I'll just start with the obvious, and a question to you servos or steppers?
I think your problem is in the setup in mach.
Wire connections correct?
Check continuity though connectors.
Has the arm button been pressed?
Has the reset button been pressed in mach?
*Have you gone into mach and confirmed that the pin assignments are correct?
*Have you gone into mach and looked at the motor tuning?
*Have you gone into mach and checked the proper orientation of the limit switches?
Get into the diagnostics screen and manually toggle the switches and make sure mach is recognizing them properly.