JPS6479804A - Control method based on control meter - Google Patents

Control method based on control meter

Info

Publication number
JPS6479804A
JPS6479804A JP23690187A JP23690187A JPS6479804A JP S6479804 A JPS6479804 A JP S6479804A JP 23690187 A JP23690187 A JP 23690187A JP 23690187 A JP23690187 A JP 23690187A JP S6479804 A JPS6479804 A JP S6479804A
Authority
JP
Japan
Prior art keywords
value
time constant
integration time
range determined
prescribed range
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
JP23690187A
Other languages
Japanese (ja)
Inventor
Tadashi Azegami
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP23690187A priority Critical patent/JPS6479804A/en
Publication of JPS6479804A publication Critical patent/JPS6479804A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To remove overshooting by setting up an integration time constant to the prescribed times of a previously set value when a manipulated variable is included within a prescribed range determined by upper and lower limit values and a proprotional operation value is outside a prescribed range determined by a manual reset value, and executing integrating operation. CONSTITUTION:When a manipulated variable is included with a prescribed range determined by the upper and lower limit value of the manipulated variable and a proportional operation value is outside a prescribed range determined by a manual reset value, a previously set integration time constant is multiplied by prescribed times to execute integrating operation. Since a deviation between a set value and a process variable is reduced without fail by the integrating operation setting up it integration time constant to a large value, the deviation is not left, and when the deviation is a comparatively large, the integration time constant is increased to execute weak integrating operation, so that no overshooting is generated.
JP23690187A 1987-09-21 1987-09-21 Control method based on control meter Pending JPS6479804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23690187A JPS6479804A (en) 1987-09-21 1987-09-21 Control method based on control meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23690187A JPS6479804A (en) 1987-09-21 1987-09-21 Control method based on control meter

Publications (1)

Publication Number Publication Date
JPS6479804A true JPS6479804A (en) 1989-03-24

Family

ID=17007434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23690187A Pending JPS6479804A (en) 1987-09-21 1987-09-21 Control method based on control meter

Country Status (1)

Country Link
JP (1) JPS6479804A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009122950A1 (en) * 2008-03-31 2009-10-08 株式会社小松製作所 Controller of hydraulically driven fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009122950A1 (en) * 2008-03-31 2009-10-08 株式会社小松製作所 Controller of hydraulically driven fan
JP2009243389A (en) * 2008-03-31 2009-10-22 Komatsu Ltd Control device of hydraulically driven fan
US8459959B2 (en) 2008-03-31 2013-06-11 Komatsu Ltd. Control device of hydraulically driven fan

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