Assisstance with electrical diagram

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Discussion Overview

The discussion revolves around the wiring of a reversible DC motor with a potentiometer/PWM controller and the integration of a DPDT toggle switch to facilitate direction changes. Participants explore the correct connections and configurations necessary for the setup to function as intended.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • Robert describes his project involving a 12v reversible DC motor and the challenges faced when trying to incorporate a DPDT toggle switch for direction control.
  • Studiot suggests that the switch is wired correctly but emphasizes that the cross connections (1-6 and 3-4) must use insulated wire and provides specific connection instructions for the controller and motor.
  • Robert confirms that all wiring is done with insulated wire but expresses uncertainty about the power supply connections, which he describes as simple with only red and black outputs.
  • Another participant clarifies the manufacturer's instructions, indicating that the switch should be placed between the controller and the motor, suggesting a specific order of connections: Power Unit > Controller > Switch > Motor.

Areas of Agreement / Disagreement

Participants generally agree on the placement of the switch between the controller and the motor, but there are differing interpretations of the wiring specifics and the necessary connections for the power supply.

Contextual Notes

There are unresolved details regarding the complete wiring of the power supply to the controller, as Robert has not fully detailed these connections. Additionally, the effectiveness of the proposed configurations remains uncertain.

Who May Find This Useful

Individuals working on similar projects involving reversible DC motors, PWM controllers, and toggle switches may find this discussion relevant.

rummy98
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Hello all, I recently began a small project and ran into some trouble with the electrical components.

I purchased a small 12v reversible DC motor that came with a potentiometer/PWM controller and a 12v power supply. The motor is capable of running in either clockwise or counter clockwise direction depending on how the motor is wired.

My problem comes in when I attempt to insert a DPDT toggle switch to allow for ease of changing direction without having to swap wires. I connected everything, leaving out the switch for now and it all worked as it should, so I know the equipment is not faulty. Here is a diagram of what components I have and what wires are present.

http://img828.imageshack.us/img828/6310/diagramb.jpg

The manufacturer informed me that the switch needs to go on the controller side, not power. Per shipping directions - To run the motor:
In CW rotation, connect motor's green connector to controller's red connector and
motor's red connector to controller's black connector.
In CCW rotation, connect motor's green connector to controller's black connector and
motor's red connector to controller's red connector.

After some research, I learned to change polarity on a switch I needed to add a jumper from 1-6 and 3-4 (see above diagram), so I did that.

From this point on I did quite a bit of reading before coming here and have tested as many circuit combinations as I can think of but I still cannot get it to work as I would like. Being able to change direction with the switch while still maintaining the ability to control the rate of rotation with the potentiometer.

Any help with this would be greatly appreciated as I have run out of ideas and options. Please let me know if you need any additional information.

Thanks!
Robert
 
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Good morning Robert, welcome to Physics Forums.

You have the switch wired correctly, but the cross connections 1-6 and 3-4 must be with insulated wire.

Connect the controller red to 3 and the controller black to 6

Now connect the motor red to 2 and the motor green to 5

If you have already fixed the location of the switch and want the switch positions the other way round then reverse the motor connections.

I have not indicated the power supply to controller connections as you have not shown these fully and the manufacturer is correct, the switch goes between the controller and the motor.

go well
 
Thank you for the welcome and reply Studiot.

Everything is soldered with insulated wire. I am unsure what else you need to know about the power supply. It is a very simple PS, with only a red and black wire output.

Robert
 
The manufacturer informed me that the switch needs to go on the controller side, not power. Per shipping directions

This implies to me that you connect the controller to the power unit and the motor to the controller, with an optional switch between the controller and the motor?

PowerUnit > Controller > Switch > Motor
 

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