ground loop possible?
-
Hello. Im going deeper and deeper on using weird config on the duet3
I have a total of 3 printers with a duet 3 on them.
I installed a semaphore on 1 of them, just to signal a print finished, error, etc. A light of different colors is controlled by 3 different outputs (out 4 to 6 on the duet)
Works good. I want now to connect the same semaphore to the other 2 duets. So, without being an electrical engineer, my plan is:
I connect another cable from the other OUTs of the other duets to the light cables on the semaphore.
But I have like a doubt here and potential problem: I will be connecting different power source if I do it in this way. In order to avoid problems, would be ok to connect a shotky diode in each cable so I block any "incoming " voltage coming from the other duets?
The connection now is: - cable of a light connected to out4, + cable connected to V_OUTLC1
Any comments on how to properly connect this will of course be more than welcome
