JPS5872918U

JPS5872918U - Time-limited relay operation display device

Info

Publication number: JPS5872918U
Application number: JP16539381U
Authority: JP
Inventors: 飯村　彰男
Original assignee: 株式会社東芝
Priority date: 1981-11-07
Filing date: 1981-11-07
Publication date: 1983-05-17

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]

第１図は従来の限時継電器の動作表示装置の構成図。第
２図は本考案に□よる限時継電器の動作表示装置の構成
図である。１・・・基本発振回路、２・・・外部起動回路、３・・
・発−振パルス母線、４・・・起動母線、５・・・時間
検出回路、６・・・出力信号母線、７．７’、？“、　
　７ａ、　　７ｂ。７ｃ、　　７ｄ・・・インバータ回路、６・・・出力信
号母線、７．７’、７“、　　７ａ、　　７ｂ、　　７
ｃ、　　７ａ−・・インバータ回路、８・・・外部と接
続する母線、９．　９ａ。９ｂ・・・ＡＮＤ回路、１０・・・ＡＮＤ出力母線、１
１゜１１ａ、１１ｂ・・・ＯＲ回路、１２・・・発光ダ
イオード、１３・・・正極性電源母線、１４・・・点検
スイッチ、１５・・・インバータ出力母線、１６・・・
抵抗。FIG. 1 is a configuration diagram of a conventional time-limited relay operation display device. FIG. 2 is a block diagram of an operation display device for a time-limited relay according to the present invention. 1... Basic oscillation circuit, 2... External starting circuit, 3...
- Oscillation pulse bus, 4... Start bus, 5... Time detection circuit, 6... Output signal bus, 7.7', ? “,
7a, 7b. 7c, 7d... Inverter circuit, 6... Output signal bus, 7.7', 7", 7a, 7b, 7
c, 7a--inverter circuit, 8-- bus bar connected to the outside, 9. 9a. 9b...AND circuit, 10...AND output bus, 1
1゜11a, 11b...OR circuit, 12...Light emitting diode, 13...Positive power supply bus, 14...Inspection switch, 15...Inverter output bus, 16...
resistance.

Claims

[Scope of utility model registration request]

In a time-limited relay operation display device that is installed in a switchboard installed in an electrical station and displays sequence operation, it is detected whether the external starting circuit output is deriving an operating output for a set time or longer with respect to the basic oscillation circuit output. A of the time detection circuit, the basic oscillation circuit output and the external starting circuit output
The light emitting diode operates under the ND condition, and means for checking the time detection circuit by operating a check switch and preventing the output of the time detection circuit from being outputted to the outside. What is claimed is: 1. An operation display device for a time-limited relay, characterized in that it causes the light emitting diode to blink and continuously lights up the light emitting diode after a time detection circuit has counted up.