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CPU Fault
CPU error
Mitsubishi Electric · FR-E500 Inverter
Was bedeutet CPU Fault ?
The inverter's built-in CPU failed to complete an arithmetic operation within a predetermined timeframe, triggering an internal alarm and stopping the output. This indicates a critical internal processing error within the inverter.
Häufige Ursachen
- Internal inverter hardware or software malfunction.
Reparaturschritte & Checkliste
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
- 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 after a power cycle, contact a sales representative for further diagnosis, as this indicates a potential internal hardware failure.
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026
Verwandte Fehlercodes
Quelle: Mitsubishi Electric FR-E500 Inverter