z problem

[kane77]

im in the prosess of upgrading my cnc to the rscnc32
ive got everything working except my z goes down no problem but i cant get it to go back up.
ive checked all the wiring dozens of times with out any sucess.
any thought would be helpful.thanks

[mstrens]

If a stepper motor turns only in one direction the reason (99% of case) is because the driver does not get the right "DIR" signal.

You probably have a wrong soldering (on STM32) for Z DIR pin.
Otherwise, it is a wrong wiring (perhaps on the DIR+)

You can check it easily, switching the driver Z with another one