Controller for automatic machine
AssigneeFanuc Corporation
InventorsAtsushi Watanabe, Tetsuaki Kato
Life of this patent
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Abstract
An automatic machine has a plurality of axes driven by servo motors. The controller for controlling this automatic machine confirms that a compulsory power disconnection mode is engaged, releases the brakes and starts power supply to servo amplifiers. At a prescribed time after power supply to said servo amplifiers has started, the power supply to the servo amplifiers is halted compulsorily. Alternatively, the power supply to the servo amplifiers is halted compulsorily at a prescribed time after power supply to the servo amplifiers has started and after initial movement commands have been input to the servo controllers.
Claims7
A controller for an automatic machine having a plurality of axes each driven by a respective one of a plurality of servo motors each having a position detector, comprising:
- a plurality of servo controllers receiving positional information fed back from respective ones of the position detectors;
- a plurality of servo amplifiers supplying power to respective ones of said servo motors;
- and
- a compulsory power disconnector compulsorily disconnecting a power supply to said servo amplifiers at a prescribed time after the power supply to said servo amplifiers has started and after movement commands have been input to respective ones of said servo controllers.
A controller for an automatic machine having a plurality of axes each driven by a respective one of a plurality of servo motors, each having a position detector, comprising:
- a plurality of servo controllers receiving positional information fed back from respective one of the position detectors;
- a plurality of servo amplifiers supplying power to respective ones of said servo motors;
- and
- a compulsory power disconnector compulsorily disconnecting a power supply to said servo amplifiers at a prescribed time after power supply to said servo amplifiers has started.
Dependencies are inferred from the claim text.