hi guys,
First fo all apologies for posting Fritzing "schematic" i know a lot of people hate it, but needed something sketched fast as a proof of concept.
Basically, my question is simple, i am building a "power ON/OFF" module for custom built 3D printer, so the concept would go like this:
Rasberry Pi runs on separate power supply, momentary switch is connected to raspberry pi GPIO3 (pin 5) and GND, with a simple script, shorting these two will power ON or OFF the RPi.
Once RPi is booted it would trigger GPIO signal to then trigger the relay and allow AC current to go to Meanwell 24V PSU. When shutting down, pushbutton is pressed again and while RPi is shutting down it sends the signal to relays again, cutting off the AC power to printer components.
Now, this all works and is clear but what i wanted to do is to cut both LIVE and NEUTRAL line, instead of just one, so my question is:
Can i use 2 channel relay (2 relays) to separately cut LIVE line with one and NEUTRAL line with the second relay. Is this OK?
Many thanks for any help in advance,
Alek