Transactions of Materials and Heat Treatment

Title：Research on PLC S7-200 control system of electrical screw press

Authors： LI Jun-chao FENG Yi HUANG Shu-huai (State Key Laboratory of Plastic Forming and Die and Mould Technology Huazhong University of Science and Technology Wuhan 430074 China)

Unit：

KeyWords： electrical screw press programmable logical controller direct torque control

ClassificationCode：TG305

year,vol(issue):pagenumber：2008,33(3):112-117

Abstract：

The key technique for the stable operation of electrical screw press is to controll the motor temperature rising and improve the system's stability.The control system based on programmable logical controller S7-200 was designed.The hardware and the software architecture of the control system were analyzed.The driving mode with KEB inverter and servo motor and the application of direct torque control were applied.Position error reached to ±2 mm.The tolerance of energy was no more than 3% and the temperature of the motor was less than 85 ℃ in long time working service.

Funds：

湖北省科技厅工程技术中心建设项目(2004AA101E04);; 武汉市科技计划项目(20061002077)

Reference：

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