| US 7,459,873 B2 | ||
| Method for extracting maximum gain of servo controller | ||
| Kazuo Sato, Fukuoka (Japan) | ||
| Assigned to Kabushiki Kaisha Yaskawa Denki, Fukuoka (Japan) | ||
| Appl. No. 10/567,085 PCT Filed Jun. 28, 2004, PCT No. PCT/JP2004/009102 § 371(c)(1), (2), (4) Date Feb. 03, 2006, PCT Pub. No. WO2005/013018, PCT Pub. Date Feb. 10, 2005. |
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| Claims priority of application No. 2003-286708 (JP), filed on Aug. 05, 2003. | ||
| Prior Publication US 2008/0143287 A1, Jun. 19, 2008 | ||
| Int. Cl. G05B 11/38 (2006.01) | ||
| U.S. Cl. 318—619 [318/623; 318/632] | 1 Claim |

| 1. A method for extracting a maximum gain of a servo controller for driving a servo motor comprising the steps of:
applying a simulated disturbance torque to a torque command by a vibrating unit while a control gain is raised, and detecting
the vibration of a control system by a vibration detecting unit;
repeating a process for applying the simulated disturbance torque while the control gain is raised until the vibration of
a prescribed level is detected, and
setting the control gain when the vibration detecting unit detects the vibration exceeding the prescribed level as a maximum
gain.
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