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Multi-axis servo motor control system and method based on EtherCAT P bus technology

A technology of servo motor and bus technology, which is applied in the direction of multiple motor speed/torque control, control system, motor speed or torque control, etc. It can solve problems such as the complexity of system cables and improve system reliability. performance, reducing complexity

Active Publication Date: 2020-10-02
ZHEJIANG LAB
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Problems solved by technology

Chinese patent numbers CN104820403B, CN204650244U, and CN109308030A can improve the speed and synchronization performance of the system communication interface by applying EtherCAT bus technology to robots, CNC machine tools, and servo motor control systems, but they still cannot solve the problem of complex system cables

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  • Multi-axis servo motor control system and method based on EtherCAT P bus technology
  • Multi-axis servo motor control system and method based on EtherCAT P bus technology
  • Multi-axis servo motor control system and method based on EtherCAT P bus technology

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Embodiment Construction

[0045] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the purpose and effect of the present invention will become clearer. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

[0046] The structural block diagram of the multi-axis servo control system provided by the present invention is as follows: figure 1 As shown, it includes a motion controller and several servo drive systems, and the motion controller is connected with the servo drive system through the EtherCAT P bus; each servo drive system includes an electrically connected servo drive and a motor; A position sensor is embedded in the motor to sense the position of the motor rotor. The EtherCAT P bus is used to transmit the control and feedback signals of each motor, so as to realize multi-motor control; the EtherCAT P bus...

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Abstract

The invention discloses a multi-axis servo motor control system and control method based on an EtherCAT P bus technology. The motor control system comprises a motion controller and a plurality of servo driving systems, wherein the motion controller and the servo driving systems are connected through an EtherCAT P bus; and each servo driving system comprises a servo driver and a motor which are electrically connected. According to the system, the power supply processing circuit is additionally arranged at the EtherCAT communication network port, so that transmission of two paths of isolated power supplies is realized on one EtherCAT communication cable, the number of system cables can be reduced on the basis of ensuring the high communication rate and high synchronization performance of thesystem, and the reliability of the system is improved.

Description

technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to a multi-axis servo motor control system and method based on EtherCAT P bus technology. Background technique [0002] In recent years, multi-axis servo control systems have been developed rapidly and are widely used in intelligent robots, high CNC machine tools, flexible manufacturing and other fields. As the complexity of these application fields becomes higher and higher, and the functions become stronger and stronger, new requirements are put forward for the communication interface of the servo control system. Most of the traditional multi-axis servo control systems are based on the bus with serial communication characteristics, which have the problems of low communication rate and poor synchronization performance. At the same time, there are many power and communication cables for these complex control devices, which have problems such as high installation a...

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Application Information

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IPC IPC(8): H02P5/00H02P6/04
CPCH02P5/00H02P6/04
Inventor 华强谢安恒柳案明孙阳胡海涛张丹
Owner ZHEJIANG LAB
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