Numerical control electrical machine

Abstract

The invention provides a numerical control motor which comprises a photoelectric inductive module, a magnetoelectric inductive module and a processor; the photoelectric inductive module, the magnetoelectric inductive module and the processor are connected with the motor; the photoelectric inductive module and the magnetoelectric inductive module are mechanically connected with the motor; the signal lines of the photoelectric inductive module and the magnetoelectric inductive module are connected with the processor; the processor is also connected with an emergency power supply; the photoelectric inductive module and the magnetoelectric inductive module match each other so as to monitor the rotation of the motor. The invention has the advantages of accurate positioning of the motor, no upper limit in the limitation range, less mechanical connection, smaller abrasion, less power loss in the static state of the motor, continuous monitoring after the power is cut; thus the invention is suitable for wide promotion.

Description

technical field [0001] The invention relates to a numerically controlled motor, in particular to a numerically controlled motor with a stroke limiting function. Background technique [0002] When the motor is used in facilities such as rolling shutter doors, it is necessary to control the rotation stroke of the motor to achieve accurate opening and closing. The common method is to connect a mechanical limiter on the motor to form a mechanical limit motor. The working principle is that the motor drives the screw to rotate, so that the nut on the screw moves in a certain direction, and the position signal of the motor is transmitted to the control component by squeezing the travel switch. Be the Chinese patent of 01249134.9 as the patent No.—tubular motor stroke controller, its shortcoming is: positioning is not accurate, parts are easy to wear, and the limit range is limited. There are also motors that use photoelectric induction for stroke control, s...

AI Technical Summary

Problems solved by technology

For example, the Chinese patent No. 01249134.9 - tubular motor travel controller, its disadvantages are: inaccurate positioning, easy wear and tear of parts, limited limit range

There are also motors that use photoelectric induction for stroke control, such as the Chinese patent No. 200420074576.4 - photoelectric induction electronic stroke tubular motor. Although it avoids various shortcomings of mechanical limit motors, it also produces new problems at the same time. , that is, when the motor is at rest, the control system and processor are still in the power-on working state; and it cannot be used where the motor has mechanical movement after power-off, otherwise the positioning needs to be reset when the power is turned on again

Images