Method and apparatus for controlling multiple motors

Patent · Thu Jan 01 00:00:00 EST 1987

OSTI ID:866355

Jones, Rollin G ^[1]; Kortegaard, Bert L ^[1]; Jones, David F ^[1]

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1. Los Alamos, NM

A method and apparatus are provided for simultaneously controlling a plurality of stepper motors. Addressing circuitry generates address data for each motor in a periodic address sequence. Memory circuits respond to the address data for each motor by accessing a corresponding memory location containing a first operational data set functionally related to a direction for moving the motor, speed data, and rate of speed change. First logic circuits respond to the first data set to generate a motor step command. Second logic circuits respond to the command from the first logic circuits to generate a third data set for replacing the first data set in memory with a current operational motor status, which becomes the first data set when the motor is next addressed.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4689541
• OSTI ID: 866355
• Country of Publication: United States
• Language: English

Related Subjects

method
apparatus
controlling
multiple
motors
provided
simultaneously
plurality
stepper
addressing
circuitry
generates
address
data
motor
periodic
sequence
memory
circuits
respond
accessing
corresponding
location
containing
operational
set
functionally
related
direction
moving
speed
rate
change
logic
generate
step
command
third
replacing
current
status
addressed
logic circuits
stepper motors
functionally related
stepper motor
data set
speed data
logic circuit
memory location
memory circuit
/318/