Patent ID: 9645554
Date: 2017-05-09
CPC Classifications: G05B

Claim:
1. A control parameter setting method for setting a frequency band to be removed for a damping filter provided in a positioning apparatus controlling a drive motor of a rotary table device, the rotary table device including a base, a table for placing an object thereon, the table being rotatably held by the base, and the drive motor rotating the table with respect to the base, the control parameter setting method comprising: calculating a first resonance frequency ω where J r is an inertia of the rotor of the drive motor, J t is an inertia of the table, J j is an inertia of the object, h is an inertia of the base, J s is an inertia of the stator of the drive motor, K j is a torsional rigidity of the object, and K s is a torsional rigidity of the stator of the drive motor; and setting the frequency band to be removed for a first damping filter provided in the positioning apparatus based on the calculated first resonance frequency ω