NUMERICAL CONTROLLER - MITSUBISHI ELECTRIC CORP

Title:

NUMERICAL CONTROLLER

Document Type and Number:

Japanese Patent JPS6069711

Kind Code:

A

Abstract:

PURPOSE:To improve positioning precision and servo rigidity without providing an integral element by bearing a nonlinear relation between the output of a D-A converter and a position error. CONSTITUTION:A computing element 10 inputs the output of an interpolator 11 and the output of a counter 9 at every unit time to calculate data to be outputted to a D-A converter on the basis of a constant POINT for determining an inflection point and a constant GAIN for determining the gain up to the inflection point. The interpolator 11 outputs the distance of movement in the unit time. An analog-converted position error is inputted to an amplifier 4 to move a motor 5, feed screw 6, and machine moving part 9. Further, the output varies according to the movement of a position detector 7, and the output of a counter 9 varies to reduce the position error. The output of a D-A converter 3 is increased almost where the position error is zero to form an accurate servo system without providing the amplifier 4 with an integral element.

Inventors:

KITATSUME TSUGIO

Application Number:

JP17752183A

Publication Date:

April 20, 1985

Filing Date:

September 26, 1983

Export Citation:

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