Method and apparatus for controlling multiple motors

Patent · Tue Aug 25 04:00:00 EDT 1987

OSTI ID:6037423

Jones, R G; Kortegaard, B L; Jones, D F

A motor control system is described for sequentially controlling stepper motors, including: addressing means for generating address data for each motor in a periodic address sequence; memory means responsive to the address data for each motor for accessing a memory location corresponding to the address data, the memory location containing a first data set functionally related to a direction for moving the motor, a number of steps remaining to move the motor, a speed for moving the number of steps, and a rate of change for the speed; first logic circuits for inputting the first data set and for outputting a second data set for commanding the motor to make a single step in a determined direction after a number of the periodic addresses; second logic circuits for inputting the second data set and for outputting a third data set functionally related to a status of the motor is response to the second data set; and means for replacing the first data set with the third data set in the memory at the location corresponding to the address of the motor, the third data set becoming the first data set at a next periodic addressing of the motor.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4689541
• OSTI ID: 6037423
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMMUNICATIONS
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
DATA TRANSMISSION
DATA TRANSMISSION SYSTEMS
ELECTRIC MOTORS
ELECTRONIC CIRCUITS
EQUIPMENT
INFORMATION RETRIEVAL
LOGIC CIRCUITS
MEMORY DEVICES
MOTORS
SPEED REGULATORS
VELOCITY