Replacing stock psu for heated bed

Vertex 3D Printer Vertex - Wiring and electronics
1

I’ve bought a SNT MW-SP320-15 hoping that I could get away with using one psu for the printer (K8400) and heated bed (MK3).

I’ve got the power expander in place for the heated bed, but how do I go about an connecting the psu to the motherboard?

Can I connect it directly or do I need something in between ?

2

[quote=“Masdes”]Can I connect it directly or do I need something in between ?[/quote]As it’s a 15V PSU you can connect it directly do the controller board (it just replaces the stock one).

3

what if I went with [color=#0000FF]this one[/color] instead ?

4

The controller board can’t take 24V. So … no.