Another question regarding ground loops
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Dear Duet,
I'm building a simple XY motion system using a duet3 mini 5+, it is only connected to two nema14 motors at 0.7A.
The duet board is driven through a Python script and the easiest and currently working way is by sending the commands over USB to the duet. only (G90 G1 X... Y.... F...) commands are send. I don't need to upload big gcode scripts or files, but may commission some macro's in the future.
I noticed that when connecting the duet to a PC or laptop i should look out for ground loops. therefore I plan to use a floating power supply (Mean Well GSM90B24-P1M 24 V/DC 3.75 A 90 W) to power the duet. I also ordered the Adafruit USB isolated that was advised on the ground loop prevention page.
I think this should eliminate all possibilities of a ground loop to occur, or am I overseeing something? Would installing the adafruit USB isolated still be relevant as the board is not connected to earth by the PSU? Just want to be absolutely shore, don't want to break my expensive PC or connected equipment
better safe than sorry...
Kind regards,
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The isolated usb connection should be enough.
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many thanks for your fast response, so a clas I or class II power supply brick will not make a difference?
Kind regards
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won't hurt, but if you're trying to stop a USB ground loop, isolating the USB cable electrically is enough.
