JPS6035453U - Contact on/off detection circuit - Google Patents
Contact on/off detection circuitInfo
- Publication number
- JPS6035453U JPS6035453U JP12646983U JP12646983U JPS6035453U JP S6035453 U JPS6035453 U JP S6035453U JP 12646983 U JP12646983 U JP 12646983U JP 12646983 U JP12646983 U JP 12646983U JP S6035453 U JPS6035453 U JP S6035453U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- signal line
- detection circuit
- current
- reciprocating
- 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
Landscapes
- Relay Circuits (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図は接点オンオフ検知回路の従来構成図、第２図は
本考案による接点オンオフ検知回路の一実施例を示す構
成図、第３図は断線検知回路の一具体例を示す構成図で
ある。
２・・・・・・被検知接点、３・・・・・・信号線、４
・・・・・・接点オンオフ検知リレー、７・・・・・・
抵抗、８・・・・・・断線検知回路。FIG. 1 is a conventional configuration diagram of a contact on/off detection circuit, FIG. 2 is a configuration diagram showing an embodiment of a contact on/off detection circuit according to the present invention, and FIG. 3 is a configuration diagram showing a specific example of a disconnection detection circuit. . 2...Detected contact, 3...Signal line, 4
...Contact on/off detection relay, 7...
Resistor, 8...Disconnection detection circuit.
Claims (1)
信号線の他端近傍に直列に挿入接続された被検知接点と
、前記信号線の通電端近傍に直列に挿入接続された接点
オンオフ検知リレーとを有する接点オンオフ検知回路に
おいて、前記往復信号線の他端近傍に前記被検知接点に
並列に接続され、被検知接点オフの際に前記リレーの動
作に影響を及ぼさない低電流を前記信号線に発生させる
ための抵抗と、前記往復信号線の通電端近傍で前記低電
流の有無から往復信号線の異常を検知する断線検知回路
とを備えたことを特徴とすこ接点オンオフ検知回路。A reciprocating signal line in which one end is a current-carrying end and the other end is folded back, a contact to be detected is inserted and connected in series near the other end of this signal line, and a contact is inserted and connected in series near the current-carrying end of the signal line. In a contact on/off detection circuit having an on/off detection relay, a low current that is connected in parallel to the detected contact near the other end of the reciprocating signal line and that does not affect the operation of the relay when the detected contact is turned off is provided. A contact on/off detection circuit comprising: a resistance for generating a voltage in the signal line; and a disconnection detection circuit that detects an abnormality in the reciprocating signal line based on the presence or absence of the low current near the current-carrying end of the reciprocating signal line. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12646983U JPS6035453U (en) | 1983-08-17 | 1983-08-17 | Contact on/off detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12646983U JPS6035453U (en) | 1983-08-17 | 1983-08-17 | Contact on/off detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6035453U true JPS6035453U (en) | 1985-03-11 |
Family
ID=30287563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12646983U Pending JPS6035453U (en) | 1983-08-17 | 1983-08-17 | Contact on/off detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6035453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682040A (en) * | 1985-08-12 | 1994-03-22 | British Gas Plc | Relay operating device |
-
1983
- 1983-08-17 JP JP12646983U patent/JPS6035453U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682040A (en) * | 1985-08-12 | 1994-03-22 | British Gas Plc | Relay operating device |
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