Motor control device for implementing power failure protection of machine tool
AssigneeFanuc Corporation
InventorDaisuke TAJIMA
Life of this patent
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Abstract
A control device for a machine tool including a feed shaft motor for driving a feed shaft and a main shaft motor for driving a main shaft is provided with: a determination unit determining whether an operation of the feed shaft motor satisfies a predetermined determination condition; and an excitation command unit outputting an excitation current command to output excitation current larger than excitation current instructed by a master control unit to the main shaft motor, when the determination unit determines that the predetermined determination condition is satisfied.
Claims6
A control device for a machine tool including a feed shaft motor for driving a feed shaft and a main shaft motor for driving a main shaft, the control device comprising:
- a determination unit determining whether an operation of the feed shaft motor satisfies a predetermined determination condition;
- and
- an excitation command unit outputting an excitation current command to output excitation current larger than excitation current instructed by a master control unit to the main shaft motor, when the determination unit determines that the predetermined determination condition is satisfied.
Dependencies are inferred from the claim text.