JPS5663602A - Start-stop operation command circuit - Google Patents
Start-stop operation command circuitInfo
- Publication number
- JPS5663602A JPS5663602A JP13921879A JP13921879A JPS5663602A JP S5663602 A JPS5663602 A JP S5663602A JP 13921879 A JP13921879 A JP 13921879A JP 13921879 A JP13921879 A JP 13921879A JP S5663602 A JPS5663602 A JP S5663602A
- Authority
- JP
- Japan
- Prior art keywords
- load
- automatic
- operation handle
- automatic position
- returned
- 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
- Control Of Positive-Displacement Pumps (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE: To make it possible to obtain a start-stop operating circuit which can start safely and exactly, by constituting the circuit so that the operation handle of the operation switch against the load can be returned to the automatic position by means of a spring.
CONSTITUTION: In case when the manual start operation of the load 9 is performed, the start command 8 is given to the load 9 by the command contact 13 of closing and it is started, by turning the operation handle 12 of the operation switch 3-N' to the start position. When an operator releases a hand from the operation handle 12, the operation handle 12 is returned to the automatic position by means of a spring, but the loads continues the operation. In this way, when the change-over switch 3-N' is not operated, the operation handle 12 is sure to be set to the automatic position, and therefore when the automatic start condition 7 exists, the load 9 is started, and if the heavy fault condition exists, the load 9 can be stopped. Thus, it is possible to prevent the automatic operation inability of the load caused by the fact that it is forgotten to return to the automatic position in case of the start-stop operation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13921879A JPS5663602A (en) | 1979-10-30 | 1979-10-30 | Start-stop operation command circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13921879A JPS5663602A (en) | 1979-10-30 | 1979-10-30 | Start-stop operation command circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5663602A true JPS5663602A (en) | 1981-05-30 |
Family
ID=15240260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13921879A Pending JPS5663602A (en) | 1979-10-30 | 1979-10-30 | Start-stop operation command circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5663602A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61126306U (en) * | 1985-01-24 | 1986-08-08 | ||
CN105041702A (en) * | 2015-08-14 | 2015-11-11 | 北京中科科仪股份有限公司 | Magnetic suspension molecular pump control method and system |
-
1979
- 1979-10-30 JP JP13921879A patent/JPS5663602A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61126306U (en) * | 1985-01-24 | 1986-08-08 | ||
CN105041702A (en) * | 2015-08-14 | 2015-11-11 | 北京中科科仪股份有限公司 | Magnetic suspension molecular pump control method and system |
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