The wiring seems to be correct in as much as I can see. That is assuming of course that they are corrected to the correct pins on the servo drives.
The pic you have just attached does not matter as that is for Step/Dir input and you are set up for +/-10v so are not using step/dir.
In Mach I see you have 2500 steps per unit set, that is possibly incorrect as I think your encoder will be 2500 line or 10,000 pulse per rev. You will then need to work out how far the axis travels per motor rev to get the steps per unit.
For example if you have the motors coupled 1:1 to the ballscrew and the ballscrew pitch is 5mm then your steps per unit will be 10,000/5 = 2,000
Hood