Corrupt Memory
Parameter storage device alarm
Mitsubishi Electric · FR-E500 Inverter
What does Corrupt Memory mean?
A fault has occurred in the inverter's parameter storage device, such as an E2PROM fault. This indicates an issue with the non-volatile memory that stores inverter parameters, potentially leading to lost or corrupted settings.
Common Causes
- Excessive number of parameter write times, exceeding the rated lifespan of the memory device.
- Internal inverter hardware failure related to the parameter storage device.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Perform a power cycle by switching the inverter's power supply off, waiting for at least 10 seconds, and then switching it back on.
- 2
If the fault persists, contact a sales representative for further diagnosis or potential inverter replacement due to a critical internal memory failure.
Verified technical data. Last updated: March 2026
Related Faults
Source: Mitsubishi Electric FR-E500 Inverter