JPS56155402A - Operation control system at changing over of number of apparatus operating device - Google Patents

Operation control system at changing over of number of apparatus operating device

Info

Publication number
JPS56155402A
JPS56155402A JP5868980A JP5868980A JPS56155402A JP S56155402 A JPS56155402 A JP S56155402A JP 5868980 A JP5868980 A JP 5868980A JP 5868980 A JP5868980 A JP 5868980A JP S56155402 A JPS56155402 A JP S56155402A
Authority
JP
Japan
Prior art keywords
operator
controller
speed controller
control system
devices
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
JP5868980A
Other languages
Japanese (ja)
Inventor
Muneharu Shirako
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
Fuji Facom Corp
Original Assignee
Fuji Electric Co Ltd
Fuji Facom 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 Fuji Electric Co Ltd, Fuji Facom Corp filed Critical Fuji Electric Co Ltd
Priority to JP5868980A priority Critical patent/JPS56155402A/en
Publication of JPS56155402A publication Critical patent/JPS56155402A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
    • G05D16/2073—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source with a plurality of pressure sources

Landscapes

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

Abstract

PURPOSE:To prevent the occurrence of disturbances in the control characteristics of controlled variable at the time of increasing or decreasing the number of operating devices of pumps by providing an advance operator and a delay operator effective only at the starting and stopping of pumps between the two controllers to be cascade-connected. CONSTITUTION:The output signal of a pressure controller 3 is connected as a speed set value to a speed controller 1 via an advance operator 6, and to a speed controller 2 via a delay operator 7, respectively. The operator 6 can be connected and disconnected by change-over circuits 21, 22 and the operator 7 by change-over circuits 23, 24. It is only for a fixed time after the number of devices is decreased when the operator 6 is connected and at times other than this, it is hold disconnected and the pressure controller 3 and the speed controller 1 are directly coupled. It is only for a fixed time after addition of the number of devices when the operator 7 is connected, and at times other than this, the pressure controller 3 and the speed controller 2 are directly connected.
JP5868980A 1980-05-06 1980-05-06 Operation control system at changing over of number of apparatus operating device Pending JPS56155402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5868980A JPS56155402A (en) 1980-05-06 1980-05-06 Operation control system at changing over of number of apparatus operating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5868980A JPS56155402A (en) 1980-05-06 1980-05-06 Operation control system at changing over of number of apparatus operating device

Publications (1)

Publication Number Publication Date
JPS56155402A true JPS56155402A (en) 1981-12-01

Family

ID=13091509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5868980A Pending JPS56155402A (en) 1980-05-06 1980-05-06 Operation control system at changing over of number of apparatus operating device

Country Status (1)

Country Link
JP (1) JPS56155402A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58106467U (en) * 1982-01-14 1983-07-20 株式会社クボタ automatic water supply device
JPS58106466U (en) * 1982-01-14 1983-07-20 株式会社クボタ automatic water supply device
JPS58106465U (en) * 1982-01-14 1983-07-20 株式会社クボタ automatic water supply device
WO1999058856A1 (en) * 1998-05-08 1999-11-18 Celanese International Corporation Control system for multi-pump operation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58106467U (en) * 1982-01-14 1983-07-20 株式会社クボタ automatic water supply device
JPS58106466U (en) * 1982-01-14 1983-07-20 株式会社クボタ automatic water supply device
JPS58106465U (en) * 1982-01-14 1983-07-20 株式会社クボタ automatic water supply device
WO1999058856A1 (en) * 1998-05-08 1999-11-18 Celanese International Corporation Control system for multi-pump operation
CZ302589B6 (en) * 1998-05-08 2011-07-27 Celanese International Corporation Control system and method of controlling a measured variable

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