KR830008456A - 2-speed motor control system - Google Patents

Abstract

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Description

2-speed motor control system

Since this is an open matter, no full text was included.

1 is a generalized block diagram of a control system according to an embodiment of the present invention.

Claims (7)

Responding to a plurality of control signals from the motor system for supplying control trigger signals, for obtaining confirmation signals from the motor, and for varying the speed from the first speed of the pole-amplitude modulation (PAM) motor to another speed. The control system for controlling the speed of the PAM motor comprising a sequencer jinge in response to the trigger signal to sequentially supply a plurality of control signals to the motor in response to the supplied confirmation signal. The control system according to claim 1, further comprising an invalidation device responsive to the control signal to invalidate the speed change under the prescribed conditions and to keep the speed of the PAM motor at the first speed. The control system according to claim 2, wherein the invalidating device comprises a time delay device responsive to the appearance of a control signal for a defined time period for maintaining the speed of the motor at a first speed. An initiator responsive to the appearance of a first set of rewrite signals to provide a first trigger signal; A device comprising a first set of confirmation signals for operating the first circuit device for generating a first control signal and a first circuit device responsive to the first trigger signal, and a second for supplying a second control signal; A device responsive to the first command signal to supply a second set of confirmation signals to operate the circuit device and invalidate the first circuit device, and to operate the third circuit device to supply a third control signal and to operate the second circuit. The apparatus comprises a start sequencer device configured to respond to the second control signal to supply a second set of acknowledgment signals to invalidate and convert the degree of shift in the PAMW motor from the first speed to another speed; A speed change start device responsive to the appearance of a second set of start signals to supply a second trigger signal; A device that responds to a fourth set of live and second trigger signals for operating the first circuit device to supply a fourth control signal; and the fourth circuit device invalidates and supplies a fifth circuit to supply a fifth control signal. The apparatus includes a device responsive to a fourth control signal for supplying a fifth set of confirmation signals for effective operation, and a sixth device for invalidating the fourth circuit device and supplying a seventh circuit device for supplying a sixth control signal. To supply a seventh set of acknowledgment signals to supply a set of acknowledgment signals and to supply a seventh set of acknowledgment signals to invalidate the sixth circuit arrangement and to provide an eighth circuit arrangement to provide the seventh control signal. A control system according to claim 3 consisting of a speed change sequencer device having a device responsive to a sixth control signal. The control system according to claim 4, further comprising an invalidation device comprising a time delay device responsive to the appearance of one of the control signals that keeps the PAM motor at a first speed. An initiator comprising a first digital binocular circuit (flip-flop) responsive to the appearance of a plurality of start enable signals to supply a start demand signal; A device comprising a first Not gate responsive to the appearance of a second start confirm signal to supply a first switch control signal and a first start confirm signal and a start demand signal, and to supply a second start confirm signal. A device including a signal switch responsive to one switch control signal, a device including a first Not gate responsive to a second start confirmation signal to invalidate the first circuit device, and a second to invalidate the first circuit device. A device including a second Not gate and a second circuit responsive to the start acknowledgment signal, and a motor breaker responsive to the first motor breaker control signal to supply a third start acknowledgment signal to invalidate the second circuit arrangement. A third circuit device responsive to a fourth start confirmation signal and a third start confirmation signal from the PAM motor for supplying a start indication signal; It is configured with a start value Shi sequencer device that has a first, second, and third circuit comprises an AND gate for starting the motion of each speed from the PAM motor, respectively; A speed change start device comprising a second flip-flop responsive to the appearance of a plurality of speed change allowance signals to supply a speed change demand signal; A device comprising a fourth circuit device and a third Not gate, in response to a first speed change check signal and a speed change demand signal, in the absence of a three speed change check signal to provide a second motor breaker control signal; A device including a motor breaker responsive to the second motor breaker control signal to supply a change confirm signal, and a device including a third Not gate responsive to a third speed change confirm signal to invalidate the fourth circuit device; And a device including a fifth circuit device and a fifth Not gate in response to the absence of the fourth speed change confirmation signal and a third speed change signal to supply a second signal switch control signal, and a fourth speed change signal. A movement comprising a signal switch responsive to a second signal switch command signal to supply; an apparatus comprising a fifth Not gate to invalidate the fifth circuit device; A device comprising a fifth Not gate responsive to a fourth speed change signal in the absence of a fifth speed change acknowledgment signal to provide a circuit breaker control signal, and a motor circuit breaker control signal to supply a signal that is a fifth speed change signal. And a fifth Not gate responsive to the fifth speed change acknowledgment signal to invalidate the sixth circuit device, and a sixth speed change acknowledgment signal from the PAM motor to supply a speed change indication signal. And a seventh circuit device responsive to a fifth speed change confirmation signal, the fourth and fifth devices having an AND gate for varying the angular velocity motion in the PAM motor, respectively. It consists of a speed change sequence device, which has a fan that rotates in response to the rotation of the PAM motor, a signal switch connected to the motor breaker, a motor breaker and a damper. Pole in the electric motor system-amplitude-modulation (PAM) control system for controlling the speed of the motor. And further comprising a first time delay device responsive to the appearance of the first digital flip-flop and the appearance of the control signal of any one of said control signals for setting the second digital flip-flop. An apparatus according to claim 6 further comprising. ※ Note: The disclosure is based on the initial application.