CNC machining center is a kind of automatic machine tool products that can process complex parts composed of mechanical equipment and numerical control system. CNC machining center will meet some problems in daily use. This is not only in the process of using CNC machining centers for us. Pay attention to maintenance and operation also need to pay attention to the operation of the CNC machining center, do not blindly operate, here we mainly listed some of the failures in the daily use of CNC machining centers and some simple CNC machining center failures analysis.
CNC machining center encoder pulse counting error alarm problem
This type of problem is usually displayed on the LED display. The PMM screen displays 303/304/305/308 alarms in the system screen. The main cause of the fault is that the serial encoder of the servo motor does not count the number or the pulse is lost during operation. This type of phenomenon needs to be turned on after shutdown, and often the alarm will disappear. If there is still an alarm, the motor or feedback cable should be replaced immediately. However, if the alarm sound disappears, there is no need to be too happy. We need to return to the CNC machining center again. Reference point and then run other commands to debug, weak PMM308 alarm may be caused by interference, then turn off and then you can
CNC machining center serial encoder communication error alarm
For such problems, we should first check the connection accuracy of the encoder amplifier and feedback line of the CNC machining center's CNC motor and whether there is a disconnection phenomenon. If the screen of the motor feedback line has not been intact, please go to the manufacturer's warranty as soon as possible, usually In CNC machining, the motor's encoder is integrated with the motor and it is best not to disassemble it.