Mitsubishi · Drives
FR-A840-00250-2-60 — FR-A800 inverter: fault codes, repair & supply
The FR-A840-00250-2-60 is a Mitsubishi FR-A800 series 400 V-class inverter. Check the nameplate for the exact rating. Star Automations sources and supplies the FR-A840-00250-2-60 and repairs failed units at component level, so you can choose between a replacement and getting your existing unit restored. This is a current OEM line. Availability and price are confirmed per enquiry. Most quotes come back the same day — send the part number or the fault code on WhatsApp.
Common FR-A800 fault codes and what we usually find
Fault code wording can differ by firmware and manual revision — always confirm against the manual for your exact unit. The causes below are typical findings, not a diagnosis of your specific unit.
| Code | Meaning | Typical cause |
|---|---|---|
| E.OC1 | Overcurrent during acceleration | Short circuit, too-short acceleration, motor insulation |
| E.OC2 | Overcurrent at constant speed | Sudden load change, motor or cable fault |
| E.OC3 | Overcurrent during deceleration | Short deceleration time, load fault |
| E.OV1 | Regenerative overvoltage during acceleration | Supply surge, regenerative load |
| E.OV2 | Regenerative overvoltage at constant speed | Regenerative load, supply surge |
| E.OV3 | Regenerative overvoltage during deceleration | Short deceleration time, no braking resistor |
| E.THT | Inverter overload | Sustained overload, undersized drive |
| E.THM | Motor overload | Mechanical overload, wrong motor setting |
| E.FIN | Heat sink overheat | Blocked airflow, failed cooling fan |
| E.ILF | Input phase loss | Missing supply phase, loose terminal |
| E.LF | Output phase loss | Motor cable break, failed output stage |
| E.GF | Output-side earth fault | Motor or cable insulation failure |
| E.PE | Parameter storage element error | Failed control board memory |
| E.CPU | CPU error | Control board fault or noise |
When a FR-A840-00250-2-60 needs attention
- Inverter trips on E.OC1, E.OV or E.THT
- Fan alarm or overheating
- Display blank or inverter will not start
- Burnt smell or damaged power stage
- Trips under load
Replace or repair your FR-A840-00250-2-60
Source a replacement
Send the part number. We check sourcing from global surplus and the OEM channel and reply the same day with availability, condition and price. Advance or verified escrow applies.
Repair your existing unit
If sourcing takes longer or you want to keep your configuration, we repair at component level — power stage, gate-drive, control and supply sections — and test before dispatch.
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FR-A840-00250-2-60 — common questions
Can you supply the FR-A840-00250-2-60 in India?
Can a faulty FR-A840-00250-2-60 be repaired instead of replaced?
My FR-A840-00250-2-60 shows E.OC1 (overcurrent during acceleration). What should I do?
Is the exact part number important?
Need the FR-A840-00250-2-60 now?
Send the part number or fault code — we reply the same day. Serving Chennai, Puducherry, Bengaluru, Hyderabad, Delhi and pan-India.