mod 1HCL v1.0a with v2.0 ability to power logic with alt V?

[PuddleOfPolyglot]

There is a D20 on the 1HCL v2.0 board which is not on the 1HCL 1.0a schematic.

If I had a copy of the v2.0 schematic, would this D20 diode have a cathode on VB_FUSED and anode on the input filter ferrite bead to the 12V board power supply (parallel to D10 from V_FUSED)?

I'm wiring closed loop and really like the ability to deenergize the motors without losing the logic. Some of the 1HCL boards I bought (thank you KB-3D!) are v1.0a, so looking to OR-bridge the alt power to the logic with a cheap Schottky. This surely looks correct but I'll ask if anyone else has done this.

So, have ya?

[dc42]

@PuddleOfPolyglot it looks like the v2 schematic hasn't been put on Github yet, so here's an extract from that schematic:

So D20 anode is connected to VA_FUSED, and D20 cathode is connected to D10 cathode and inductor L2. VB_FUSED on the version 1 board has been renamed VA_FUSED on version 2.

[PuddleOfPolyglot]

@dc42 Yeah, that's it.

Now I can put a big red STOP button on the front of my machine: in the case that kittens, puppies, or tenured professors get stuck in the high-speed moving parts, the button cuts the power to the motors and they stop nearly instantly. Kittens everywhere are safer... perfect answer, thanks again!