CNC Alarms

Fanuc Alarm 11: NO FEEDRATE COMMANDED Fanus Control Model: 16/18/21 Fanuc Alarm Description Feedrate was not commanded to a cutting feed or the feedrate was inadequate. Modify the program.

Fanuc Alarm 14: CAN NOT COMMAND G95 / ILLEGAL LEAD COMMAND Fanus Control Model: 16/18/21 Fanuc Alarm Description (M Series) A synchronous feed is specified without the option for threading / synchronous feed. (T Series) In variable lead threading, the lead incremental and decremental outputted by address K exceed the maximum command value or a…

Fanuc Alarm 20: OVER TOLERANCE OF RADIUS Fanus Control Model: 16/18/21 Fanuc Alarm Description In circular interpolation (G02 or G03), difference of the distance between the start point and the center of an arc and that between the end point and the center of the arc exceeded the value specified in parameter No. 3410.

Fanuc Alarm 21: ILLEGAL PLANE AXIS COMMANDED Fanus Control Model: 16/18/21 Fanuc Alarm Description An axis not included in the selected plane (by using G17, G18, G19) was commanded in circular interpolation. 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 036 (or P/S 36): CAN NOT COMMANDED G31 Fanus Control Model: Series 16/18/21 Description This alarm occurs when a skip cutting command (G31) is called while the machine is actively using cutter compensation (G41 or G42) or tool nose radius compensation. How to Fix Alarm Cancel cutter compensation by writing G40 before issuing…

Fanuc Alarm 34: NO CIRC ALLOWED IN ST–UP /EXT BLK Fanus Control Model: Series 0i / 16i / 18i / 21i / 31i / 32i Description This alarm (Fanuc Alarm 34) occurs when you are starting (Start-up block) or ending (Cancel block) Cutter Radius Compensation using G41 or G42, and write Circular Interpolation (G02/G03) instead…

Fanuc CNC Alarm 33: NO SOLUTION AT CRC Fanus Control Model: Series 16 / 18 / 21 (M and T Series) Description During tool radius compensation (G41/G42), the intersection point of two geometric lines or arcs fails to be detected. How to Fix Alarm Correct the tool path in the G-code program, or go to…

Fanuc Alarm 31: ILLEGAL P COMMAND IN G10 Fanus Control Model: Series 16i / 18i / 21i (Models A and B) and Series 30i / 31i / 32i Description When you use the ‘P’ command incorrectly with a G10 code. The value written after ‘P’ is either outside the offset number that is available in…

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…