Z axis machine coordinate problem

Hi everyone... the machine work fine but if i use the G53 for go to the machine coordinates in the axi Z no work fine... the machine zero no is in the switch of axi Z, are more down... from the switch Z until machine zero there is 4,280 mm if we count the zero as 1 mm
if i want to move the axi Z at position machine -16.000 the axi no go to that position, the position end is -11.720

example:
this picture is when i setup the piece origin in the switch of Z axi


This picture is when y send the command G53 F100 Z -16


Thia picture is when i setup the piece origin when the Z axi go to end of command G53


This picture is the .ini file


Someone can help my to fix this?