机组的电气控制系统研制

Development of electric control system of the large cold pipe rolling mill

LG720冷轧管机组是世界最大规格冷轧管机组。为该机组研制的电气系统采用了PLC、变频调速、PROFIBUS-DP网络通讯、SIMOTION D、HMI等技术,实现了多机变频调速传动,对大惯量负载的送进和回转机构实现高动态响应、高精度定位和同步控制,满足了大型冷轧管机组的生产要求。

LG720 cold pipe rolling mill is the first large-scale cold pipe rolling mill in the world. The electric sys- tem applies PLC,variable frequency speed regulation （VFSR）,PROFIBUS-DP network,SIMOTION D and HMI technologies, which can realize the muti-motor VFSR drive, especially in large inertia load feed-in and rotation mechanism with high dynamic response, high precision positioning and synchronization control. This system fully meets the production requirements of the large-scale cold pipe rolling.