SP0032
Serial Communication LSI RAM Error
Fanuc · AC Spindle Motor Alpha i-Beta i Series Parameters
What does SP0032 mean?
A RAM error is detected in the Serial Communication LSI. This indicates a problem with the internal memory of the communication interface.
Common Causes
- RAM error within the Serial Communication LSI chip.
- Power supply instability to the communication board.
- Firmware corruption on the communication LSI.
- Environmental factors affecting the LSI chip.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Power cycle the CNC control and the specific communication board.
- 2
Check voltage supply to the communication board (e.g., 5V, 3.3V).
- 3
Inspect the communication LSI chip for visible damage or overheating.
- 4
If possible, update or re-flash the firmware for the communication LSI.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc AC Spindle Motor Alpha i-Beta i Series Parameters