This page continues the FANUC alarm reference for alarm numbers 0401–1000.
These alarm references apply to:
- FANUC Series 0i-Model D
- FANUC Series 0i Mate-Model D
The alarms in this section may appear as:
- PS alarms – Program-related alarms
- BG alarms – Background editing alarms
- SR alarms – Communication alarms
Important: PS, BG, and SR alarms share the same numeric alarm code system.
The number alone does not identify the alarm type. The actual prefix is shown only on the CNC screen, such as PS0412, BG0518, or SR0601.
This page is useful for:
- CNC operators
- Maintenance engineers
- FANUC service technicians
- CNC programmers
- Buyers checking alarm meaning before repair or replacement
FANUC CNC Alarm Codes Table (0401–1000)
| Alarm No. | Message | Description |
|---|---|---|
| 0412 | Illegal G Code Used | A G code that cannot be used was specified. |
| 0438 | Incorrect Parameters During Tool Direction Compensation | During tool tip keeping type tool-axis direction control (G53.6), the parameter settings are incorrect. Possible causes include: interpolation acceleration / deceleration before movement is invalid (set parameter No.1660), rapid traverse interpolation acceleration / deceleration before movement is invalid (set parameters No.1401#1, No.19501#5, No.1671), machine configuration parameters No.19680–No.19714 are incorrect, the axes set by parameters No.19681 / No.19686 are not rotary axes, or the basic 3 axes have not been set in parameter No.1022. |
| 0445 | Incorrect Axis Feed Command | [T] In rotation control mode, positioning was commanded. Check the SV rotation control mode signal (Fn521). |
| 0446 | Not a Single-Command Block | [T] G96.1, G96.2, G96.3, or G96.4 was specified in the same block as another command. Revise the program. |
| 0447 | Incorrect Setting Data | The setting for the spindle control axis using a servo motor is incorrect. Check the parameters related to the spindle control function using a servo motor. |
| 0455 | Command Error in Grinding Fixed Cycle | In the grinding fixed cycle: [M] 1) The signs of I, J, and K commands are inconsistent. 2) The movement amount of the grinding axis has not been specified. |
| 0456 | Parameter Setting Error in Grinding Fixed Cycle | Parameter setting related to the grinding fixed cycle is incorrect. Possible causes include: 1) wrong axis number setting for the grinding axis (parameters No.5176–5179), [M] 2) wrong axis number setting for the dressing axis (parameters No.5180–5183), or 3) overlap of cutting axis, grinding axis, and dressing axis (M series only). |
| 0518 | CODE OF CONTROL-IN IS NOT EXIST | There is a control-in “)” without a corresponding comment start. When a comment begins with control-out “(”, it must end with control-in “)”. |
| 0601 | Feed Command Issued to Servo-Motor Spindle | A movement command was specified for a spindle control axis based on a servo motor. Revise the program. |
| 0602 | Incorrect Spindle Command (Servo-Motor Spindle) | The spindle control axis based on a servo motor has not been selected correctly. |
If you are troubleshooting FANUC alarms on a 0i-Model D or 0i Mate-Model D system, REACO CNC can support you with:
- FANUC CNC spare parts
- FANUC robot parts
- Mitsubishi CNC parts
- Repair service
- Worldwide shipping
For faster support, please send your alarm code, machine model, or part number.
Reference Source: Beijing FANUC. This article is based on technical documentation provided by Beijing FANUC.
For More Fanuc CNC repair Cases and technical articles, please back to Fanuc Technical Support Center.
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