Change Rear Tool Post to Front 

* F1 set up - F3 confi (137 enter) - F2 machine - F2 motor .

High light X axis, go to the number and swap the number under Limit  and Home (Negative and Positive).

Change direction Y to N ( or N to Y).

After that, Press F10 save.

** Paramerter 1 change 0 to 1.

 F1 set up - F3 confi (137 enter) -F3 Paramerter, go to parameter 1 change to 1. Press F10 Save.

*** Change spindle direction: Turn off power -Open cover inverter in the electrical cabinet, swap the wires FWD and REV.( black and white wires).