JPS5783801A - Shortest control system for process control - Google Patents

Shortest control system for process control

Info

Publication number
JPS5783801A
JPS5783801A JP15821980A JP15821980A JPS5783801A JP S5783801 A JPS5783801 A JP S5783801A JP 15821980 A JP15821980 A JP 15821980A JP 15821980 A JP15821980 A JP 15821980A JP S5783801 A JPS5783801 A JP S5783801A
Authority
JP
Japan
Prior art keywords
control
circuit
deviation
valve
supplied
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
JP15821980A
Other languages
Japanese (ja)
Inventor
Tomohiro Takigawa
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Manufacturing 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP15821980A priority Critical patent/JPS5783801A/en
Publication of JPS5783801A publication Critical patent/JPS5783801A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B5/00Anti-hunting arrangements
    • G05B5/01Anti-hunting arrangements electric

Landscapes

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

Abstract

PURPOSE:To eliminate the control delay time, by supplying a control deviation to a delay circuit when control conditions reach restricted those and inputting the addition signal of the output of the delay circuit and the control deviation to a controller, in respect to process control. CONSTITUTION:A work quantity is supplied to a valve 6 from a PID operating circuit 1 as a controller; and when the valve 6 reaches the saturation state such as full opening or full closing, a limit switch 7 is operated. A contrl signal M is generated by the operation of the switch 7 to connect a contact C of a changeover switch 4 to the side of a contact (a), and a quantity of deviation which is the difference between a target value SV and an actual value PV is supplied to an adder 2 through a delay circuit 3. This quantity of deviation and the quantity of deviation delayed by the circuit 3 are added in the adder 2, and the result is supplied to the circuit 1. A deficiency of the control deviation is stored in the circuit 3 temporarily, and an output signal is outputted from the circuit 1 to compensate the deficiency of the control quantity, and the valve 6 is controlled, and thus, the control of the valve for start-up is performed in the shortest time.
JP15821980A 1980-11-12 1980-11-12 Shortest control system for process control Pending JPS5783801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15821980A JPS5783801A (en) 1980-11-12 1980-11-12 Shortest control system for process control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15821980A JPS5783801A (en) 1980-11-12 1980-11-12 Shortest control system for process control

Publications (1)

Publication Number Publication Date
JPS5783801A true JPS5783801A (en) 1982-05-25

Family

ID=15666878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15821980A Pending JPS5783801A (en) 1980-11-12 1980-11-12 Shortest control system for process control

Country Status (1)

Country Link
JP (1) JPS5783801A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002211A1 (en) * 1993-07-05 1995-01-19 Siemens Aktiengesellschaft Controlling device
JPH10133702A (en) * 1996-10-31 1998-05-22 Yamatake Honeywell Co Ltd PID controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002211A1 (en) * 1993-07-05 1995-01-19 Siemens Aktiengesellschaft Controlling device
JPH10133702A (en) * 1996-10-31 1998-05-22 Yamatake Honeywell Co Ltd PID controller

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