How can i use 5V to switch 24V on/off?

  • Thread starter Thread starter opmal7
  • Start date Start date
  • Tags Tags
    Switch
Click For Summary

Discussion Overview

The discussion revolves around the challenge of using a 5V control signal from a joystick to switch a 24V motor brake on and off. Participants explore potential solutions involving relays and provide insights into the configuration of the control system.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant seeks advice on how to use a 5V button to control a 24V motor brake, indicating a lack of familiarity with relays.
  • Another participant suggests using a relay to switch the 24V from the 5V input, mentioning the need to specify whether a normally open or normally closed relay is desired.
  • A participant confirms that the push-button is wired as a digital input to the motor controller, which is configured as a dead-man's switch, and explains the operational logic behind engaging and disengaging the motor brake.
  • Another participant expresses willingness to provide wiring instructions for the relay circuit, indicating that it is not a difficult task.

Areas of Agreement / Disagreement

Participants generally agree that a relay can be used to switch the 24V motor brake with a 5V signal, but there is some uncertainty regarding the specifics of the wiring and configuration.

Contextual Notes

There are limitations in understanding the exact requirements of the project, such as the specific type of relay needed and the detailed wiring instructions. Additionally, the discussion does not resolve the best approach for integrating the relay with the existing motor controller setup.

Who May Find This Useful

This discussion may be useful for individuals working on projects involving motor control systems, particularly those looking to interface low-voltage controls with higher-voltage components.

opmal7
Messages
26
Reaction score
0
I'm working on a project that uses a joystick to control a motor. The motor has an electric motor brake built in, and I want to be able to engage/disengage the brake with a button on my joystick.

The motor runs on 24VDC, and the joystick runs on 5VDC. I currently have the button on the joystick configured as a dead man's switch for the motor (button has to be pressed to move the motor), and I would like to have the same button disengage the motor brake.

I'm not real familiar with relays or other electronic equipment. Is there a device that I can wire the 5V button to as input, and have 24V as output to the motor brake?

Thanks in advance for any suggestion/info.
 
Engineering news on Phys.org
Is there a device that I can wire the 5V button to as input, and have 24V as output to the motor brake?
Yes: it's called a relay.
I'm not real familiar with relays or other electronic equipment.
Looks like you are about to become familiar then.

Go to an electrical suppliers and say "I want a relay to switch 24V from 5V".
They'll ask if you want normally open or normally closed (I guess you want open).
They'll give you one.

How did you rig the dead-mans-switch?
Sounds like you have a single-pole button and you want it to do two tasks.
 
Thanks for the info. I'll see what I can find in 5V to 24V relays.

The push-button is wired into the motor controller as a digital input. The motor controller's software allows me to configure the digital input as a dead-man's switch. Your correct saying I want the single-pole button to have 2 functions. The motor brake is engaged when the motor is not moving to prevent back-driving. Pushing the button releases the motor brake and allows the motor to move. This will prevent someone from trying to move the motor while the brake is engaged which would push a lot of current to the brake or apply a lot of torque and possibly cause it to fail.

Again, thanks for the info.
 
I don't really understand your project. But I think you want to drive 24V from 5VDC. It's not difficult. You only need one 5V relay to control 24 motor. If you will, I can show you how to wire the circuit. It's not difficult. Take it easy.
 

Similar threads

  • · Replies 14 ·
Replies
14
Views
5K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 5 ·
Replies
5
Views
654
Replies
1
Views
3K
Replies
11
Views
2K
Replies
7
Views
2K
Replies
37
Views
7K
  • · Replies 7 ·
Replies
7
Views
925
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 9 ·
Replies
9
Views
3K