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US 9,836,040 B2Granted
Motor control device, motor control system and motor control method
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsTadashi Okubo, Isamu Matsumura, Go Yamazaki
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Abstract
A motor control device includes circuitry which reads a command value in synchronization with a control period, reads an output of an encoder connected to a motor, controls an output current to the motor based on the command value and the output of the encoder, and offsets a timing for reading the output of the encoder with respect to a timing for reading the command value.
Claims20
A motor control device, comprising:
- a first detecting circuit configured to detect a command value in synchronization with a control period,
- a second detecting circuit configured to detect an output of an encoder connected to a motor,
- processing circuitry configured to control an output current to the motor based on the command value and the output of the encoder, and
- an offset circuit configured to offset a timing for reading the output of the encoder with respect to a timing for reading the command value.
1 more element
A motor control system, comprising:
- a motor;
- a motor control device connected to the motor;
- and
- a controller connected to the motor control device and comprising first circuitry configured to output an operation command with respect to the motor control device,
- wherein the motor control device comprises
- a first detecting circuit configured to detect a command value in synchronization with a control period, a second detecting circuit configured to detect an output of an encoder connected to the motor, processing circuitry configured to control an output current to the motor based on the command value and the output of the encoder, and an offset circuit configured to offset a timing for reading the output of the encoder with respect to a timing for reading the command value.
3 more elements
A motor control method, comprising:
- detecting, by a first detecting circuit, a command value in synchronization with a control period;
- detecting, by a second detecting circuit, an output of an encoder connected to a motor;
- controlling, by processing circuitry, an output current to the motor based on the command value and the output of the encoder;
- and
- offsetting, by an offset circuit, a timing for reading the output of the encoder with respect to a timing for reading the command value.
2 more elements
Dependencies are inferred from the claim text.