Internal Storage Device Fault

What does E.PE6 mean?

This protective function activates if data corruption occurs in the FR-A800 inverter's internal storage device or if data writing fails, typically due to power-OFF during parameter operations. The fault can prevent normal operation and requires specific corrective actions depending on the faulty area indicated by Pr.890.

• Power-OFF occurring during parameter write operations (e.g., parameter clear, copy, offline auto tuning, or batch write via FR Configurator2).
• Data fault in the inverter's internal storage device due to unexpected events or degradation.
• Faulty storage area within the inverter, identified by Pr.890 values (e.g., '1, 3, 5, 7' for non-parameter settings, '2, 3, 6, 7' for standard parameters, '4, 5, 6, 7' for communication parameters).

Click steps to track your progress.

1. 1

   Check the read value of Pr.890 to identify the faulty area. If Pr.890 is '7' or smaller, proceed with the next step.

2. 2

   Perform an 'All parameter clear' operation, then an inverter reset. Be prepared to reconfigure all previously changed parameters.

3. 3

   Verify the stability of the power supply to the FR-A800 inverter and any connected control devices. Ensure no unexpected power interruptions occur.

4. 4

   If the fault persists after performing 'All parameter clear' and reset, or if Pr.890 indicates '8' or higher, contact Mitsubishi Electric service for further diagnosis.

5. 5

   Ensure parameter changes are performed with a stable power supply and avoid sudden power-offs during write operations.