JPS5789101A - Protecting device of controller - Google Patents
Protecting device of controllerInfo
- Publication number
- JPS5789101A JPS5789101A JP16330780A JP16330780A JPS5789101A JP S5789101 A JPS5789101 A JP S5789101A JP 16330780 A JP16330780 A JP 16330780A JP 16330780 A JP16330780 A JP 16330780A JP S5789101 A JPS5789101 A JP S5789101A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- contact
- controller
- contactor
- electric
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE:To protect the faulty working of an electric controller regardless of the system of an electronic controller, by providing a power supply line relay of the electronic controller and then cutting off the feeding to the electric controller at a contact coupling to the said relay. CONSTITUTION:A relay 2 having the reset time properties which is nearly equal to the instantaneous service interruption time to be protected is connected to a power supply line 1a of a microcomputer 1. A contact 4 of the relay 2 is connected in series to a main circuit application circuit. In case when the supply of the electric power is discontinued instantaneously for some factor and the time of this discontinuation exceeds the reset time of the relay 2, the contact 4 of the relay 2 opens. As a result, a contactor 5 is not energized and its contacts 6 and 7 are opened. Accordingly the self-supporting circuit of the contactor 5 is cut off, and as a result, the contact 7 is never closed again to stop the feed to an electric controller. Thus no faulty working is caused to an erroneous command output which is given from the computer 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16330780A JPS5789101A (en) | 1980-11-21 | 1980-11-21 | Protecting device of controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16330780A JPS5789101A (en) | 1980-11-21 | 1980-11-21 | Protecting device of controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5789101A true JPS5789101A (en) | 1982-06-03 |
Family
ID=15771334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16330780A Pending JPS5789101A (en) | 1980-11-21 | 1980-11-21 | Protecting device of controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5789101A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057491A1 (en) * | 2009-11-10 | 2011-05-19 | 湖南三一智能控制设备有限公司 | Electric control system for controlling an engineering apparatus and said engineering apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933089A (en) * | 1972-07-31 | 1974-03-26 |
-
1980
- 1980-11-21 JP JP16330780A patent/JPS5789101A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933089A (en) * | 1972-07-31 | 1974-03-26 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057491A1 (en) * | 2009-11-10 | 2011-05-19 | 湖南三一智能控制设备有限公司 | Electric control system for controlling an engineering apparatus and said engineering apparatus |
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