The Design of Intelligent Valve Opening Controller Based on C8051F330

摘要

This paper describes a intelligent design valve opening controller using SOC SCM C8051F330 as the control core. The intelligent valve opening controller can receive 4-20mA DC control signals outputting from industrial instruments or computer and the feedback signals from the electric-house valve position directly, comparing the two sets of the signal data after A/D conversion, driving the motor in the direction of eliminating bias, the motor stop turning to the location of the valve the input control signals corresponded, thus achieving the automatic position control to the valve; while the valve position feedback signals are transformed to 4- 20mA DC signal feedback output. compared to the traditional electric sector, the controller has inspect, control precision adjustment and other functions, and has small size, light weight, high performance, reliable and easy to operate, and can be widely used in the power, petrochemical, metallurgical and other. industries.