JPS6214827U - - Google Patents
Info
- Publication number
- JPS6214827U JPS6214827U JP10645085U JP10645085U JPS6214827U JP S6214827 U JPS6214827 U JP S6214827U JP 10645085 U JP10645085 U JP 10645085U JP 10645085 U JP10645085 U JP 10645085U JP S6214827 U JPS6214827 U JP S6214827U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- optical coupling
- coupling elements
- neutral point
- contact
- 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
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Electronic Switches (AREA)
- Logic Circuits (AREA)
Description
第１図ａ，ｂは本考案の一実施を示す回路構成
図、第２図ａ，ｂは従来の回路構成図である。
１は接点、２，２１，２２は光結合素子、３は
処理装置、３１は論理積回路、Ｒ１，Ｒ２は抵抗
、Ｃ１，Ｃ２はコンデンサ、Ｆ，Ｆ１，Ｆ２は接
地点、○＋，○−は直流電源線。
1A and 1B are circuit configuration diagrams showing one implementation of the present invention, and FIGS. 2A and 2B are conventional circuit configuration diagrams. 1 is a contact, 2, 21 and 22 are optical coupling elements, 3 is a processing device, 31 is an AND circuit, R 1 and R 2 are resistors, C 1 and C 2 are capacitors, and F, F 1 and F 2 are connections. Points ○+ and ○- are DC power lines.
Claims (1)
あるいはサージ吸収用中性点接地コンデンサを接
続した直流電源を動作電源とし接点情報を処理装
置などへ入力する回路において、前記直流電源線
間に接続され接点の両側に夫々光結合素子を直列
接続した回路と前記各光結合素子の出力の論理積
回路とによつて構成されたことを特徴とする接点
信号入力回路。 Neutral point grounding resistor for ground fault detection between DC power lines,
Alternatively, in a circuit that uses a DC power supply connected to a neutral point grounding capacitor for surge absorption as an operating power source and inputs contact information to a processing device, etc., optical coupling elements are connected in series between the DC power lines and on both sides of the contact. A contact signal input circuit comprising a circuit and an AND circuit of outputs of each of the optical coupling elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10645085U JPS6214827U (en) | 1985-07-12 | 1985-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10645085U JPS6214827U (en) | 1985-07-12 | 1985-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6214827U true JPS6214827U (en) | 1987-01-29 |
Family
ID=30981819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10645085U Pending JPS6214827U (en) | 1985-07-12 | 1985-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6214827U (en) |
-
1985
- 1985-07-12 JP JP10645085U patent/JPS6214827U/ja active Pending
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