Analysis of the causes of malfunctions in large CNC machining centers

A large CNC machining center is a fully functional CNC machining machine tool. It integrates functions such as milling, boring, drilling, threading, and thread cutting into one device, enabling it to have multiple technological means. The machining center is equipped with a tool library, which stores various quantities of tools or gauges, which are automatically selected and replaced by the program during the machining process.

This is the main difference between it and CNC milling machines and CNC boring machines. Especially for workpieces that require the use of tooling and specialized equipment to ensure product quality and efficiency. This will save a lot of time and cost for the development and modification of new products, thus making the enterprise more competitive. So, analysis of the causes of malfunctions in large CNC machining centers?

Fault 1: CNC machining center serial encoder communication error alarm

Reason: The unit has detected that the motor encoder of the CNC machining center is disconnected or has poor communication. Check if the encoder feedback line of the motor is connected correctly and firmly to the amplifier. If the feedback line is normal, replace the servo motor (as the encoder of the motor is integrated with the motor and cannot be disassembled). If it is α Replace the encoder with the motor. If it occurs occasionally, it may be caused by interference. Check if the shielding wire of the motor feedback line is intact.

Fault 2: CNC machining center encoder pulse counting error alarm (LED display 6, system PMM screen display 303/304/305/308 alarm)

Reason analysis: The serial encoder of the servo motor loses pulses or does not count during operation. Turn off and then on again. If there is still the same alarm, replace the motor (if yes α Motor replacement encoder) or feedback cable. If the alarm disappears after the CNC machining center restarts, it is necessary to return to the reference point before running other commands. If the PMM of the system is 308, it may be caused by interference, please shut down and turn it on again.