After normal connection, press the auto-focus button, and the cutting head will move upward all the time.

Cause analysis;
The motor polarity is set incorrectly or the motor wire A+A - is connected incorrectly.
Solution;
If the cutting head moves in the opposite direction to the collision plate during automatic focusing, the motor polarity needs to be modified,
If the original polarity is positive, it should be changed to negative, and vice versa.
For parameter settings, refer to the parameters in the height regulator setting software. Swap motor wires A+, A -.