Electrical motor position controller

Details Electrical motor position controller Electrical motor position controller

G - Physics

05

D

G05D 3/20 (2006.01) G05B 19/23 (2006.01) G05B 19/414 (2006.01) H02P 23/00 (2006.01)

Patent

CA 2057791

ELECTRICAL MOTOR POSITION CONTROLLER ABSTRACT OF THE DISCLOSURE A position controller controls the direction and degrees of rotation of an electrical motor output shaft in response to a stored control program. The stored control program contains a plurality of profiles, each including a plurality of successively executed steps defining the operation sequence of the motor. Each step includes programmed instructions defining a predetermined amount of rotation of the motor output shaft and a predetermined event which must occur before the step is executed. In one embodiment, the controller selectively controls the speed of the motor in each step. The controller supplies a signal, programmed in each step, to a variable frequency A.C. drive which correspondingly varies the frequency of A.C. power supplied to the motor to vary the operating speed of the motor.

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