The comprehensive processing capability of the cnc vertical mill is strong, and more processing contents can be completed after the workpiece is clamped once, and the processing accuracy is high. For batch workpieces with medium processing difficulty, the efficiency is 5-10 times that of ordinary equipment. In the actual operation process, I believe everyone has encountered the situation of encoder error alarm. So, do you know the cause of the failure and the solution? Today, I will give you a detailed introduction.
1. Cnc vertical mill encoder pulse counting error alarm (LED display 6, system PMM screen display 303/304/305/308 alarm).
Cause of failure: The serial encoder of the servo motor loses pulses or does not count during operation.
Solution: Turn off and on again. If the same alarm still exists, replace the motor (replace the encoder if it is an α motor) or the feedback cable. If the alarm disappears after restarting the CNC machining center, you must return to the reference point before running other instructions. If the PMM of the system is 308 alarm, it may be caused by interference, turn off and then turn on.
2. Cnc vertical mill serial encoder communication error alarm
Cause of failure: The unit detects that the motor encoder of the cnc vertical mill is disconnected or the communication is poor.
Check whether the connection between the encoder feedback wire of the motor and the amplifier is correct and firm. If the feedback line is normal, replace the servo motor (because the encoder of the motor is integrated with the motor and cannot be disassembled), if it is an α motor, replace the encoder. If it happens occasionally, it may be caused by interference. Check whether the shielded wire of the motor feedback wire is intact.
