Nidec Sankyo Corporation

Jun Otsuji

Akihiro Ito

Hirokazu Watanabe

Hirokatsu Okumura

Tetsuya Inomata

Hideyuki Odagiri

A robot system includes a robot controller and an object robot including a first storage part storing a hardware identifier, individual discrimination data, and device specific data including an individual difference parameter. The same hardware identifier is assigned to the object robot having the same mechanism. The robot controller includes a second storage part storing common configuration information corresponding to the hardware identifier and the individual discrimination data and the individual difference parameter of the object robot, and a control part configured, in a case that the hardware identifier corresponding to the common configuration information stored in the second storage part and the hardware identifier assigned to the object robot are collated and matched with each other, to create hardware definition information of the object robot based on the common configuration information stored in the second storage part and the individual difference parameter read from the first storage part.

Robot system

A robot system may include a robot controller; and a target robot. The target robot may include a first memory to store device specific data including individual identification data; and an individual difference parameter unique to the target robot. The robot controller may include a second memory structured to store the individual identification data and the individual difference parameter of the target robot connected to the robot controller; and a controller to control the target robot on the basis of model configuration information the individual difference parameter stored in the second memory. The controller may check the individual identification data read from the first memory unit against the individual identification data stored in the second memory unit and, in accordance with a checking result, update the individual difference parameter stored in the second memory unit with the individual difference parameter read from the first memory unit.

A motor control device may include a position command output means, a first subtraction means that calculates and outputs a position deviation, a position control means, a second subtraction means that calculates and outputs a position deviation, a speed control means that outputs a torque command, a limiter limits the level of the torque command, a motor drive means, and a voltage fluctuation detection means. When the voltage fluctuation detection means detects that the voltage of said power source has dropped below a predetermined reference level, either the position command output means varies the position command so as to reduce the rotational speed of the motor and/or said position control means limits said speed command to be output.

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Nagano, Japan

Jun Otsuji