Shanghai Richeng Electronics Co. Ltd - ISO9001/TS16949
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Fault Diagnosis of CNC Machine Tool Servo System

When the spindle servo system fails, there are usually three manifestations:

One is to display alarm information or alarm content on CRT or operation panel;

The second is to use the warning light digital tube on the spindle drive device to display the spindle drive failure;

Third, the spindle is not working properly, but without any warning message.

When the spindle speed exceeds the required range of technical requirements, we must consider:

Motor overload.

The spindle speed analog output by the CNC system (usually 0 - + - 10V) does not reach the value corresponding to the speed command.

Speed device is faulty or speed feedback signal is disconnected.

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