JPS5475054A - Power on-off control circuit - Google Patents
Power on-off control circuitInfo
- Publication number
- JPS5475054A JPS5475054A JP14164977A JP14164977A JPS5475054A JP S5475054 A JPS5475054 A JP S5475054A JP 14164977 A JP14164977 A JP 14164977A JP 14164977 A JP14164977 A JP 14164977A JP S5475054 A JPS5475054 A JP S5475054A
- Authority
- JP
- Japan
- Prior art keywords
- power
- switch
- self
- manual switch
- contact
- 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.)
- Granted
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
PURPOSE: To ensure a safety of equipment, with a condition before power interruption maintainable even for an interruption of service, by applying a manual switch of self-resetting type in the power on-off control circuit, to store a state of on-off in memory to the above with self-holding relays used.
CONSTITUTION: A power, fed from a commercial power source 17 to a power unit 16, is on-off operated by a manual switch 15 and a remote power off signal generating switch 14. The manual switch in the power on-off control circit is normally making a contact in a direction as shown in the drawing, however, with a self-resetting type switch applied that makes a contact to an oppositely facing contact by manually pushing the switch and returns to the former state of position again by a release of hand from the switch. And with a combination use made for self-holding relays 1 to 4, reclosing, after disconnection of power by a remote power off signal, will be operated only by pushing the manual switch 15.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52141649A JPS6030187B2 (en) | 1977-11-28 | 1977-11-28 | Power on/off control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52141649A JPS6030187B2 (en) | 1977-11-28 | 1977-11-28 | Power on/off control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5475054A true JPS5475054A (en) | 1979-06-15 |
JPS6030187B2 JPS6030187B2 (en) | 1985-07-15 |
Family
ID=15296948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52141649A Expired JPS6030187B2 (en) | 1977-11-28 | 1977-11-28 | Power on/off control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6030187B2 (en) |
-
1977
- 1977-11-28 JP JP52141649A patent/JPS6030187B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6030187B2 (en) | 1985-07-15 |
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