JPH027735U

JPH027735U -

Info

Publication number: JPH027735U
Application number: JP1988082496U
Authority: JP
Priority date: 1988-06-22
Filing date: 1988-06-22
Publication date: 1990-01-18

Description

[Brief explanation of drawings]

第１図及び第２図はこの考案の一実施例を示し
、第１図は故障検出装置の回路図、第２図は第１
図における動作を示すタイムチヤートである。図において、１はコンタクタ、１００は故障検
出手段、１０１は信号入力検出手段、１０２は負
荷電圧入力検出手段、１０３は異常検出表示手段
、１０４は時限発生手段、１０５は保持手段であ
る。なお、図中、同一符号は同一、または相当部
分を示す。 Figures 1 and 2 show an embodiment of this invention, with Figure 1 being a circuit diagram of the failure detection device, and Figure 2 being the circuit diagram of the failure detection device.
It is a time chart showing the operation in the figure. In the figure, 1 is a contactor, 100 is a failure detection means, 101 is a signal input detection means, 102 is a load voltage input detection means, 103 is an abnormality detection display means, 104 is a time limit generation means, and 105 is a holding means. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

signal input and detection means 101 for controlling on/off of the contactor; load voltage input and detection means 102 for the load driven by the contactor;
A means 103 for detecting and displaying an abnormality in the load current of the load, and a means 103 for detecting an abnormality in order to prevent the abnormality detecting and displaying means 103 from malfunctioning due to residual voltage of the load when the contactor is operating normally. and a time limit generation means 104 for locking the operation of the display means 103 for a set time, and a holding means 105 for holding the state detected and displayed by the abnormality detection and display means 103.