Hello, i want to replace my stepper motor of Y axis with a closed loop hybrid servo. I have to install it opposite direction than the the original motor, because it’s longer. Where can i change the setting, for example if the original motor when turns clockwise the axis moves rear, but with the new motor counterclockwise will have to move the axis rear. Is it in vendor settings in Ruida or somewhere else?
This is, in general, a Bad Idea™, because the different motor / driver setups will have different input-to-output delays. As a result, although the endpoints of each move will be correct, the trajectory along the path between them will be different; if you were expecting a straight line, that might not happen in all cases.
The easiest way to flip the motor direction is to interchange the two wires of one winding. The easiest place to do that is at the terminal block on the driver.
For example, swap the A+ and A- wires in the lower block:
The hot-melt glue slobbered over the ferrules is intended to keep them from being accidentally changed (or simply falling out), but diligently applying a needlenose pliers peels it off.
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Also B- and B+
I will also replace the X axis. Both motors will be replaced. Just X axis is direct replacement
@Jimi if you go to Edit > Machine Settings in LightBurn while connected to your Ruida controller, scroll down and open up the “Vendor Settings” area.
In there you will see a “Direction Polarity” option for each axis. You can just flip this setting and the motors should go the other direction.
Obviously, I highly recommend to keep a hand on the e-stop the first time you turn on or home the machine 
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This makes sense! Thanks!
If you also swap those wires, the motor will continue to rotate the wrong way.
You can swap A+ with A- or B+ with B- , but not both.
The motivation for not suggesting that is preventing future troubleshooting from eventually finding the polarity is different for the two axes. Given that it’s a whole new motor, wiring it to rotate just like the previous motor lets it drop right in without further hassle.
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Got it! Thanks 