Numerical control device

Details Numerical control device Numerical control device

1989-03-01

1990-10-02

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318603, 318561, 318571, 318630, G05B 1900

Patent

active

049610341

ABSTRACT:
A numerical control device comprising a lost motion correction data calculating device having a table/function which represents the motor current of a servo motor, in a servo mechanism for servo-controlling a mechanical movable part. The motor current is detected at a given time instant, and the corresponding amount of lost motion correction is then calculated. The position error caused by the lost motion can be corrected with high accuracy.

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