Parameter storage device fault (control circuit board)

What does E.PE mean?

This fault indicates an issue with the non-volatile memory on the control circuit board of the FR-A800/A800 Plus Series drive, where drive parameters are stored. This can lead to loss of settings or an inability to store new parameters, affecting drive operation.

• Corruption of parameter data due to electrical noise, transient events, or unexpected power interruptions.
• Internal hardware fault of the control circuit board's memory component.
• Attempted parameter write operations during unstable power conditions.
• Firmware inconsistencies or corruption affecting parameter storage.

Click steps to track your progress.

1. 1

   Attempt to re-initialize the parameters to default settings and then carefully re-enter all necessary application-specific parameters.

2. 2

   Verify the stability of the control power supply (e.g., 24VDC at terminal +24).

3. 3

   Try to upload parameters from the FR-A800/A800 Plus Series drive using FR Configurator2, and if successful, download a known good parameter set.

4. 4

   Inspect the control circuit board for any visible damage or signs of overheating.

5. 5

   If the fault persists after re-parameterization and power cycling, it may indicate an internal hardware failure of the control circuit board, requiring replacement.