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ErrorLib — Industrial Fault Code Library

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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. 1

    Replace the SPM control printed-circuit board.

Browse all codes in this manual (101)
Verified technical data. Last updated: April 2026

Related Faults

0233Velocity Pulse Count Exceeded0243Position Pulse Count Exceeded0434Velocity Loop Integral Gain Overflow
Source: Fanuc Alpha i Series Servo Amplifier
Open Manual (Page 126)Search more codes in this manual