NONVOLATILE_MEMORY_COLLATION_ERROR
Nonvolatile Memory Data Collation Error
Fanuc · Alpha i series AC Servo Motor
What does NONVOLATILE_MEMORY_COLLATION_ERROR mean?
An error was detected in the data collation check for the nonvolatile memory. This indicates potential data corruption in stored parameters or system configurations, requiring re-entry of parameters.
Common Causes
- Data corruption in the nonvolatile memory
Repair Steps & Checklist
Click steps to track your progress.
- 1
Turn the power off, then back on
- 2
Re-enter the parameters
- 3
If this alarm recurs, replace the servo amplifier module
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Alpha i series AC Servo Motor