JPS5458812A - Power failure restart circuit - Google Patents
Power failure restart circuitInfo
- Publication number
- JPS5458812A JPS5458812A JP12515177A JP12515177A JPS5458812A JP S5458812 A JPS5458812 A JP S5458812A JP 12515177 A JP12515177 A JP 12515177A JP 12515177 A JP12515177 A JP 12515177A JP S5458812 A JPS5458812 A JP S5458812A
- Authority
- JP
- Japan
- Prior art keywords
- timer
- excited
- power failure
- preset time
- 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.)
- Pending
Links
Landscapes
- Motor And Converter Starters (AREA)
Abstract
PURPOSE: To improve reliability by constituting a circuit by combining a timer without using an automatic restart relay be means of capacitor charge and discharge when a motor is restarted after power failure is recovered.
CONSTITUTION: An electromagnetic conractor CT is excited through the contact TR2A of a timer TR2 by closing an operation switch CS1 at start and a motor starts its operation. The electromagnetic contactor CT, timers TR1, TR2, and TR3 and auxiliary relay Z are de-excited the contact TR1A of the timer TR1 closes after the preset time. If power failure is recovered within this preset time, the auxiliary relay Z operates and a contact ZA2 closes. Accordingly the timer TR1 is re-excited and the timer TR2 operates after its preset time. The electromagne ticcontactor CT is excited and restart operation occurs. As a result, reliability can be imprvoed by timer structure only
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12515177A JPS5458812A (en) | 1977-10-20 | 1977-10-20 | Power failure restart circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12515177A JPS5458812A (en) | 1977-10-20 | 1977-10-20 | Power failure restart circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5458812A true JPS5458812A (en) | 1979-05-11 |
Family
ID=14903123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12515177A Pending JPS5458812A (en) | 1977-10-20 | 1977-10-20 | Power failure restart circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5458812A (en) |
-
1977
- 1977-10-20 JP JP12515177A patent/JPS5458812A/en active Pending
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