Write the following RLL program: It is desired to design the controls for a large, three phase AC Motor. When the motor is off, a green light is on. When the Run momentary button is pressed, the green light turns off and a red light starts flashing, 1 sec. on, 1 sec off, and a horn starts. This lasts for 10 seconds. At that point, the red light stays on continuously, the coil for the three- phase motor relay is energized and the motor starts. Pressing the Off momentary kills the motor and restores the green light.

Write the following RLL program: It is desired to design the controls for a large, three phase AC Motor. When the motor is off, a green light is on. When the Run momentary button is pressed, the green light turns off and a red light starts flashing, 1 sec. on, 1 sec off, and a horn starts. This lasts for 10 seconds. At that point, the red light stays on continuously, the coil for the three- phase motor relay is energized and the motor starts. Pressing the Off momentary kills the motor and restores the green light.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter43: About Dc Motors

Section: Chapter Questions

Problem 1SQ

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