Allen-Bradley · 160
This fault indicates that the controller's EEPROM (Electrically Erasable Programmable Read-Only Memory) contains invalid or corrupted data. This memory stores critical operating parameters. Corrupted data can lead to improper controller operation or an inability to function correctly.
Click steps to track your progress.
1. Attempt to reset controller parameters to factory defaults (e.g., set P0-01 to 100 for reset, then power cycle).
2. Re-enter all necessary application-specific parameters (e.g., P1-08, P1-09) manually after a factory reset.
3. Isolate the controller from potential EMI sources by ensuring proper grounding, shielding, and separation of power and control wiring.
4. Check the controller's supply voltage stability. Ensure it remains within specified limits, especially during power-up and power-down cycles.
5. If available, try to reload controller firmware using the manufacturer's specified tool and procedure.