JPS6465603A - Highly integrated control panel - Google Patents
Highly integrated control panelInfo
- Publication number
- JPS6465603A JPS6465603A JP22191387A JP22191387A JPS6465603A JP S6465603 A JPS6465603 A JP S6465603A JP 22191387 A JP22191387 A JP 22191387A JP 22191387 A JP22191387 A JP 22191387A JP S6465603 A JPS6465603 A JP S6465603A
- Authority
- JP
- Japan
- Prior art keywords
- power failure
- time
- state
- power
- contact device
- 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
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE:To accurately control an electromagnetic contact device by accurately recognizing the state of the contact device held before power failure and its power failure time at the time of restoring the power failure and controlling the state of the contact device at the time of power restoration based on said recognition in accordance with the characteristics of a plant to be applied. CONSTITUTION:At the time of power restoration after a certain power failure time, an MPU 52 in a sequence control device 38 recognizes the state of a keep relay 63 storing the state of the electromagnetic contact device 27 through a DI/DO 60 based on a power restoration processing program previously programmed in a ROM 58. On the other hand, the voltage of a capacitor 65 for storing power failure time is measured through an AI 61 and the power failure time is recognized from a capacitor discharge characteristic curve stored in a RAM 59 based on the measured result. When the power failure time is included within a prescribed time, the contact device 27 is turned to the state held before the power failure after power restoration, and when the power failure exceeds the prescribed time, the contact devices 27 are uniformly turned off after power restoration. Thus, the contact devices 27 can be accurately controlled.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22191387A JPS6465603A (en) | 1987-09-07 | 1987-09-07 | Highly integrated control panel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22191387A JPS6465603A (en) | 1987-09-07 | 1987-09-07 | Highly integrated control panel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6465603A true JPS6465603A (en) | 1989-03-10 |
Family
ID=16774120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22191387A Pending JPS6465603A (en) | 1987-09-07 | 1987-09-07 | Highly integrated control panel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6465603A (en) |
-
1987
- 1987-09-07 JP JP22191387A patent/JPS6465603A/en active Pending
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