| 摘要 |
PROBLEM TO BE SOLVED: To provide a servo controller capable of reducing non-periodic synchronization error yielding between two axes, in a servo controller for synchronously controlling two axes.SOLUTION: A servo controller includes: a first position feedback acquisition part; a second position feedback acquisition part; a conversion part for converting acquired first axis position feedback to an equivalent value of second axis position feedback, using a synchronization ratio; a synchronization error calculation part for calculating a synchronization error, which is a difference between the converted first axis position feedback and the second axis position feedback; a position deviation calculation part for calculating a second axis position deviation, which is a difference between a second axis position command and the second axis position feedback; a filter processing part for extracting a predetermined frequency domain component using a difference between the synchronization error and the second axis position deviation as input; and a position deviation correction part for correcting the second axis position deviation using output of the filter processing part. |
