JPS55166701A - Control system - Google Patents
Control systemInfo
- Publication number
- JPS55166701A JPS55166701A JP7535779A JP7535779A JPS55166701A JP S55166701 A JPS55166701 A JP S55166701A JP 7535779 A JP7535779 A JP 7535779A JP 7535779 A JP7535779 A JP 7535779A JP S55166701 A JPS55166701 A JP S55166701A
- Authority
- JP
- Japan
- Prior art keywords
- microprocessor
- fault
- gate
- program
- input
- 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 High-Frequency Heating Circuits (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE: To prevent a fuse from blowing due to a fault of a microprocessor itself of a food cooking device, etc. by controlling electric power feed to a control load by the output of an AND circuit for AND between control signals output exclusively each other.
CONSTITUTION: In case that "1"-level signals are input to terminals 10a and 10b of microprocessor 10 at the same time due to a fault of microprocessor 10 itself or malfunction in terms of the progress of a program, AND gate 15 outputs the "1"-level signal on the basis of AND between the both. As a result, the 3rd transistor 16 turns OFF and a voltage at terminal 19 never appears at the 1st and the 2nd relay coils 6b and 8b, so that since excitation becomes impossible, the 1st and the 2nd relay switches 6a and 8a will not close. Consequently, no cooking is carried out by a heater with a microwave. Meanwhile, the "1"-level signal of AND gate 15 is input to reset terminal 10c of the microprocessor as well to initialize the program.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7535779A JPS55166701A (en) | 1979-06-14 | 1979-06-14 | Control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7535779A JPS55166701A (en) | 1979-06-14 | 1979-06-14 | Control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55166701A true JPS55166701A (en) | 1980-12-26 |
Family
ID=13573888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7535779A Pending JPS55166701A (en) | 1979-06-14 | 1979-06-14 | Control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55166701A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919654A (en) * | 1982-07-22 | 1984-02-01 | Amada Co Ltd | Power supply cutoff method of nc machine tool under emergency |
JPH01113703U (en) * | 1988-01-28 | 1989-07-31 | ||
US8405945B2 (en) | 2010-01-14 | 2013-03-26 | International Business Machines Corporation | Power distribution unit branch protection |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS454474Y1 (en) * | 1966-09-21 | 1970-02-28 |
-
1979
- 1979-06-14 JP JP7535779A patent/JPS55166701A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS454474Y1 (en) * | 1966-09-21 | 1970-02-28 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919654A (en) * | 1982-07-22 | 1984-02-01 | Amada Co Ltd | Power supply cutoff method of nc machine tool under emergency |
JPH01113703U (en) * | 1988-01-28 | 1989-07-31 | ||
US8405945B2 (en) | 2010-01-14 | 2013-03-26 | International Business Machines Corporation | Power distribution unit branch protection |
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