Aluminium Profile Type Router - Initial questions

[JAZZCNC]

With the LCDA86 driver Jazz recommended, what voltage would be ideal. Its up to 100Vdc and I see a few people have used 68V - so would give some margin but would that be at expense of too much power?
LC60H2112 is listed as 5.6A current, so with 4 motors do I need 22.4A x 68V = 1523VA PSU? Sounds huge.

You don't need 22.4a you only need approx. 60% of total current draw because of how the drives work using PWM etc which I won't get into. Also you'll rarely max out all motors so got little more leigh way in use.
I would use AC and do away with the need to rectify and Caps etc required for DC. This is what I would use with those drives wired AC. Wire the secondaries in parallel and you'll end up with approx. 11a which isn't quite 60% but still more than enough.

https://airlinktransformers.com/prod...ange-cm0750265

I'm trying to take each component in turn and map out the connections - first the driver to AXXB-E. Except for ALM I can't figure out which other terminals need to be connected if at all ? For example ENA+, Pend, and the Encoder E* ones.
AXXB manual refers to just Step and Dir.

Start simple, if your not used to wiring things like this don't try and wire it all in one go it will just blow your mind. Start with basics first and do it in stages.

I would start by setting up the main latching E-stop circuit and getting movement just with Step & Dir. Forget, enables and alarms at first they can be added later.
Next wire in Home/limit switches. This then gives you the basics or a working machine.
Now you can start adding other features like Alarms, enables etc and controlling any external devices using outputs etc like spindle control.

My favourite saying is "Treat it like eating an elephant, one bite at a time."

Edit: With the cabinet don't stress out over this either, concentrate on layout and wire routing , the main thing is to keep low voltage signal wires away from higher voltage wires as much as possible and make sure you use Star grounding. If your using a VFD and thinking to put in cabinet just pay close attention to where the main spindle cable goes, I'd also suggest you don't put it near the main controller.