POSITIONING SERVOCONTROLLER - YASKAWA DENKI SEISAKUSHO KK

Title:

POSITIONING SERVOCONTROLLER

Document Type and Number:

WIPO Patent Application WO/2001/088649

Kind Code:

A1

Abstract:

A positioning servocontroller performs optimum positioning simply by adjusting control gain. A positioning servocontroller comprises speed feedforward control means (22) that uses a speed command corresponding to the sum of a position deviation and a first feedforward compensation; acceleration feedforward means (23) that uses an acceleration command corresponding to the sum of a speed deviation and a second feedforward compensation obtained by amplifying and differentiating the first feedforward compensation amount; and a torque amplifier (3) that drives an object based on an acceleration deviation as a torque command. The first feedforward gain and the second feedforward gain are derived from a function that uses the values of control gain as arguments.

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JP2749303	[Title of Invention] NC device for punch press
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Inventors:

TOMITA KOJI (JP)

Application Number:

PCT/JP2001/003907

Publication Date:

November 22, 2001

Filing Date:

May 10, 2001

Export Citation:

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Assignee:

YASKAWA DENKI SEISAKUSHO KK (JP)
TOMITA KOJI (JP)

International Classes:

G05B19/19; G05D3/12; (IPC1-7): G05D3/12

Foreign References:

JPS62212801A	1987-09-18
JPH08190433A	1996-07-23
JPH08140386A	1996-05-31
JPH1130946A	1999-02-02
JPH04276802A	1992-10-01
JPH01319810A	1989-12-26
JPS60256815A	1985-12-18
JPH0982050A	1997-03-28

Other References: