MOTOR CONTROL APPARATUS
First Claim
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1. A motor control apparatus comprising:
- a position controller that generates a velocity command on the basis of a position difference between a position command and a position feedback signal;
a switcher that switches the position feedback signal to be input to the position controller from one of a first position signal detected by a first position detector and a second position signal detected by a second position detector to the other; and
a phase compensator that compensates for a phase delay of the first position signal or the second position signal switched by the switcher.
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Abstract
A motor control apparatus includes a position controller that generates a velocity command on the basis of a position difference between a position command and a position feedback signal, a switcher that switches the position feedback signal to be input to the position controller from a first position signal detected by a laser interferometer to a second position signal detected by a position sensor, and a phase compensator that compensates for a phase delay of the second position signal switched by the switcher relative to the first position signal.
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Citations
7 Claims
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1. A motor control apparatus comprising:
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a position controller that generates a velocity command on the basis of a position difference between a position command and a position feedback signal; a switcher that switches the position feedback signal to be input to the position controller from one of a first position signal detected by a first position detector and a second position signal detected by a second position detector to the other; and a phase compensator that compensates for a phase delay of the first position signal or the second position signal switched by the switcher. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A motor control apparatus comprising:
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position control means for generating a velocity command on the basis of a position difference between a position command and a position feedback signal; switching means for switching the position feedback signal to be input to the position control means from one of a first position signal detected by a first position detector and a second position signal detected by a second position detector to the other; and phase compensation means for compensating for a phase delay of the first position signal or the second position signal switched by the switching means.
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Specification