Servo control system

Abstract

A servo control system according to one embodiment of the present disclosure controls a servomotor, and comprises: a servo amplifier that supplies the servomotor with a pulse-width-modulated drive current, and that can change pulse frequencies; and a servo control device that gives the servo amplifier an instruction on the target speed or the target position of the servomotor and the pulse frequencies. The servo control device has: a target instruction unit that gives an instruction on the target speed or the target position; a power consumption calculation unit that calculates, on the basis of information on the servomotor and/or the servo amplifier, the total power consumption of the servomotor and the servo amplifier at each of a plurality of set frequencies set in advance as the pulse frequencies; and a frequency instruction unit that gives the servo amplifier an instruction to perform the pulse width modulation at a set frequency, among the plurality of set frequencies, at which the total power consumption becomes minimum.

Dependencies are inferred from the claim text.