JPS5582304A - Monitor unit for sequence delay preventive maintenance - Google Patents
Monitor unit for sequence delay preventive maintenanceInfo
- Publication number
- JPS5582304A JPS5582304A JP15818878A JP15818878A JPS5582304A JP S5582304 A JPS5582304 A JP S5582304A JP 15818878 A JP15818878 A JP 15818878A JP 15818878 A JP15818878 A JP 15818878A JP S5582304 A JPS5582304 A JP S5582304A
- Authority
- JP
- Japan
- Prior art keywords
- satisfied
- fixed period
- conditions
- interlock conditions
- generator
- 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 And Monitoring For Control Systems (AREA)
Abstract
PURPOSE:To make it possible to detect previously a forecasted sequence delay by monitoring whether a stop circuit is normal or not and whether a start circuit is normal or not in the operation time and the stop time respectively at a fixed period. CONSTITUTION:Assuming that an output command is given to a sequence controller, for example, in a water-wheel generator, an entrance valve start command is issued under interlock conditions A-D satisfied. Next, when feedback condition G indicating that the entrance valve opens fully is returned, a start command is issued under this condition G and interlock conditions E and F satisfied. Assuming that the generator stops, interlock conditions of a start circuit are checked for normalcy at every fixed period by a program, and a condition indicator lamp and an operation state indicator lamp are lit on a display equipment to issue alarm if conditions are not satisfied. Interlock conditions of a stop circuit are checked at every fixed period in the operation time of the generator also. As a result, preventive maintenance for sequence delay can be performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15818878A JPS5582304A (en) | 1978-12-18 | 1978-12-18 | Monitor unit for sequence delay preventive maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15818878A JPS5582304A (en) | 1978-12-18 | 1978-12-18 | Monitor unit for sequence delay preventive maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5582304A true JPS5582304A (en) | 1980-06-21 |
Family
ID=15666184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15818878A Pending JPS5582304A (en) | 1978-12-18 | 1978-12-18 | Monitor unit for sequence delay preventive maintenance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5582304A (en) |
-
1978
- 1978-12-18 JP JP15818878A patent/JPS5582304A/en active Pending
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