SP9075
ROM CRC TEST ERROR
Fanuc · Alpha i Series Servo Amplifier
What does SP9075 mean?
An error occurred in a spindle ROM CRC test. This indicates data corruption in the spindle's Read-Only Memory, which can prevent the spindle system from initializing or operating correctly.
Common Causes
- Cyclic Redundancy Check (CRC) on the ROM (firmware) data has failed.
- Firmware corruption in the non-volatile memory.
- Possible hardware issue with the ROM chip.
- Data corruption during firmware update.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Replace the SPM control printed-circuit board.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Alpha i Series Servo Amplifier