Mitsubishi Denki Kabushiki Kaisha

Shizuo Kumekawa

Tetsuaki Nagano

Masanori Ozaki

Yasushi Ikawa

Kouki Matsumoto

Fumio Kumazaki

Daisuke Kawai

A drive control system having constituent devices such as control unit for drive control, servo amplifier for driving motor by receiving a command from the control unit, spindle amplifier, and input and output unit, with these constituent devices connected so as to communicate with each other, in which a memory is provided in each constituent device, the constituent devices are synchronized with each other, a communication unit is provided for transferring memory data between arbitrary constituent devices, and the memory is shared between arbitrary constituent devices.

Drive control system

A position controller includes: a compensation torque control circuit which outputs a second torque signal T.sub.2 * and an initial value of an integration torque T.sub.iset on the basis of a real speed signal .omega..sub.M, a rotation angle instruction signal .theta..sub.M *, a real rotation angle signal .theta..sub.M, an integration torque signal T.sub.i of a speed control circuit, and a reference .theta..sub.drp *; a speed control circuit which outputs a first torque signal T.sub.1 * and the integration output T.sub.i on the basis of a speed instruction signal .omega..sub.M * and the real speed signal .omega..sub.M ; an adder which adds the first torque signal T.sub.1 * to the second torque signal T.sub.2 * and outputs a torque instruction signal; and a torque control circuit which controls the torque of the motor in accordance with the torque instruction signal.

Position controller for an electric motor

Growing community of inventors

Tokyo, Japan

Shizuo Kumekawa