How can I control a 24Vdc proportional valve with XBee S1?

Question

Hello,

I m working on a project to control a proportional valve that operates on 24VDC from Allen Bradley Compact controller, the thing is I'm not quite sure how can I drive the valve knowing that XBee will operate on 3.3V? what I provide the power supply for the valve externally would be easier design?

Thank you in advance for your valuable contribution!

Regards,

Answer 1

Hi Hassan,

Here is the kind of thing you are looking for:

http://en.wikipedia.org/wiki/Relay

Here is an example:
http://examples.digi.com/lights-motors-more/wireless-control-of-ac-devices-with-a-powerswitch-tail/

Here is a video that might be of some help:
https://www.youtube.com/watch?v=qAlEL6mWbBc

Here is someone else's example as well:
https://sites.google.com/site/xbeerelaycontroller/

Comments

Hello Nicholas,

Thanks for your answer, I thought that the relay will be used for ON/OFF type of valve, but in my project I'm using proportional valve that requires 24VDC and 4-20mA to control the valve. I don't how the 3.3V XBee can give me 4-20mA as a signal to the valve. So, it is not ON/OFF valve, it is an analog output 4-20mA operated valve..

Thank you again for the valuable comments..