So i’ve got a problem with a relay board making my power supply shut down. Fritzing schematic and build pictures attached.
The problem is that when all electromagnets are plugged into the NC of all 4 relays my power supply ceases to turn on - (power supply - Yeeco Buck Converter).
It works with only 2 electromagnets attached to the relays but once i add a third it switches itself off then wont turn back on until i take all loads off of the relays. When the electromagnets are plugged into the NO of the relays all works fine but is obviously on the wrong side. I’ve tried rewiring and my only other idea is to put another 1N4007 diode on the in of the buck converter.
I’m unfortunately away from the project until tomorrow so can’t try this. Does anyone have any other ideas as to what this might be?