Control system for moving a large machine along a single axis

Details Control system for moving a large machine along a single axis Control system for moving a large machine along a single axis

1976-12-30

1978-05-02

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Plural servomotors

318 8, 318571, G05B 1132

Patent

active

040877310

ABSTRACT:
A control system for moving a large machine along a single axis. The control system includes first and second position loop servo systems to drive at least respective first and second motors to move respective first and second sides of the machine in the direction of the single axis. The control system is comprised of means responsive to position error signals generated by each position loop servo system for generating a difference error signal that is indicative of the difference between the actual position of each respective side of the machine along the single axis, and means for coupling the difference error signal to means for driving at least one of the motors for causing a change in movement of that motor in a direction to move each side of the machine toward the same actual position while at the same time causing the difference error signal to be reduced toward zero.

REFERENCES:
patent: 3588660 (1971-06-01), Purkhiser
patent: 3593094 (1971-07-01), Katsumaru
patent: 4008829 (1977-02-01), Chandra et al.

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