JPS5745601A - Temperature controlling method for electric furnace - Google Patents

Temperature controlling method for electric furnace

Info

Publication number
JPS5745601A
JPS5745601A JP12149480A JP12149480A JPS5745601A JP S5745601 A JPS5745601 A JP S5745601A JP 12149480 A JP12149480 A JP 12149480A JP 12149480 A JP12149480 A JP 12149480A JP S5745601 A JPS5745601 A JP S5745601A
Authority
JP
Japan
Prior art keywords
temperature
electric power
deviation
detected
control
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
JP12149480A
Other languages
Japanese (ja)
Inventor
Yoshiaki Naito
Tetsuo Nakagawa
Toshio Hayashinaka
Masaharu Niizawa
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP12149480A priority Critical patent/JPS5745601A/en
Publication of JPS5745601A publication Critical patent/JPS5745601A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)
  • Control Of Temperature (AREA)

Abstract

PURPOSE:To assure the application with broad temperature range and to avoid electric shock at switchig, by correcting the deviation between a temperature and an electric power can be zero at the switchig of electric power control and temperature control. CONSTITUTION:The temperature range at temperature increase/decrease is split into temperature control and electric power control, and th deviation between temperatures or powers is detected at switching and corrected so that it is zero. For example, at a low temperature range, a thyristor 8 is controled with a PID controller 3 to supply power to an electric furnace 13, and the temperature of the furnace reaches a given value, which is detected by a temperature sensor 14 and an electric power-temperature switch 16 is operated. In this case, a switching signal operates a signal storage device 6 to store the output signal of the PID controller 3 and a program setter 1 changes over the system from electric power to temperature control. The deviation at this time is detected at deviation detectors 4, 5 and a fast feed signal circuit can be switched so that the set index of a controller coincides with a moving pointer.
JP12149480A 1980-09-02 1980-09-02 Temperature controlling method for electric furnace Pending JPS5745601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12149480A JPS5745601A (en) 1980-09-02 1980-09-02 Temperature controlling method for electric furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12149480A JPS5745601A (en) 1980-09-02 1980-09-02 Temperature controlling method for electric furnace

Publications (1)

Publication Number Publication Date
JPS5745601A true JPS5745601A (en) 1982-03-15

Family

ID=14812551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12149480A Pending JPS5745601A (en) 1980-09-02 1980-09-02 Temperature controlling method for electric furnace

Country Status (1)

Country Link
JP (1) JPS5745601A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040033367A (en) * 2002-10-14 2004-04-28 위성동 Apparatus and method for driving as regards forward operation of deviation of digital temperature control system
KR100447444B1 (en) * 2002-07-10 2004-09-04 학교법인 송원학원 Running gear and the method about deviation stopped motion of a digital temperature control system (SPC50 Et1)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100447444B1 (en) * 2002-07-10 2004-09-04 학교법인 송원학원 Running gear and the method about deviation stopped motion of a digital temperature control system (SPC50 Et1)
KR20040033367A (en) * 2002-10-14 2004-04-28 위성동 Apparatus and method for driving as regards forward operation of deviation of digital temperature control system

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