Profibus filed bus type electric actuating mechanism controller

Abstract

The invention discloses a profibus filed bus type electric actuating mechanism controller. The controller comprises: a power supply conversion unit, which is used for conversion between an external alternating current power supply and a system power supply; a power supply management unit, which is used for switching of power supply modes and charging management of a backup battery; a signal processing unit, which is used for collection and output of information; a power control unit, which uses a three-phase motor positive and reverse rotation controller as a main part and is used for drivingthe mechanism to make motions; a central processing unit, which is connected with the power supply conversion unit, a power management unit, a signal processing unit, and a power processing unit and is used for managing various control signals; a redundant Profibus communication interface, which is used for make communication with an upper-level monitoring system; a serial port and a port; besides, the serial port and the port are used for uploading and downloading of debugging information. According to the invention, the above-mentioned design scheme enables reliability and availability of an electric actuating mechanism based on a Profibus bus protocol to be substantially improved.

Description

technical field [0001] The electric actuator can be widely used in the automatic adjustment of the production process in metallurgy, petroleum, power station, chemical industry, light textile and other industrial sectors. The invention belongs to the technical field of industrial control network, in particular to a field bus type digital electric actuator. Background technique [0002] The electric actuator is one of the three main instruments in the field of automation, and is widely used in the automatic adjustment of the production process in the electric power, metallurgy, petrochemical and other industries. With the application of field bus and industrial Ethernet in the field of industrial control, networking, bus and intelligence have become the development trend of automation instruments represented by electric actuators. The controller of the electric actuator is the core component of the electric actuator, and completes various control functions of the electric ac...

AI Technical Summary

Problems solved by technology

[0006] 2) Insufficient consideration of backup battery and management circuit;

[0007] 3) To upload and download debugging information through the serial port, there are certain requirements for the interface and connection line of the debugging terminal, and the convenience is poor

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