Panasonic Intellectual Property Management Co., Ltd.

Akinobu Tomita

Yoshiaki Ikeuchi

Mitsutaka Okura

Hiroshi Fujiwara

Masashi Mishima

Embodiments provide a multiaxial motor control system for controlling motors for a plurality of shafts included in a multiaxial machine, and including a plurality of motor control devices and a controller. The controller is connected with the motor control devices, and transmits a command signal to the motor control devices. Each motor control device includes a communication controller, a rotation controller, and a drive unit, and drives a motor of a corresponding shaft. The communication controller transmits and receives signals including the command signal, and determine whether the command signal is received normally. The rotation controller generates a torque command to operate the corresponding motor. The drive unit generates a drive voltage for electrification to drive the corresponding motor in accordance with the torque command. When a motor control device detects failure in reception, the motor control device outputs a torque command for braking torque to stop the corresponding motor.

Multiaxial motor control system

A motor control system includes motor control devices and a controller. The controller generates and transmits a communication signal including an operation command to the respective motor control devices. The motor control devices include two motor control devices in a first group, each of which includes a data transceiver, a motor controller, a corrector, and a synchronous timing generator, and a motor control device in a second group. The data transceiver receives an operation command issued to the motor control device, and receives operation information in the motor control device in the second group. Based on the operation command, the motor controller generates a torque command signal. The corrector generates a torque correction signal based on the operation information, and corrects the torque command signal. The synchronous timing generator generates a timing signal that matches pieces of process timing of the motor controllers in the first group with each other.

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Osaka, Japan

Akinobu Tomita