Control Polarity with 4-20mA current loop Receiver

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ronbo76

Joined Apr 2, 2018
20
Hi I am working on automation project in which I want to control the polarity of the devices by using 4-20mA sensor Model 642/643/647/648 gives DC output with the help of 4-20mA current loop receiver output interfacing with Onion Omega Kindly suggest me with hardware and any reference code and also wanted to control the PWM (either in forward or reverse polarity)
 

dendad

Joined Feb 20, 2016
3,598
Are you wanting to control a motor speed and direction with a 4-20mA input?
I think that is what you are asking.
Do you know about "H Bridges"?
Why use the Onion Omega? I think there are better boards for your project.

Also, what is your motor? There is a big difference depending on the power levels.
More details please.
 
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