ADC shutting down due to noise

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1

I have a beagle bone black in a steel box with all shielded sensor wires. Next to it is a VFD driving a motor. When the VFD is off everything works like a charm. When the VFD runs the ADC shuts down after a couple minutes.

The script starts shooting out errors about AIN file locked.

Any suggestions for isolating that noise? Im thinking ferrite chokes.

Also has anyone else ran into this?

2

I’ve not seen the problem with a BB, but have you taken a look at your grounding arrangement? How big is that motor?

3

What are you referring to with grounding arrangement? Everything is grounded back to the main panel with a 6ga grounding wire. The motor is a 3hp motor but its usually running at 35%.