JPS586537U

JPS586537U - monitoring circuit

Info

Publication number: JPS586537U
Application number: JP1981100092U
Authority: JP
Inventors: 大西　公和
Original assignee: 三菱電機株式会社
Priority date: 1981-07-02
Filing date: 1981-07-02
Publication date: 1983-01-17

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図は従来の監視回路の回路図、第２図はこの考案の
一実施例による監視回路の回路図である。４．１０・・・・・・タイマ、６−−１〜６−４．１２
−１〜１２−４・・・・・・ランプ、７−１〜７−３・
・・・・・動作コイル、８−１〜８−３・・・・・・復
帰コイル。なお、図中、同一符号は同一部分を示す。FIG. 1 is a circuit diagram of a conventional monitoring circuit, and FIG. 2 is a circuit diagram of a monitoring circuit according to an embodiment of the present invention. 4.10... Timer, 6--1 to 6-4.12
-1 to 12-4... Lamp, 7-1 to 7-3.
...Operating coil, 8-1 to 8-3...Return coil. In addition, in the figures, the same reference numerals indicate the same parts.

Claims

[Scope of utility model registration request]

A contact that has a keep type first to fourth contacts and is to be monitored;
It has an operating coil that is energized when the first contact and the fifth contact are closed, and the fifth contact, and a timer operates when the monitored contact and the fourth contact are closed. a timer that lights up when the third contact is energized, a sixth contact that is closed for recovery, a seventh contact that is closed for recovery, and an indicator that is lit when the second contact is closed. 1st above
- A return coil for returning the fourth contact, and a relay having the seventh contact and energized when the contact to be monitored is closed, and monitoring the operating coil, lamp, and return coil. A monitoring circuit is provided for each target contact.