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US 6,822,414 B2Granted
Motor controller
AssigneeFanuc Corporation
InventorsYuuki Morita, Shinichi Kono, Takahiro Akiyama
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AssigneeFanuc Corporation
InventorsYuuki Morita, Shinichi Kono, Takahiro Akiyama
Estimating the term…
A motor controller capable of obtaining information on offsets, amplitudes and a phase difference of analog feedback signals from encoders without using special measuring device. The analog feedback signals from the encoders are A/D converted and the offsets, the amplitudes and the phase difference of A-phase and B-phase analog feedback signals are obtained based on the converted digital signals by an arithmetic section. The obtained offsets, amplitudes and phase difference are displayed by a display section of the motor controller and/or a display section of a numerical controller as a host controller. Further, the obtained offsets and amplitudes are compared with respective reference values for determining acceptability of the feedback signals from the encoders and the results of the comparison is displayed by the display section and/or the display section of the numerical controller.
A motor controller for performing control of position or velocity of a movable member mechanically connected with a motor using analog feedback signals from encoders for detecting rotational position or velocity of the motor, or position or velocity of the movable member, wherein said motor controller includes means for automatically A/D converting, determining and displaying information on at least one of amplitudes, offsets and a phase difference of the analog feedback signals on a digital display section of the motor controller or a host controller connected with the motor controller.
A motor controller for performing control of position or velocity of a movable member mechanically connected with a motor using analog feedback signals from encoders for detecting rotational position or velocity of the motor, or position or velocity of the movable member, wherein said motor controller includes means for automatically A/D converting, determining and displaying results of comparison of amplitudes and/or offsets of the analog feedback signals with respective predetermined values on a digital display section of the motor controller or a host controller connected with the motor controller.
A motor controller for performing control of position or velocity of a movable member mechanically connected with a motor using analog feedback signals from encoders for detecting rotational position or velocity of the motor, or position or velocity of the movable member, said motor controller comprising:
A motor controller for performing control of position or velocity of a movable member mechanically connected with a motor using analog feedback signals from encoders for detecting rotational position or velocity of the motor, or position or velocity of the movable member, said motor controller comprising:
An apparatus, comprising:
An apparatus, comprising:
A method for controlling position or velocity of a movable member mechanically connected with a motor using analog feedback signals from encoders for detecting rotational position or velocity of the motor, or position or velocity of the movable member, the method comprising:
A method for controlling position or velocity of a movable member mechanically connected with a motor using analog feedback signals from encoders for detecting rotational position or velocity of the motor, or position or velocity of the movable member, the method comprising:
A motor controller for controlling a movable member mechanically connected to a motor using a plurality of analog feedback signals, comprising:
A motor controller for controlling a movable member mechanically connected to a motor using a plurality of analog feedback signals, comprising:
Dependencies are inferred from the claim text.