Once powered on, the cutting head will always move upward, and will not stop. Switch to the manual state, and the motor can be controlled to move, and then switch to the automatic mode, and always mov

Cause analysis:
Whether the upper limit switch is good or bad, the lower limit signal is valid and always in the triggered state, or the collision alarm signal is valid and always in the triggered state.
Solution:
First, check whether the upper limit switch is valid. Second, disable the collision alarm and limit through parameter setting. If the phenomenon disappears, it means that the limit or collision alarm is triggered.
In addition, check whether the set limit polarity corresponds to the lim