Servo control system

Details Servo control system Servo control system

1990-03-01

1993-10-12

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Pulse-width modulated power input to motor

318600, 388811, 388815, G05B 1929

Patent

active

052529029

ABSTRACT:
There are provided a position and velocity control system for producing a velocity command signal in response to a position command signal and a signal representing a current position and velocity of a servo motor, a current control system for supplying a drive current to the servo motor in response to the velocity command signal, and a communication system for transmitting data between the two systems by means of a bilateral communication line. A servo control system is thereby separated between the current control system and the position and velocity control system and connected to each other through the communication system. This separation through the communication system is advantageous for protecting the position and velocity control system from influence of noise generated in the current control system and also brings about benefits such as expansion of the controllability owing to the bilateral communication, sharing of a single current control system by plural servo motors by switching connection of the servo motors and controllability of plural pairs of servo motor and current control system by a single position and velocity control system by a multi-point connection.

REFERENCES:
patent: 4415844 (1983-11-01), Mendenhall et al.
patent: 4675582 (1987-06-01), Hommes et al.
patent: 4837491 (1989-06-01), Fujioka et al.
patent: 4847779 (1989-07-01), Masao et al.
patent: 4853602 (1989-08-01), Hommes et al.
patent: 4897587 (1990-01-01), DiGiulio et al.
patent: 5013989 (1991-05-01), Kurakake et al.

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