JPS60138391U

JPS60138391U - Electric motor control device

Info

Publication number: JPS60138391U
Application number: JP2390284U
Authority: JP
Inventors: 永坂　禎
Original assignee: 株式会社東芝
Priority date: 1984-02-23
Filing date: 1984-02-23
Publication date: 1985-09-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の一実施例の始動制御装置の回路図である
。　　　・１・・・主回路電源、３・・・接触器、４・・・保護継
□電器、５・・・電動機、６・・・速度検出器、７，８
・・・操作スイッチ、９・・・励磁巻線、１０・・・信
号出力装置、１１・・・制御電源。The drawing is a circuit diagram of a starting control device according to an embodiment of the present invention.・ 1... Main circuit power supply, 3... Contactor, 4... Protective relay electrical equipment, 5... Electric motor, 6... Speed detector, 7, 8
... Operation switch, 9... Excitation winding, 10... Signal output device, 11... Control power supply.

Claims

[Claims for Utility Model Registration] An electric motor driven by receiving power from a power supply circuit;
a speed detector that detects the rotational speed of the electric motor and outputs a speed signal; an electromagnetic contactor that is connected between the power supply circuit and the electric motor to open and close power supply to the electric motor; Opening/closing operation. The motor control device includes a control circuit that supplies control power to an excitation winding that controls the operation of the motor, and a signal output device that outputs a turn-on signal when the speed signal becomes equal to or less than a preset speed value. and a locking device connected to the control circuit and capable of supplying controlled power to the excitation winding in response to a turn-on signal from the signal output device.