CONTROL METHOD OF ROTATION PROCESSING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a control method of a rotation processing device which contributes to energy saving.SOLUTION: Control of a drive mechanism of a motor or the like that rotates a rotation processing tool such as a grindstone is performed by dividing a time zone with no load into an energization stop time which makes the rotation processing tool rotate inertially by stopping energization to the drive mechanism and a start-up time which energizes the drive mechanism so that the rotation processing tool is returned to a steady rotation speed at a time point where processing to a next work starts. This start-up time is shortened in a range where an instantaneous maximum current value that flows through the drive mechanism does not exceed a threshold.