JPH0348395U

JPH0348395U -

Info

Publication number: JPH0348395U
Application number: JP1989109817U
Authority: JP
Priority date: 1989-09-20
Filing date: 1989-09-20
Publication date: 1991-05-09
Anticipated expiration: 2004-09-20
Also published as: JP2501528Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す装置構成図、
第２図は同期制御部の応答波形図、第３図は従来
の装置構成図である。１……基準側電動機、３……速度制御部、４，
９……電流制御部、５，１０……パルスピツクア
ツプ、７……追従側電動機、１２……同期制御部
、１３……負荷分担設定器、１４……強制同期回
路、１５……アツプダウンカウンタ、１６……マ
イクロコンピユータ、１７……Ｄ／Ａ変換器、１
８……ウインドウコンパレータ、１９……抑止回
路。 FIG. 1 is an apparatus configuration diagram showing an embodiment of the present invention;
FIG. 2 is a response waveform diagram of the synchronization control section, and FIG. 3 is a diagram showing the configuration of a conventional device. 1...Reference side electric motor, 3...Speed control section, 4,
9...Current control unit, 5, 10...Pulse pickup, 7...Following side motor, 12...Synchronization control unit, 13...Load sharing setting device, 14...Forced synchronization circuit, 15...Up-down counter , 16...Microcomputer, 17...D/A converter, 1
8...Window comparator, 19...Suppression circuit.

Claims

[Scope of utility model registration request]

a first pulse pickup that detects the speed of the reference motor; a first current control section that controls the current of the motor using the control calculation result of the reference motor as a current command; and a load sharing coefficient for the current command. a load sharing setting device that performs calculations, a second current control section that uses the calculation result as a current command to control the current of the following motor, a second pulse pickup that detects the speed of the following motor; an up-down counter that detects the phase difference between the two electric motors by inputting up and down output pulses from the first pulse pickup and the second pulse pickup; a microcomputer that performs phase control calculations from this phase difference; a D/A converter that converts the result into an analog signal to obtain a current command adjustment output of the second current control section; and a D/A converter that converts the result into an analog signal to obtain a current command adjustment output of the second current control section; 1. A follow-up control device for an electric motor, comprising forced synchronization means for resetting the up counter when the up counter becomes zero.