I just got a G-Penny BST 3.2C-100-24K, 220V, 3.2kw, 15A, 400 Hz, 24000 rpm water cooled spindle and a
HY04D023B Input 220V 50/60Hz, Output 3Ph, 0-220ac, 4.0Kw, 18A, .5-400Hz VFD

Lots of questions.
I will need a 25' cable, the boot in the plug looks like it is made for a 3/8" dia. cable. I could use up to 1/2" dia cable and mold a new seal.

I have an IGUS distributor near me, What would be the recommended cable?

No instructions came with the spindle. I measured continuity from the plug pins to the spindle body and determined Pin 4 is ground.
Am I correct in assuming the other 3 pins, 1,2,3, can be connected to any of the U,V,W, screws on the VFD?

The Instruction manual that came with the VFD seems to assume that I would have some idea how to program it, I don't.
Maybe it will make more sense to me when I can turn the power on and push buttons, but I don't want to do something premature and wreck it.
Do I need to wait until I have the cable to the spindle connected before I power it up?