Title: Lab 3-9: Two Motors, Simultaneous Start
Course: Electrical Motor Controls (Sandbox) > Section: Module 3: Common Control Circuits, 20 hr

Introduction

Now that you know how to cause two motor coils, M1 and M2, to become energized and then de-energized by pressing "Start" and "Stop" buttons, you will build a circuit that causes both to become energized through auxiliary contact. So, the motor coil M1 is energized when you press and then release the "Start" button. It remains energized until the "Stop" button is pressed or the overloads are tripped. In addition, the motor coil M2 is energized whenever the M1 coil is energized, through an Auxiliary Contact.

The following video will walk you through the steps of building the circuit according to the schematic shown below.

Lab Instructions

1. Watch the video introduction to this lab.
2. Draw a schematic diagram, in Automation Studio or by hand, that represents a circuit that will operate as described above. Make sure your circuit works in simulation before moving on to the next step.
3. Unplug the Motor Controls trainer.
4. Build the circuit on the Motor Controls trainer.
5. Plug in and turn on the Motor Controls trainer.
6. Test the circuit.
7. When a user presses and then releases the "Start" button, the motor coil M1 becomes energized. It remains energized until the "Stop" button is pressed or the overloads are tripped. In addition, the motor coil M2 is energized whenever the M1 coil is energized, through an Auxiliary Contact.

Submission

To complete this lab, submit a 30-second video following the criteria found in the rubric. If you are working with another student, each of you must record and submit your own videos.

Unless specified otherwise, any and all work on this lab page is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.