ESAB Ultrarex UXD-P 2500 retrofit with Linuxcnc and Proma THC

after a trouble with an x motor/driver that stop working, I change the y motor/driver to x and attach a new servo+driver on y. I made some test with the plasma and i realize that THC respond very slow because a little speed on z axis about 200mm/min. Now i try to reconfigure the z axis but without succes. On Z axis I have an Leadshine driver M880A and a Sanyo Denki stepper 103H7823-0440. I configure from driver microstep to 2 that corespond to 400 step/rev. Now the speed are about 1400mm/nim but with following error. When I stop to jog the axes the following error apear. I attach the ini file maybe somebody can help with solving this problem.

Thank you.

playing with setting and read some articles, this is my new configuration. it is ok? I reached a max velociti 900mm/min. It is enough for z axis?

thank you.

at 200 mm/min the thc response was very slow and the torch hit the material. This is for a difference adout 20mm from one end to another end from 1m steel sheet. How can I increase the speed to 2000 mm/min?

If I want to leave oxygen cuting, need to connect and program valves or smth?

Does anybody have information about this X servo driver and motor?

X axis. There are two motors. X1 and X2. X1 motor already fine, but how to synchronise X2 motor...it's on the same axis, but diferent rail. This one have reductor 1:15.