Driver for synchronous control of multiple motors

Abstract

The invention discloses a driver for synchronous control of multiple motors, which aims to provide a driver for synchronous control of the multiple motors which can effectively reduce the weight and the size of the motor driver and can simultaneously or separately control steering and speed of multiple DC motors without programming. The invention is realized by the following technical solution: aCPU circuit board provides four working mode selections of an analog input mode, an R / C input mode, a simple serial port mode and a packet serial port mode for a driving circuit board; an analog quantity acquisition module in the CPU circuit board acquires the motor position, the current and the rotation speed information of the drive circuit board through a motor control interface module. A complex programmable logic device CPLD performs logic transformation on various input / output discrete quantities. A DSP module and a CPLD interface acquire / transmit logic signals, analyze and process RS422communication module in an RS422 communication module, control the motor control circuit to operate, and output control information to the drive circuit board to control the motor to operate according to predetermined parameters.

Description

technical field [0001] The invention relates to a motor driver that can meet the requirements of a multi-motor system architecture, and has the functions of speed, current and direction control, so that it is suitable for multi-motor applications, especially where the weight and volume of the system are limited. Background technique [0002] Synchronous control is a common control method in industrial control. In engineering applications, it is usually necessary to use several motors to drive at the same time. The speed of several motors is required to be synchronized to ensure the normal operation of the transmission chain. Otherwise, the chain will accumulate or break, making the system doesn't work well. In the case of multiple motors / multiple soft starters, it usually happens that one motor (and soft starter) will bear more load than the other motors (and soft starters) during starting, and in severe cases only one of them Part of the motor rotates, and the rest of the ...

AI Technical Summary

Problems solved by technology

If the traditional multiple drive circuit board scheme is used, the volume and weight of the entire system will increase, which cannot meet the needs of this type of system. A more portable and flexible controller that can integrate multi-motor drives needs to be invented urgently

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