Fanuc Alarm 029 (or PS029) ILLEGAL OFFSET VALUE Fanus Control Model: Series 21 / 21i (Model A, B, & C) and modern controls like the 30i / 31i / 32i series Description Any value in the Tool Offset or Work Offset that is outside the specified range of the machine. Fanuc parameters have a limit…
Fanuc Alarm 101: PLEASE CLEAR MEMORY Fanus Control Model: Series 0, 16, 18, 21 Description When the power is turned off or the controller suddenly shuts down while writing data to memory (such as loading or editing a program), the part of the memory where the data was stored becomes “corrupted.” How to Fix Alarm…
Fanuc Alarm 86: DR SIGNAL OFF Fanus Control Model: Fanuc 16, 18, and 21 Series (including i-series), Fanuc 0/0i Series (0-M, 0-T, 0i-MA, 0i-TB, 0i-MC, etc.) Description This simply means that the controller is not receiving a “Data Set Ready” (DSR) signal from the external device PC or laptop. This problem mostly occurs when you…
Fanuc Alarm 85: COMMUNICATION ERROR Fanus Control Model: Series 16, 18, 21 (including i-Series) Description This alarm appears when there is an interruption in data transmission between the controller and an external device (such as PC or USB). This alarm indicates that while you were loading or downloading a program, an “Overrun,” “Framing,” or “Parity”…
Fanuc Alarm 30: ILLEGAL OFFSET NUMBER Fanus Control Model: Series 0/16/18/21/30i/31i/32i Description This alarm occurs when the CNC control is commanded to use a Tool Offset Number that does not exist in the machine’s memory or exceeds the maximum limit defined by your system’s parameters. This problem is usually caused by incorrect use of T-codes…
Fanuc Alarm 10: Improper G-Code Fanus Control Model: Specific Fanuc model (e.g., Series 0i, 16i, 18i, 21i). Description The machine has received a G-code that it does not recognize or that does not exist in its system. You may have accidentally written an incorrect code, for example, writing G001 or G100 instead of G01, which…
Fanuc Alarm 15: TOO MANY AXES COMMANDED Fanus Control Model: Fanuc Series 0/0i, 16i, 18i, 21i, 31i, and newer models Description This alarm typically occurs during a block of CNC code when the system attempts to move or command more axes than it is currently configured to handle simultaneously. This is often a programming logic…
Fanuc Alarm 37: CAN NOT CHANGE PLANE IN CRC Fanus Control Model: Fanuc 0i, 16i, 18i, 21i, 31i Series Description The Fanuc Alarm 37 occurs when the control encounters a command to switch the active work plane (G17, G18, or G19) while Cutter Radius Compensation (CRC), also known as G41 or G42, is active. How…
This alarm appears in Fanuc control systems when a change has been made to the system’s memory or parameters that requires a restart of the machine to take effect. This is usually not a “fatal” fault, but rather an instruction to refresh the system. Fanus Control Model: This is one of the most direct and…
Fanuc Alarm 4 ADDRESS NOT FOUND Fanus Control Model: Series 0/00/0-Mate and Series 10/11/12 Description The controller encounters an ‘Address’ or ‘Word’ within the program that it cannot recognize. When writing G-code or M-code, selecting a letter or number that does not exist in the system of this machine. How to Fix Alarm Check for…