Patent ID: 9348330
Filing Date: 2016-05-24
CPC Classification: G05B

Claim Text:
1. A method of adjusting the position of mechanical origin of a machine having a moving part that is driven by a servo motor equipped with a position detector, comprising the steps of: moving said moving part in a predetermined direction to position said moving part at the position of mechanical origin; reading a value of a reference counter that counts the value detected by said position detector and that is preset to a determined value for every rotation of the servo motor, at a moment when said moving part is positioned; reading a counter capacity of said reference counter; and calculating the amount of adjusting said position of mechanical origin based on the value of the reference counter of when said moving part is positioned and on the capacity of the reference counter, wherein of the value of the reference counter is smaller than one-half the counter capacity, the amount of adjusting the position of origin is set to the value of the reference counter, and if the value of the reference counter is not smaller than one-half the counter capacity, a deviation obtained by subtracting the counter capacity from the value of the reference counter is set as the amount of adjusting the position of origin.