Title:
SERVO CONTROLLER
Document Type and Number:
Japanese Patent JP3802692
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To generate no vibration in positioning response characteristics of the servo controller and to shorten the time of settlement at a target position.
SOLUTION: The servo controller equipped with control mechanisms 2 and 3 of a feedback compensation system is equipped with a digital filter 10 which has a transfer function corresponding to the control mechanisms of the feedback compensation system and inputs a position command, a subtracter 13 which performs subtraction between a feedback coordinate value C(z) as the output of the servo controller and the output value of the digital filter, a differential computing element 11 which differentiates the signal from the subtracter and outputs a speed response difference value, and an adder 1 which adds the speed response difference value from the differential computing element to the position command R(z). The servo controller applies the signal from the adder 1 to the control mechanisms of the feedback compensation system and selects characteristics of the digital filter 10 excluding the term of a sampling operator from the denominator of the transfer function of the whole servo controller.
Inventors:
Kazuo Watanabe
Akira Busujima
Akira Busujima
Application Number:
JP31615398A
Publication Date:
July 26, 2006
Filing Date:
November 06, 1998
Export Citation:
Assignee:
Hitachi Via Mechanics, Ltd.
International Classes:
G05B11/36; G05D3/12; G05B13/02; G05B21/02; (IPC1-7): G05D3/12; G05B11/36; G05B13/02
Domestic Patent References:
| JP61190602A | ||||
| JP63126003A | ||||
| JP4326401A | ||||
| JP7084611A | ||||
| JP8007506A | ||||
| JP2533474B2 | ||||
| JP4000001A |
Attorney, Agent or Firm:
Kenjiro Take
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