JPS55166701A - Control system - Google Patents

Control system

Info

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
Application number
JP7535779A
Other languages
Japanese (ja)
Inventor
Satoru Koide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP7535779A priority Critical patent/JPS55166701A/en
Publication of JPS55166701A publication Critical patent/JPS55166701A/en
Pending legal-status Critical Current

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
JP7535779A 1979-06-14 1979-06-14 Control system Pending JPS55166701A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS454474Y1 (en) * 1966-09-21 1970-02-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS454474Y1 (en) * 1966-09-21 1970-02-28

Cited By (3)

* Cited by examiner, † Cited by third party
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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