SU1015335A1 - Device for controlling stepping motor - Google Patents

Abstract

A DEVICE FOR CONTROLLING A STEP ENGINE containing ksmmutator, first 1 1st, input to the device input, and output from the stepper motor input, the shaft of which is mechanically connected to the first feedback sensor, connected to the input of the speed meter and BTopcaiy switch input , characterized in that, in order to increase speed, in his eaeta i, a second feedback sensor and a riociieao coupled trigger, a modulo two adder and a prohibition element, the output of which is connected to the third input of the switch, the second the inputs of the prohibition element and the modulo adder are two connected respectively with the output of the speed meter and with the device input, the C-input of the TRI1uer is connected to the input of the speed control curler, and O-skhol to the fourth input of the switch and the output of the BToporq feedback sensor The engine is mechanically connected to the shaft of a stepped wheel motor.

Description

: SP

WITH

The invention relates to automatic regulation and can be used in tracking systems that are subject to increased demands for speed and noise immunity. A device for controlling a stepper motor is known, which contains a series-connected switch, a stepper motor, and a feedback sensor whose output is connected to the second BXOi of a ClJ switch that is closest to the invention in technical terms. An entity is a device for controlling a stepper motor containing a switch connected by a first input to an input of the device and an output to an input of a stepper motor whose shaft is mechanically connected to a feedback sensor, an output connected to an input of a speed meter and to a second input of a switch. A disadvantage of the known devices is the low speed. The purpose of the invention is to enhance the fast operation of the device. This goal is achieved by introducing a second feedback sensor and a serially connected trigger, a modulo two adder and a prohibition element, the output of which is connected to the third input of the switch, the second inputs of the prohibition element and the sum of the torus modulo two are connected respectively to the device. the output of the speed meter and the input of the device, the C input of the trigger is connected to the input of the speed meter, and D is the input to the fourth input of the switch and to the output of the feedback sensor mechanically connected to the shaft of the stepper motor The drawing shows a block diagram. devices for controlling a stepper motor. The device contains a switch 1, a stepping motor 2, the first and second sensors 3 and 4, a prohibition element 5, an adder 6 modulo two, a trigger 7 and a speed meter 8. In the diagram. (J denotes the drive directional drive signal, and U is the output signal of the i -th functional terminal. The dual-mode switch 1 serves to change the control windings of the step motor 2 according to the rotor position signals of sensors 3 and 4, thereby rotating the rotor the step of the electric motor in the direction, given 10 5 depending on the signal ignored and 1- generated by the blocking element 5, the switch 1 forms either the mode of its neutral commutation by signals U atchik 3 or the mode of forward switching by signals U of sensor 4. T The 7 D-type Igger, clocked by the front, determines the direction of rotation of the selector of the stepper motor 2. The direction of rotation of the rotor is based on the fact that the positive U-signal at one direction is raised to a high signal level and the other to a low level. Modulo 6 determine the coincidence of the specified and the actual direction of rotation determined by the trigger 7. In the case of a mismatch of these directions, the Modulator Two adder produces a signal (J. prohibiting the passage of the signal Ud through the element 5 of the ban. The speed meter 8 according to the signal Ug of the sensor 3 detects that pi has reached the rotation speed of the rotor of a certain value s. If the speed, then the speed meter 8 sends, through element 5 of the prohibition, a command to turn on the neutral switching, and if m, - then to turn on the forward switching. The device works as follows. In the initial state, the stepper motor rotor is stationary. When a device U .. is inputted to the device, corresponding to a specific direction of rotation, the rotor starts to accelerate at neutral switching in the given direction (direction. When the rotor reaches speed U), speed meter 8 generates a forward switching signal Uj which passes through prohibition element 5 the input of switch 1, since the given and actual directions coincide, and the stepper, motor 2 continues to accelerate at the forward switching. If the signal to change direction came when working on advanced communication (), then modulo 2 adder 6 will prohibit the advance switching command to go through element 5 of the prohibition. The stepping motor will go into deceleration mode on neutral commutation, and then begin acceleration in the opposite direction.

3. 1O15335.4

Turning on the reverse when working on one-application, the device is appropriate

switching switching with sufficiently followable systems,

the high speed of the stepper electric motor for the processing of fast-moving and slider leads to the acceleration of the rotor in the former input effects, and

in the proposed device, the speed of performance is increased by no less than

Reystva excluded in two times compared with the prototype.

Claims (1)

DEVICE FOR CONTROLLING A STEP ENGINE, containing a switch connected to the first input of the device and the output to the input of a stepper motor, the shaft of which is mechanically connected to the first feedback sensor, the output connected to the input of the speed meter and to the second input of the switch, different the fact that, in order to improve performance, they introduced into it a second feedback sensor and a trigger connected in series, an adder modulo two and a ban element, the output of which is connected to the third input of the switch, the second inputs of the inhibit element and the adder modulo two are connected respectively to the output of the speed meter and to the input of the device,. C-input of the traction device is connected to the input; speed meter, .a D -input - to the even input of the switch and to the output i of the second., feedback sensor, mechanically connected to the shaft of the engine’s step 335 1> 1015335