I've been researching wire sizing for my build and here's what I've come up with:

1) Cable from wall socket to cabinet - 3 core, 2.5mm2 flex
2) 240Vac within cabinet - 2.5mm2
3) Earthing - 1.5mm2
4) 24Vdc signals - 0.5mm2
5) Proximity switches - 3 core 0.5mm2 CY
6) VFD to spindle - 4 core 1.5mm2 CY
7) 55Vac within cabinet - 2.5mm2
8) A+ / A- / B+ / B- - 4 core 1.5mm2 CY
9) EGND / VCC+ / EA+ / EA- / EB+ / EA- - 1mm2 CY
10) PUl+ / DIR+ - 0.5mm2 twisted

How does that all sound?