I tested this with spindle motor on plywood sitting on the table and all was fine.
Put the motor on the machine and now when I start the motor through the Teco FM50 all the -axis start moving slowly.

Why would it work on the table but not work when on the mill?

THe Teco is grounded with jumper to panel. EMI filter inches from Teco on lines in.
Shielded cable grounds to panel
Motor grounds to panel.
Another ground going to transformer panel above control box.
My transformers and relays are in different enclosures from main control enclosure. Ugly but I was hoping I wouldn't have these issues if I did it that way.