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    Fanuc Alarm 5117: SPL: ERROR

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5117: SPL: ERROR Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description The first control point of NURBS is incorrect. Have you faced Fanuc Alarm 5117 SPL: ERROR on your machine? Share your experience or troubleshooting tips in the comments below to help other CNC operators and programmers…

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    Fanuc Alarm 5116: SPL: ERROR

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5116: SPL: ERROR Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description There is a program error in a block under look–ahead control. Monotone increasing of knots is not observed. In NURBS interpolation mode, a mode that cannot be used together is specified. Have you faced Fanuc…

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    Fanuc Alarm 5115: SPL: ERROR

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5115: SPL: ERROR Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description There is an error in the specification of the rank. No knot is specified. The knot specification has an error. The number of axes exceeds the limits. Other program errors Have you faced Fanuc Alarm…

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    Fanuc Alarm 5114: NOT STOP POSITION (G05.1 Q1)

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5114: NOT STOP POSITION (G05.1 Q1) Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description At the time of restart after manual intervention, the coordinates at which the manual intervention occurred have not been restored. Have you faced Fanuc Alarm 5114 NOT STOP POSITION (G05.1 Q1) on your…

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    Fanuc Alarm 5113: CAN NOT ERROR IN MDI MODE

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5113: CAN NOT ERROR IN MDI MODE Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description Look–ahead control (multi blocks are read in advance) (G05.1) was specified in MDI mode. Have you faced Fanuc Alarm 5113 CAN NOT ERROR IN MDI MODE on your machine? Share your experience…

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  • CNC Alarms

    Fanuc Alarm 5112: G08 CAN NOT BE COMMANDED

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5112: G08 CAN NOT BE COMMANDED Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description M series;Look–ahead control (G08) was specified in look–ahead control mode (multi blocks are read in advance). Have you faced Fanuc Alarm 5112 G08 CAN NOT BE COMMANDED on your machine? Share your experience…

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  • CNC Alarms

    Fanuc Alarm 5059: RADIUS IS OUT OF RANGE

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5059: RADIUS IS OUT OF RANGE Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description A radius exceeding nine digits has been specified for circular interpolation with the center of the arc specified with I, J, and K. Have you faced Fanuc Alarm 5059 RADIUS IS OUT…

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    Fanuc Alarm 5058: G35/G36 FORMAT ERROR

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5058: G35/G36 FORMAT ERROR Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description A command for switching the major axis has been specified for circular threading. Alternatively, a command for setting the length of the major axis to 0 has been specified for circular threading. Have you…

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    Fanuc Alarm 5057: M–NET BOARD SYSTEM DOWN

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5057: M–NET BOARD SYSTEM DOWN Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description Transmission timeout error (parameter No. 177) ROM parity error CPU interrupt other than the above Have you faced Fanuc Alarm 5057 M–NET BOARD SYSTEM DOWN on your machine? Share your experience or troubleshooting tips…

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    Fanuc Alarm 5055: M–NET PRT/FRT ERROR

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 5055: M–NET PRT/FRT ERROR Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description Vertical parity or framing error Have you faced Fanuc Alarm 5055 M–NET PRT/FRT ERROR on your machine? Share your experience or troubleshooting tips in the comments below to help other CNC operators and programmers clear…

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  • CNC Alarms

    Fanuc Alarm 4604: ILLEGAL AXIS OPERATION

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 4604: ILLEGAL AXIS OPERATION Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description A C-axis command was specified in the block containing a T command for multiple tools. Have you faced Fanuc Alarm 4604 ILLEGAL AXIS OPERATION on your machine? Share your experience or troubleshooting tips in the…

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  • CNC Alarms

    Fanuc Alarm 4603: C AXIS SYNCHRONOUS ERROR

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 4603: C AXIS SYNCHRONOUS ERROR Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description The difference between the position deviation value of C1 axis and C2 axis exceeds the parameter value (No. 16364, 16365) with the C–axis synchronous control function. Have you faced Fanuc Alarm 4603 C…

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  • CNC Alarms

    Fanuc Alarm 4602: ILLEGAL T-CODE

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 4602: ILLEGAL T-CODE Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description The specified T command is not cataloged on the tool register screen. Have you faced Fanuc Alarm 4602 ILLEGAL T-CODE on your machine? Share your experience or troubleshooting tips in the comments below to help other…

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  • CNC Alarms

    Fanuc Alarm 244: P/S ALARM

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 244: P/S ALARM Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description T series;In the skip function activated by the torque limit signal, the number of accumulated erroneous pulses exceed 32767 before the signal was input. Therefore, the pulses cannot be corrected with one distribution. Change the…

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    Fanuc Alarm 240: BP/S ALARM

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 240: BP/S ALARM Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description Background editing was performed during MDI operation Have you faced Fanuc Alarm 240 BP/S ALARM on your machine? Share your experience or troubleshooting tips in the comments below to help other CNC operators and programmers clear…

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  • CNC Alarms

    Fanuc Alarm 239: BP/S ALARM

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 239: BP/S ALARM Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description While punching was being performed with the function for controlling external I/O units,background editing was performed. Have you faced Fanuc Alarm 239 BP/S ALARM on your machine? Share your experience or troubleshooting tips in the comments…

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  • CNC Alarms

    Fanuc Alarm 233: DEVICE BUSY

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 233: DEVICE BUSY Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description When an attempt was made to use a unit such as that connected via the RS–232–C interface, other users were using it. Have you faced Fanuc Alarm 233 DEVICE BUSY on your machine? Share your experience…

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  • CNC Alarms

    Fanuc Alarm 231: ILLEGAL FORMAT IN G10 OR L50

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 231: ILLEGAL FORMAT IN G10 OR L50 Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description Any of the following errors occurred in the specified format at the programmable– parameter input.;1 Address N or R was not entered.;2 A number not specified for a parameter was entered.;3…

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  • CNC Alarms

    Fanuc Alarm 414: SERVO ALARM: n–TH AXIS – DETECTION RELATED ERROR

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 414: SERVO ALARM: n–TH AXIS – DETECTION RELATED ERROR Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description N–th axis (axis 1–4) digital servo system fault. Refer to diagnosis display No. 200, 201, and No.204 for details. Have you faced Fanuc Alarm 414 SERVO ALARM: n–TH AXIS…

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    Fanuc Alarm 413: SERVO ALARM: n–th AXIS – LSI OVERFLOW

    ByCNC Hub Team October 1, 2026

    Fanuc Alarm 413: SERVO ALARM: n–th AXIS – LSI OVERFLOW Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series Fanuc Alarm Description The contents of the error register for the n–th axis (axis 1–8) exceeded ±231 power. This error usually occurs as the result of an improperly set parameters. Have you faced…

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