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Rotating speed dynamic adjusting method and corresponding device, system and physical layer interface

A technology of dynamic adjustment and rotational speed, applied in control systems, motor control, electrical components, etc., can solve problems such as affecting control accuracy and processing production, signal accuracy deterioration, etc., to meet long-distance transmission, increase equipment costs, and improve control. The effect of precision

Active Publication Date: 2015-06-03
BEIJING A&E TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the time, the driver works under the condition of small voltage signal control, that is, under the condition of relatively low speed operation, and the existence of external disturbance causes the accuracy of the signal to deteriorate, thus affecting the control accuracy and processing production

Method used

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  • Rotating speed dynamic adjusting method and corresponding device, system and physical layer interface
  • Rotating speed dynamic adjusting method and corresponding device, system and physical layer interface
  • Rotating speed dynamic adjusting method and corresponding device, system and physical layer interface

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Embodiment Construction

[0055] figure 1 It is an embodiment of the speed dynamic adjustment method of the present invention. In this embodiment, the industrial computer is connected to the driver through the analog signal line and the auxiliary serial bus, and the driver is connected to the motor. The industrial computer sends an analog signal to the driver through the analog signal line, and the driver converts the analog signal into a driver speed command and sends it to the motor to control the operation of the motor. Among them, there is a mapping relationship between the analog signal and the rotational speed command of the driver. The auxiliary serial communication bus can be CAN bus or any other effective industrial bus, such as Modbus, etc.

[0056] The flow of the speed dynamic adjustment method is as follows: figure 1 As shown, it specifically includes the following steps:

[0057] Step S101, when the industrial computer changes the mapping parameters between the analog signal and the r...

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Abstract

An embodiment of the invention discloses a rotating speed dynamic adjusting method and further provides a corresponding device, system and physical layer interface. An industrial personal computer is connected with a driver through an auxiliary serial communication bus and an analog signal line. The industrial personal computer sends analog quantity signals to the driver through the analog signal line, and the analog quantity signals and driver rotating speed commands have a mapping relation. When the industrial personal computer changes mapping parameters of the analog quantity signals and the driver rotating speed commands, the industrial personal computer sends the mapping parameters to the driver through the auxiliary serial communication bus. The driver updates the mapping parameters and feeds back updating success information to the industrial control computer. The industrial personal computer adjusts the analog quantity signals according to changed mapping parameters. The rotating speed dynamic adjusting method and the corresponding device, system and physical layer interface can improve signal precision under the same disturbance environment so as to improve control precision when the motor operates at low speed.

Description

technical field [0001] The invention relates to the technical field of mechanical automation, in particular to a method for dynamically adjusting a rotating speed, corresponding equipment and systems, and a physical layer interface. Background technique [0002] At present, the commonly used interfaces for controlling the rotational speed of drives all use analog signal interfaces, that is, the host computer linearly controls the rotational speed of the servo motor by sending an analog signal. The upper computer converts the digital command signal into an analog command signal through a digital-to-analog conversion module, and the command is transmitted to the driver through a wire, and then through the analog-to-digital conversion module in the driver, the analog command signal is converted into a digital command signal. [0003] When the driver works under analog signal control, the voltage range of the analog signal corresponds to the maximum control command. For example,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P29/00
Inventor 杨书生刘葵
Owner BEIJING A&E TECH
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