This FANUC alarm code list should help you properly diagnose your CNC error message.
What Is a FANUC Alarm Code?
A FANUC alarm code—also known as a fault or error code—is how a CNC system signals that something isn’t operating correctly. These codes appear on the control panel and point to electrical, mechanical, or program-related issues. Whether it’s a syntax error in your program or a drive overload, the alarm code helps pinpoint the underlying problem.
Common FANUC Alarm Codes and What They Mean
Here’s a curated list of frequently encountered FANUC alarm codes and their meanings across different systems like CNC controls, servo amplifiers, spindle drives, and system boards:
| Kode weker | Katrangan | Applies To |
|---|---|---|
| 1 | Motor overheat — spindle or motor inside is above temperature limit | AC Serial Spindle Drives |
| 33 | Insufficient DC link charging — power supply isn’t fully charging | AC Serial Spindle Drives |
| 8, 9, A | Abnormal (high) current detected on corresponding axis | Alpha i Servo Amplifier |
| 5 | DCOH: excessive regenerative discharge | AC Servo Amplifier |
| 368, 369 | Firmware requires update | Beta / Alpha Amplifiers |
| 910–914 | Parity errors in RAM modules (SRAM/DRAM) | CNC System Boards |
| 920, 921 | Servo amplifier watchdog or parity errors for specific axis cards | CNC System Boards |
| 930 | CPU interrupt fault | CNC System Boards |
| 401-409, 438-449 | Encoder, servo detection, spindle communication, and inverter high current | Drive / Amplifier Alarms |
Use the list below to interpret what exactly the fault code is trying to communicate. If you require a replacement part, know that CIT stocks thousands of FANUC CNC replacements. Get your new FANUC servo amplifier or check out our FANUC servo motors. To order a replacement part or a repair job, email Inquiry@fanucwholesale.com.comWaca rangkeng-.
Layanan CIT
Yen CNC sampeyan nampilake Fanuc Spindle Drive Alarm 01, CIT bisa ngirim layanan perbaikan sing cepet lan dipercaya kanggo drive spindle sing salah utawa sampeyan bisa tuku unit sing mentas dianyari.
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