Fanuc Alarm 4: ADDRESS NOT FOUND

Fanuc Alarm 28: ILLEGAL PLANE SELECT Fanus Control Model: 16/18/21 Fanuc Alarm Description In the plane selection command, two or more axes in the same direction are commanded. Modify the program.

Fanuc Alarm 118: PARENTHESIS NESTING ERROR Fanus Control Model: 16/18/21 Fanuc Alarm Description The nesting level of brackets or parentheses in a macro expression exceeds the limit of 5 levels.

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…

The Fanuc SV040 alarm is a servo-related error that indicates a N-th Axis Overload. This means the CNC system has detected that the motor is drawing too much current or is working too hard to maintain its position or movement, potentially leading to overheating. Common Causes The SV040 alarm can be triggered by either mechanical…

Fanuc Alarm 25: CANNOT COMMAND F0 IN G02/G03 Fanus Control Model: 16/18/21 Fanuc Alarm Description F0 (fast feed) was instructed by F1 –digit column feed in circular interpolation. Modify the program.

In the world of CNC machining, encountering a FANUC 401 Alarm can bring production to a grinding halt. This specific error is one of the most common—yet occasionally frustrating—faults found in FANUC Alpha and Beta series drive systems. Specifically, the 401 alarm stands for “V-Ready Off.” In simpler terms, the CNC control is expecting the…