JPS58124806U - Electric circuit failure detection device - Google Patents
Electric circuit failure detection deviceInfo
- Publication number
- JPS58124806U JPS58124806U JP2291182U JP2291182U JPS58124806U JP S58124806 U JPS58124806 U JP S58124806U JP 2291182 U JP2291182 U JP 2291182U JP 2291182 U JP2291182 U JP 2291182U JP S58124806 U JPS58124806 U JP S58124806U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- storage signal
- output
- failure detection
- detection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
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
第１図は従来の故障検出装置の回路図、第２図はこの考
案の一実施例の論理回路図、第３図はこの考案で使用さ
れる表示板の一例の正面図である。
ＬｌないしＬ４及びＬＩＯないしＬ２９：表示灯、■：
表示板、Ａ１ないしＡ４及びＢ１ないしＢ４：ＮＡＮＤ
ゲート、Ｃ１ないしＣ４及びＤ：インバータ、Ｅ：記憶
信号入力端子。FIG. 1 is a circuit diagram of a conventional failure detection device, FIG. 2 is a logic circuit diagram of an embodiment of this invention, and FIG. 3 is a front view of an example of a display board used in this invention. Ll to L4 and LIO to L29: Indicator light, ■:
Display board, A1 to A4 and B1 to B4: NAND
Gate, C1 to C4 and D: Inverter, E: Storage signal input terminal.
Claims (1)
る点の印加電圧の有無を所定の順序で検査する故障検出
装置において、２つのＮＡＮＤゲート及び１つのインバ
ータからなる同一構造の複数の直列回路と、故障が検出
された時に手動で若しくは自動的に発生される記憶信号
を上記直列回路中のそれぞれ一方のＮＡＮＤゲートに送
る記憶信号供給用インバータとを備え、各直列回路中の
上記一方のＮＡＮＤゲートは前段の故障検出点の電圧自
段の故障検出点の電圧、次段の一方のＮＡＮＤゲートの
出力及び上記記憶信号供給用インバータの出力が入力さ
れかつその出力側が自段の表示灯及びインバータの入力
側に接続され、各直列回路中の他方のＮＡＮＤゲートは
上記記憶信号と上記インバータの出力が入力されかつそ
の出力側が上記インバータの入力側に接続され、表示灯
は次段の表示灯が点灯すれば前段の表示灯が消灯され、
故障発生時には上記記憶信号を発生させることによりた
とえ故障が回復しても上記表示灯が故障状態を表示し続
けることを特徴とする電気回路の故障検出装置。In order to detect a fault in an electric circuit, a fault detection device tests in a predetermined order the presence or absence of an applied voltage at a point where an indicator light is connected. a series circuit; and a storage signal supply inverter that sends a storage signal generated manually or automatically when a fault is detected to each one of the NAND gates in the series circuit; The NAND gate receives the voltage of the failure detection point of the previous stage, the voltage of the failure detection point of the current stage, the output of one of the NAND gates of the next stage, and the output of the storage signal supply inverter, and its output side is the indicator light of the current stage. and the input side of the inverter, and the other NAND gate in each series circuit receives the above storage signal and the output of the inverter, and its output side is connected to the input side of the inverter, and the indicator light is used to display the next stage. When the light is on, the indicator light on the front stage will be turned off,
A failure detection device for an electric circuit, characterized in that when a failure occurs, the indicator lamp continues to display the failure state even if the failure is recovered by generating the storage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2291182U JPS58124806U (en) | 1982-02-19 | 1982-02-19 | Electric circuit failure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2291182U JPS58124806U (en) | 1982-02-19 | 1982-02-19 | Electric circuit failure detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58124806U true JPS58124806U (en) | 1983-08-25 |
Family
ID=30034971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2291182U Pending JPS58124806U (en) | 1982-02-19 | 1982-02-19 | Electric circuit failure detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58124806U (en) |
-
1982
- 1982-02-19 JP JP2291182U patent/JPS58124806U/en active Pending
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