JPS59176970U - Contact input/output circuit - Google Patents
Contact input/output circuitInfo
- Publication number
- JPS59176970U JPS59176970U JP7137583U JP7137583U JPS59176970U JP S59176970 U JPS59176970 U JP S59176970U JP 7137583 U JP7137583 U JP 7137583U JP 7137583 U JP7137583 U JP 7137583U JP S59176970 U JPS59176970 U JP S59176970U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- contact
- output
- inspection
- inputs
- 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
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Dc Digital Transmission (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図は従来の接点入出力回路を示す図、第２図はこの
考案の一実施例を示す接点入出力回路を示す図である。
図中１，５はドライバー回路、２．６はリレー、３は２
のリレー接点、？、 ８． ９は６のリレー接点、４
は光結合回路である。なお図中、同一あるいは相当部分
には同一符号を付して示しである。FIG. 1 is a diagram showing a conventional contact input/output circuit, and FIG. 2 is a diagram showing a contact input/output circuit showing an embodiment of this invention. In the diagram, 1 and 5 are driver circuits, 2.6 are relays, and 3 is 2
relay contact,? , 8. 9 is the relay contact of 6, 4
is an optical coupling circuit. In the drawings, the same or corresponding parts are designated by the same reference numerals.
Claims (1)
回路により動作し、接点の共通端子を二つの端子のいず
れかに切換接続するためのリレーおよび上記二つの端子
のそれぞれにつながる出力端子とを有する接点出力回路
と、上記接点出力回路の出力端子間に電圧を印加する電
源と、点検用のディジタル信号を入力するドライバ回路
、このドライバ回路により動作するリレー、および上記
接点出力回路の共通端子に接続された共通端子を有し、
二つの端子のうち一方の端子が上記接点出力回路の一方
の出力端子につながる接点とを有する点検回路と、上記
点検回路の接点に有する二つの端子のうち他方の端子か
らの出力信号及び接点入力端子間に印加する接点入力電
圧とを入力する論理和回路、およびこの論理和回路の出
力と上記接点入力電圧とを入力する光結合回路とを有す
る接点入力回路と、点検用電源と、この点検用電源を接
点入力回路、および点検用回路に与えるためのリレー接
点と、このリレー接点の出力と上記接点出力回路の出力
とを入力する論理和回路とからなり、上記接点出力回路
の入力信号と点検信号および光結合回路の出力を用いて
リレー接点の動作を点検することを特徴とする接点入出
力回路。A contact output circuit that has a driver circuit that inputs a digital signal, a relay operated by this driver circuit to switch and connect the common terminal of the contacts to one of the two terminals, and an output terminal connected to each of the above two terminals. , a power supply that applies voltage between the output terminals of the contact output circuit, a driver circuit that inputs a digital signal for inspection, a relay operated by this driver circuit, and a common terminal connected to the common terminal of the contact output circuit. has a terminal,
An inspection circuit having a contact, one of which is connected to one output terminal of the contact output circuit, and an output signal and contact input from the other of the two terminals that the inspection circuit has as a contact. A contact input circuit having an OR circuit that inputs the contact input voltage applied between the terminals, and an optical coupling circuit that inputs the output of the OR circuit and the contact input voltage, a power supply for inspection, and the inspection power supply. It consists of a relay contact for supplying power to the contact input circuit and the inspection circuit, and an OR circuit that inputs the output of this relay contact and the output of the contact output circuit, and the input signal of the contact output circuit and A contact input/output circuit characterized in that the operation of a relay contact is checked using a check signal and an output of an optical coupling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7137583U JPS59176970U (en) | 1983-05-13 | 1983-05-13 | Contact input/output circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7137583U JPS59176970U (en) | 1983-05-13 | 1983-05-13 | Contact input/output circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59176970U true JPS59176970U (en) | 1984-11-27 |
Family
ID=30201522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7137583U Pending JPS59176970U (en) | 1983-05-13 | 1983-05-13 | Contact input/output circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59176970U (en) |
-
1983
- 1983-05-13 JP JP7137583U patent/JPS59176970U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59176970U (en) | Contact input/output circuit | |
| JPS58175472U (en) | Contact input circuit that can detect failures | |
| JPS6046635U (en) | Adhesion prevention device for mercury contact relays | |
| JPS58101234U (en) | Redundant interface circuit | |
| JPS6074320U (en) | Electronic equipment output switching circuit | |
| JPS586279U (en) | Switch inspection device | |
| JPS58195333U (en) | Digital signal output switching device in dual system system | |
| JPS5819321U (en) | load control device | |
| JPS593733U (en) | overcurrent relay | |
| JPS58178780U (en) | Signal switching control circuit | |
| JPS58103443U (en) | Relay redundant circuit | |
| JPS6039126U (en) | current source circuit | |
| JPS59132217U (en) | BTL power amplifier | |
| JPS5972851U (en) | Backup power supply switching circuit | |
| JPS6087450U (en) | circuit connection | |
| JPS6039520U (en) | Multipurpose control device | |
| JPS59151161U (en) | Multi-point measurement circuit | |
| JPS5866736U (en) | Non-contact relay circuit | |
| JPS59170947U (en) | Piezoelectric relay response improvement circuit | |
| JPS60175442U (en) | self-holding circuit | |
| JPS5875433U (en) | Operation switching device for electrical equipment | |
| JPS58117501U (en) | Abnormal state detection device for control equipment | |
| JPS60120505U (en) | switching circuit | |
| JPS59109390U (en) | display circuit | |
| JPS59180515U (en) | Signal switching circuit |