JPH02145402U - - Google Patents
Info
- Publication number
- JPH02145402U JPH02145402U JP5379689U JP5379689U JPH02145402U JP H02145402 U JPH02145402 U JP H02145402U JP 5379689 U JP5379689 U JP 5379689U JP 5379689 U JP5379689 U JP 5379689U JP H02145402 U JPH02145402 U JP H02145402U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- monitoring device
- output
- voltage monitoring
- module cards
- 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
- 238000012806 monitoring device Methods 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 claims 1
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Safety Devices In Control Systems (AREA)
Description
第１図は本考案の一実施例に係るシーケンス制
御装置における誤動作防止回路の構成を示すブロ
ツク図である。
１１ａ，１１ｂ…電圧監視装置、１２…オア回
路、１３…出力禁止回路、１４…入力モジユール
カード、１５…論理モジユールカード、１６…出
力モジユールカード、１７，１８…タイマ回路、
２１ａ，２１ｂ，２２，２３…アンド回路。
FIG. 1 is a block diagram showing the configuration of a malfunction prevention circuit in a sequence control device according to an embodiment of the present invention. 11a, 11b...voltage monitoring device, 12...OR circuit, 13...output prohibition circuit, 14...input module card, 15...logic module card, 16...output module card, 17, 18...timer circuit,
21a, 21b, 22, 23...AND circuit.
Claims (1)
装置において、電源の電圧状態を監視する電圧監
視装置と、この電圧監視装置により電源の異常が
検出された際、上記各モジユールカードの出力を
瞬時に禁止する出力禁止手段と、上記電圧監視装
置により電源の正常復帰が検出された際、上記各
モジユールカードの出力を予め設定した一定の順
序で復帰させる復帰手段とを具備したことを特徴
とするシーケンス制御装置における誤動作防止回
路。 In a sequence control device equipped with various module cards, there is a voltage monitoring device that monitors the voltage status of the power supply, and when an abnormality in the power supply is detected by this voltage monitoring device, the output of each of the above module cards is instantly inhibited. A sequence control characterized by comprising an output inhibiting means and a restoring means for restoring the output of each of the module cards in a predetermined order when the voltage monitoring device detects that the power supply returns to normal. Malfunction prevention circuit in equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5379689U JPH02145402U (en) | 1989-05-10 | 1989-05-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5379689U JPH02145402U (en) | 1989-05-10 | 1989-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02145402U true JPH02145402U (en) | 1990-12-10 |
Family
ID=31575294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5379689U Pending JPH02145402U (en) | 1989-05-10 | 1989-05-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02145402U (en) |
-
1989
- 1989-05-10 JP JP5379689U patent/JPH02145402U/ja active Pending
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