Servomotor speed control in a positioning device

Details Servomotor speed control in a positioning device Servomotor speed control in a positioning device

H - Electricity

02

P

318/23, 318/25,

H02P 3/06 (2006.01) G05B 19/416 (2006.01) H02K 24/00 (2006.01)

Patent

CA 1219901

ABSTRACT OF THE DISCLOSURE A servomotor speed control system includes a ROM table which stores only one minimum distance corres- ponding to each motor speed. When the minimum distance corresponding to the current motor speed becomes shorter than the current distance from the current motor position to a positioning target point, the instructed speed is reduced to decelerate the servomotor rotation. In a pre- ferred form, the unit of the distance is identical with an interval of a position indicating signal developed from a rotary encoder associated with the servomotor.

458874

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