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4 axis is not working for me.

AXBBE mom and Leadshine EPL servos. Everything works but I can't split the 4th axis.
I have the pins set to 15-16 and ENB to 4. The drive is a Leadshine EasyServo 20Nm with a new ES2 driver. The engine is tuned and works properly. After starting UCCNC, I see my engine light A is on and the engine is really on. I want to go one revolution, but the engine does not turn. At the same time, I can see how the program moves. It's funny that I can only JOG in one direction.

I don't know how to set it up and what should or shouldn't work. Please, give me an advice. It's not nice in the manual.

Thank you

All axes are the same electrically in the AXBB-E. If you exchanging that axis to another axis in the settings then you can move the axis?
If you reconnecting the servo drive from that axis outputs to another axis outputs then you can move the axis?
I would do these checks for debugging.

I have ELP 1000W servos on the XYZ axes and EasyServo 20Nm on the A axis, which is rotary.
I'm just about to replace the drivers with older ones, because maybe there is a problem with the EasyServo driver itself.
Otherwise, yes, I'll try shuffling the axes and leave X as A, for example, which I know works. But what also bothers me is the fact that it cannot turn to one side when the Softlimit is engaged.
Thanks for the response