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Method for servo drive to control motor with one-way bearing function

A technology of servo drive and function, which is applied in the direction of motor generator/starter, single multi-phase induction motor starter, etc., can solve the problems of increasing motor cost and maintenance cost, and affecting the operation accuracy of equipment, so as to reduce manufacturing cost and Maintenance cost and the effect of ensuring operation accuracy

Inactive Publication Date: 2016-02-17
上海开通数控有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the motor needs to rotate in one direction due to the operation of the equipment, it is necessary to install a one-way bearing on the motor shaft, which increases the cost of the motor and maintenance cost, and has a certain impact on the operation accuracy of the equipment

Method used

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  • Method for servo drive to control motor with one-way bearing function
  • Method for servo drive to control motor with one-way bearing function

Examples

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Embodiment Construction

[0015] Such as figure 1 and figure 2 As shown, the method for the servo drive of the present invention to control the motor to have a one-way bearing function includes the following steps:

[0016] Step 1. Using the original external torque limit function and reverse stroke limit function of the servo drive, set the external forward torque limit parameter of the motor to 0nm (N*m) through the servo drive 1 parameter setting; the reverse stroke The limit signal input is always valid, so that the control mode of the servo driver 1 is that the motor 2 rotates in the positive direction and the reverse direction is locked, and the motor 2 rotates in the positive direction as a clockwise or counterclockwise signal;

[0017] Step 2. The upper computer outputs the command signal of the rotation state of the motor 2 to the servo driver 1, and the servo driver 1 controls the switching between the static state and the moving state of the motor 2; the external torque limiting function i...

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Abstract

The invention discloses a method for enabling a servo driver control motor to have a function of a one-way bearing. A motor control mode is set to be one-way rotation, and the condition that a rotating direction is a clockwise direction or an anti-clockwise direction is judged; a servo driver of an upper computer is used for switching a stationary state and a moving state of a motor; in the stationary state, the servo driver excites the motor to conduct excitation, electromagnetic torque of the motor is zero in a forward direction, the motor can rotate in the forward direction, rotating speed of the motor is kept zero in a backward direction, and the motor can not rotate in the backward direction; in the moving state, the servo driver excites the motor to conduct excitation, the upper computer presets the torque and the rotating speed of the motor in the forward direction, the servo driver controls the motor to rotate in the forward direction, the rotating speed of the motor is always kept zero in the backward direction, the motor can not rotate in the backward direction under any condition until the servo driver changes the motor control mode. According to the method for enabling the servo driver control motor to have the function of the one-way bearing, the motor has the function of the one-way bearing without installing the one-way bearing, and therefore manufacturing and maintenance cost of the motor are effectively reduced, and operating accuracy of a device is guaranteed.

Description

technical field [0001] The invention relates to a method for controlling a motor with a one-way bearing function by a servo driver. Background technique [0002] One-way bearings are widely used in mechanical equipment motors in the fields of steel, mining, textiles, tobacco and fine chemicals. One-way bearings are a type of bearings that can rotate freely in one direction and lock in the other direction. Usually, there are many rollers, needle rollers or balls in the metal shell of the one-way bearing, and the shape of the rolling seat makes it only roll in one direction, but it will produce great resistance in the other direction, the so-called one-way. [0003] The actual one-way bearing has many disadvantages, such as small bearing force, easy wear of the bearing, troublesome assembly and disassembly, inconvenient replacement, and the unavoidable mechanical clearance of the one-way bearing affects the accuracy of equipment operation; Airtightness, dust, acid and alkali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P1/40
Inventor 骆滢陈忠
Owner 上海开通数控有限公司
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