Alternating-current servo motor controller adopting USB interface to communicate with PC upper computer and control method

Abstract

The invention discloses an alternating-current servo motor controller adopting a USB interface to communicate with a PC upper computer. The alternating-current servo motor controller comprises a controller core circuit board and a controller signal transmission circuit board. The controller core circuit board comprises a USB to USART module, an STM32 core control module and a power supply voltagereduction module. A communication input / output interface of the controller is the USB interface and is directly connected with a USB interface of the PC upper computer. In application of short-distance alternating-current servo motor control, a fixed desktop computer is not limited to be used as a PC upper computer; a mobile notebook computer can also be selected as a PC upper computer; the powersupply of the AC servo motor controller is required to be a 5V power supply, and the 5V power supply with the USB interface is adopted to supply power to the AC servo motor controller adopting the USBinterface to communicate with the PC upper computer, so that the occupied space and the economic cost of the external 5V power supply can be saved.

Description

technical field [0001] The invention belongs to the field of industrial automation equipment control. Background technique [0002] AC servo motor is generally composed of three parts, which are motor, encoder and motor servo unit. Due to its high positioning accuracy, fast response speed, large starting torque and strong overload capacity, it has been widely used in industrial production in recent years. For short-distance motor control applications where the PC is used as the host computer to communicate with the AC servo motor controller, the traditional communication method is to use the RS232 interface to connect the PC host computer and the motor controller, but the RS232 interface currently only exists on desktop computers, and many notebooks The computer removes the RS232 interface, which makes it possible for only a desktop computer to communicate with the AC servo motor controller as a PC host computer. However, when a mobile notebook computer is used as a PC host ...

AI Technical Summary

Problems solved by technology

[0002] AC servo motor is generally composed of three parts, which are motor, encoder and motor servo unit. Due to its high positioning accuracy, fast response speed, large starting torque and strong overload capacity, it has been widely used in industrial production in recent years. For short-distance motor control applications where the PC is used as the host computer to communicate with the AC servo motor controller, the traditional communication method is to use the RS232 interface to connect the PC host computer and the motor controller, but the RS232 interface currently only exists on desktop computers, and many notebooks The computer removes the RS232 interface, which makes it possible for only a desktop computer to communicate with the AC servo motor controller as a PC host computer. However, when a mobile notebook computer is used as a PC host computer, the controller cannot directly communicate with the PC host computer. connection for communication, so it is very inconvenient

[0003] When using a mobile notebook as a PC host computer to communicate with the AC servo motor controller, the RS232 interface cannot be used for communication directly. A USB to RS232 device must be added to communicate with the AC servo motor. First, connect the notebook USB through the USB to RS232 device. port, then connect the USB to RS232 device to the RS232 interface of the controller, and finally convert the RS232 signal to the USART signal at the controller end and send it to the control chip. increasing the failure rate

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