Four manifestations of automatic CNC machine tool electrical failure

What are the aspects of electrical failure of automatic machine tools?

1. Electrical failure on the machine tool body. This kind of fault can first use the alarm number of the self-diagnosis function of the machine tool to consult the ladder diagram or check the signal status of the i/o interface, according to the paper, data, troubleshooting flow chart, adjustment method provided by the automatic CNC lathe maintenance copy, and combined with the experience of the staff to check.

2. Magnify and detect department faults. This fault can be used by the alarm number of the computer self-diagnosis function, the information status indicator light on the computer and the servo amplifier driver board, the fault alarm indicator light, refer to the transition shape and voltage value of the test point of the hub, the parameter setting of the computer and the servo amplifier board, the setting of the short circuit pin and the adjustment of the related potentiometer, as described in the maintenance copy. Function compatible board or backup board replacement and other methods to make diagnosis and troubleshooting.

3. The computer department is faulty. This kind of fault mainly uses the alarm number of the computer self-diagnosis function, the information status indicator light on the computer board, the waveform and voltage value of the test point of the hub, the adjustment of the relevant potentiometer, the setting of the short circuit pin, the setting of the parameter value of the machine tool, the special diagnostic component, and the reference to the computer control system maintenance manual, electrical diagram to diagnose and eliminate.

4. The AC spindle control system is faulty. When the AC spindle control system fails, it is necessary to first understand whether the operator has accidental operation that does not conform to the control procedures, whether the power supply voltage is abnormal, and whether there are visual faults such as short-circuit trip and fuse disconnection. If not, reconfirm that it belongs to the alarm display class fault. Still no alarm display class fault, depending on the details.