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Control system for direct current brush motor and three-state control method thereof

A DC brushed motor and control system technology, applied in the field of servo control system, can solve the problems of complex control software, large volume of servo drive, inconvenient use of space occupation, etc., and achieve high safety performance and less cumbersome operation

Inactive Publication Date: 2018-04-20
CHINA SOUTH IND GRP AUTOMATION RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The control method of the DC brushed motor occupies more interfaces of the host computer controller, the control software is more complicated, and the volume of the servo driver is large.

Method used

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  • Control system for direct current brush motor and three-state control method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 as shown,

[0028] A control system for DC brushed motors, including a host computer controller, a single-pole relay, a double-pole relay, and a DC motor.

[0029] The double-pole relay has two moving contacts: moving contact COM1 and moving contact COM2, and two normally closed static contacts: normally closed static contact NC1 and normally closed static contact NC2, and There are 2 normally open static contacts: normally open static contact NO1, normally open static contact NO2, the single-pole relay has a moving contact COM, a normally closed static contact NC, and a normally open static contact NO;

[0030] The moving contact COM1 is connected to the A terminal of the DC motor, the moving contact COM2 is connected to the B terminal of the DC motor, the normally closed static contact NC1 is connected to the normally open static contact NO2 and then connected to the normally open static contact NO, and the normally open static contact NO is connecte...

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PUM

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Abstract

The invention discloses a control system for a direct current brush motor and a three-state control method thereof. The control system comprises an upper computer controller, a single-pole relay, a double-pole relay and a direct current motor; the upper computer is connected with coil windings of the single-pole relay and the double-pole relay and controls on-off of the coil windings of the single-pole relay and the double-pole relay; the double-pole relay has two movable contacts which respectively are a movable contact COM1 and a movable contact COM2, also has two normally-closed static contacts which respectively are a normally-closed static contact NC1 and a normally-closed static contact NC2, and further has two normally-open static contacts which respectively are a normally-open static contact NO1 and a normally-open static contact NO2; the single-pole relay has a movable contact COM, a normally-closed static contact NC and a normally-open static contact NO; the movable contact COM1 is connected with an A end of the direct current motor; the movable contact COM2 is connected with a B end of the direct current motor; after being connected, the normally-closed static contact NC1 and the normally-open static contact NO2 are connected with the normally-open static contact NO; after being connected, the normally-closed static contact NC2 and the normally-open static contact NO1 are connected with a power supply cathode; the normally-closed static contact NC is idle; and the movable contact COM is connected with a power supply anode.

Description

technical field [0001] The invention belongs to the technical field of servo control systems, and in particular relates to a control system for a DC brushed motor and a three-state control method thereof. The invention can be used for DC brushed motor control in a servo control system, such as a mechanical arm, a turntable, and the like. Background technique [0002] DC brushed motors usually have three working modes: forward rotation, reverse rotation, and stop. At present, the commonly used control method is to control the drive through the servo drive designed with special devices. The host computer controller and the servo drive are connected through the PWM interface and I / O O interface for control. [0003] The control method of the DC brushed motor occupies many interfaces of the upper computer controller, the control software is more complicated, and the servo driver is bulky. [0004] Therefore, it is necessary to design a three-state control method for brushed DC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/03
CPCH02P7/03
Inventor 张振禹廖万胜章百宝傅于天段红
Owner CHINA SOUTH IND GRP AUTOMATION RES INST
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