Allen-Bradley · PowerFlex 520-series Adjustable Frequency
The external non-volatile storage, often used for backing up or expanding parameter storage, has failed. This fault indicates a problem with the memory component where drive settings are permanently saved, potentially leading to lost configurations or inability to save changes.
Click steps to track your progress.
1. Power down the drive completely, then remove the external memory module and carefully clean its contacts with a lint-free swab and isopropyl alcohol.
2. Re-insert the external memory module firmly into its slot until it clicks into place (if applicable) and power up the drive.
3. If a spare external memory module is available, insert it into the drive and attempt to save or load parameters.
4. Attempt to reformat the external memory module (if supported by the drive's menu, e.g., P1-xx for memory card functions) and then save parameters.
5. Check the drive's firmware version and consult the manual for compatible external storage module types and capacities.