A comprehensive list of fault codes for CNC machine tools

There is no unified and universal fault code for different brands and models of CNC machine tool systems. The most authoritative reference is always the original factory manual that comes with the corresponding machine tool. The following is a summary of common fault codes for mainstream systems, which can be used as an emergency reference

Ⅰ. Common Core Codes of Fanuc Systems

The program alarm (P/S)      000        parameter modification requires a power-off and restart for it to take effect

Program alarm (P/S)                010        G code instruction error, using G code that is not supported by the system

Program alarm (P/S)                073        tool compensation value missing, compensation parameters need to be set in the H register

Servo alarm                                    401       The servo amplifier is not ready, the driver is not powered on, or the signal is disconnected

The servo alarm shows that the following error of the       410/411           axis is too large, the load is too heavy, and the lead screw is stuck

Overtravel alarm                          500-505   For hard overtravel of each axis, manual reverse movement of the axis to reset is required

The hardware alarm                   1001       emergency stop signal is triggered. Check whether the emergency stop button has been reset

Hardware alarm                             310        The battery voltage of APC is low. It needs to be replaced immediately to prevent the loss of the origin

Ⅱ. Common Core Codes of Siemens Systems

25000     If the shaft following error exceeds the limit, check the mechanical load or servo parameters

25050     The encoder signal is faulty. Check if the circuit is disconnected

23000     The shaft overruns, and the soft and hard limit switches are triggered

12000      There was a communication failure in the driver, and the connection between the NCU and the driver module was interrupted

13000      Drive overload, excessive mechanical load or motor failure

Ⅲ. Common Codes for Other Mainstream Systems

1.Guangshu GSK980 series

008/015: The spindle simulation voltage is invalid. An anomaly occurs when executing G96 or shifting M codes

1041: Abnormal spindle servo or frequency converter

2. Haas system

100/103: The air pressure is too low. The air pressure in the workshop needs to be restored to ≥85psi

108: Emergency stop, reset the emergency stop button and check the door interlock device

3. Mazak System

1001: Servo alarm. There is an overload or wiring issue with the servo motor or amplifier

221: Spindle driver alarm, overcurrent or overload fault