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A Synchronous Control System of Servo Drive

A technology of servo drive and synchronous control, which is applied in the field of servo drive synchronous control and servo motor, can solve the problems that the servo drive cannot be synchronized, the system loses synchronous control, etc., and achieves the effect of simple method, stable and reliable synchronization

Active Publication Date: 2020-06-19
清能德创电气技术(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However in figure 1 In the shown multi-axis servo drive system based on industrial Ethernet, if a node in the network has a communication failure, the servo drives after the failed node will not be able to synchronize, especially if the node where the communication failure occurs is the master station or At the time of the first slave, the whole system will lose synchronous control

Method used

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  • A Synchronous Control System of Servo Drive
  • A Synchronous Control System of Servo Drive
  • A Synchronous Control System of Servo Drive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: figure 2 Shown is a composition block diagram of a servo driver of the present invention. It can be seen that the servo driver is composed of an industrial Ethernet protocol processing module, a synchronous control module and a servo driver main control module.

[0022] The industrial Ethernet protocol processing module connects the upper and lower nodes in the network, and performs protocol analysis on the industrial Ethernet data frame, and at the same time generates a synchronization signal SYNC0 and transmits it to the synchronization control module.

[0023] The synchronous control module has two signal input interfaces, namely interface IN1 and interface IN2. Among them, IN1 is connected to the external synchronous input signal of the driver, and IN2 is connected to the synchronous signal SYNC0 output by the industrial Ethernet protocol processing module. The output interface of the synchronous control module is OUT, and its output signal SYNCEVT is ...

Embodiment 2

[0027] Example 2: image 3 It is a composition block diagram of a servo drive synchronous control system, wherein the servo drive synchronous control system is composed of a host controller and n servo drives, and the internal structures of servo drive 1-servo drive n are all described in Embodiment 1 The internal structure of the servo drive, in which the industrial Ethernet protocol processing modules of n servo drives from servo drive 1 to servo drive n are connected to each other, and the industrial Ethernet protocol processing module of servo drive 1 is connected to the host controller, and servo drive 1 The interface IN1 of the synchronous control module of the servo drive 2 is connected to the external synchronous input signal, and the signal SYNCEVT output by the synchronous control module of the servo drive 1 is connected to the interface IN1 of the synchronous control module of the servo drive 2, and the signal output by the synchronous control module of the servo dri...

Embodiment 3

[0028] Embodiment 3: The system configuration is basically the same as that of Embodiment 2, except that the signal SYNCEVT output by the synchronous control module of servo drive n is connected to the interface IN1 of the synchronous control module of servo drive 1 .

[0029] It should be pointed out that the signal SYNCEVT output by the synchronous control module of the servo drive j can be connected to the interface IN1 of the synchronous control module of the servo drive j+k in the manner required by those skilled in the art across the k-1 way, when j When the value of +k is greater than n, the loop calculation is continued from servo driver 1.

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Abstract

The invention aims at providing a synchronous control system for a servo server, and the system is provided with an upper controller and n servo drivers, wherein the n servo drivers are in series connection, and each server also receives an external synchronous input signal or synchronous input signals provided by other servo drivers while analyzing a synchronous signal through an industrial Ethernet protocol processing module, thereby guaranteeing the synchronization of the plurality of servo drivers, and achieving the synchronous updating and execution of servo control data. Moreover, the system is low in cost, and is stable and reliable.

Description

technical field [0001] The invention relates to the field of servo motors, in particular to the field of synchronous control of servo drives. Background technique [0002] Servo drives (servo drives), also known as "servo controllers" and "servo amplifiers", are a type of controller used to control servo motors, and are mainly used in high-precision positioning systems. Generally, the servo motor is controlled by three methods of position, speed and torque to achieve high-precision positioning of the transmission system. It is currently a high-end product of transmission technology and an important core component for high-precision numerical control of mechanical equipment. [0003] In recent years, real-time industrial Ethernet technology has been born. This technology not only has fast transmission speed, large data packet capacity, long transmission distance, flexible topology, but also can guarantee high real-time and synchronization performance, so it has become a new ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/048
CPCG05B19/048
Inventor 刘葵刘波汤小平
Owner 清能德创电气技术(北京)有限公司