I took the time to make a video for you, explaining the problem so that you can better understand what is happening on my machine.
Thank you very much in advance, I leave you the YouTube link.

https://www.youtube.com/shorts/odg0tRoL1SA

I'm sorry but I'm not inclined to look at a video.  I have said before, it may be that the Z DRO is expecting 1000 pulses per MPG rev so each pulse would be one increment of say 5/1000 mm or 5 micron (assuming a 5mm pitch screw).  But one turn of your MPG would feed it 1024 pulses to the Z axis so the Z axis would actually move 1024x5=5.12mm.

I'm sorry but I'm not inclined to look at a video.  I have said before, it may be that the Z DRO is expecting 1000 pulses per MPG rev so each pulse would be one increment of say 5/1000 mm or 5 micron (assuming a 5mm pitch screw).  But one turn of your MPG would feed it 1024 pulses to the Z axis so the Z axis would actually move 1024x5=5.12mm.

Juan, no problem. If you had watched the video, you would realize that is not the problem. Although it is as you say, when the MPG shows 0, the axis should end at 0. For example, if the encoder makes 10 turns and returns 10 turns, the DRO of the axis should return to the initial point as drawn by the MPG.
Kind regars,
Fred

 

I leave another video so you can see progress

https://youtube.com/shorts/2xmCvPPHBDA?feature=share