I build new 3 Axis Milling router.

I put 3 home switch for 3 Axis. I check in Diagnostig page so it works well. But I press the ref all axis home, then Z axis dont move and DRO shows o.oooo

X and Y axis work. What is the problem ?

Please help.

Thanks

Sounds like either you have not enabled them as Home switches in Ports and Pins or you have electrical noise.
Hood

all home sw are actif on setup

Then that only leaves noise as the culprit, unless your screen does not have the correct VB in the RefAll button. If you go to Operator menu then choose Edit Button Scripts you will see the Ref All button flash, click on it and see what is in the VB.
Hood

Could this be a problem with VB script on RefAll button.

Jeff