New update on STMBL

Looks nice!

I have a Kuka kr200 robot and its motors are brake motors between 1.5~kw and 4.5kw. My robot does not have its own board. I want to make it with STMBL. I need a guide. Probably via Mach3.

You might want to start by looking at the documentation:
freakontrol.github.io/stmbl/docs/introduction/

Seems it's max power output is 2.2kW and apparently does not provide a command interface that is compatible with Mach3:

 

but how is that possible there are a lot of sample videos with mach3 stmbl v4

As far as I'm aware V4 used an obsolete power semiconductor this (v5) is a forked project with a new design.

The origingal project is here but has not seen updates in a few years:
github.com/rene-dev/stmbl

Note that v4 does not support motors above 2kW either.
You might want to ask for updates over on this site as there does still seem to be some activity there:
app.gitter.im/#/room/#rene-dev_stmbl:gitter.im

As far as I understand, this v5 supports imput 220vac 4 kW 4.5 kW motors, but is it not suitable for mach3? Doesn't it provide 5v pulse/dir?