The cutting head automatically focuses or moves downward at any time.

Cause analysis:
Sensor failure or amplifier failure collision alarm wiring error, resulting in the metal plate of processing equipment is not well grounded with the machine.

Solution:
Contact the cutting head with a metal object, and observe whether the collision indicator on the amplifier and the indicator connected to the height adjustment box are on,
If yes, eliminate the sensor problems.
If the indicator is not on, the sensor is faulty. Check the wiring and plate grounding problems.