Motor drive controller with delay protection

Abstract

The invention discloses a motor drive controller with delay protection. The motor drive controller with the delay protection comprises a control unit, a given direction signal transmitting circuit, an enable signal transmitting circuit and a speed given signal transmitting circuit, wherein the control unit is used for transmitting an operation command to a motor, and controlling operation direction and speed of the motor. The given direction signal transmitting circuit is used for transmitting an operation direction signal of the motor to the control unit. The enabling signal transmitting circuit is used for transmitting an enabling signal to the control unit. The speed given signal transmitting circuit is used for transmitting a speed given signal to the control unit, and the control unit controls operation speed of the motor. The motor drive controller with the delay protection is characterized in that the given direction signal transmitting circuit is composed of a delay unit, when the delay unit switches the given signal, the delay unit temporarily cuts off the enabling signal transmitting circuit or the speed given signal transmitting circuit for a while, and then opens the enabling signal transmitting circuit or the speed given signal transmitting circuit. The motor drive controller with the delay protection is simple in circuit structure, reliable in work, and timely in system response, allows a system to automatically detect after inputting an opposite rotation signal, and conducts automatic delay.

Description

technical field [0001] The invention relates to a motor drive controller with time delay protection. Background technique [0002] The permanent magnet brushless motor replaces the mechanical commutator with an electronic commutator, which has a simpler structure, convenient maintenance, excellent starting performance and speed regulation performance, high power density, and small size, so the permanent magnet brushless motor is used in mechatronics and The application range of the rotating system is increasing continuously, and the research on its control technology is also continuously improving, and the commutation problem involved in the high-speed operation process is also a very important problem. Nowadays, many drives use the method of first stopping the motor when reversing, and then switching to the opposite direction, which is very troublesome and causes great inconvenience when using it. [0003] However, the technology on which this principled structure relies h...

AI Technical Summary

Problems solved by technology

[0004] 1. Artificially participating in the forward and reverse switching of the motor is not up to the requirement when it needs to be completed quickly, resulting in an unacceptable increase in the response time of the system

[0005] 2. If the motor is directly reversed by mistake, it will damage the motor driver and even damage the motor

[0006] 3. It is not convenient for the system to expand the application

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