- Error code
- 6 codes
- Category
- Grid overfrequency
- Manufacturer
- REFUsol
1What the error means
The following error codes of REFUsol inverters belong to the same fault family: grid over-frequency. Find the code shown by your inverter in the table and see what it means.
2Possible causes
- Grid frequency instability
- Operation on a generator or a weak grid
- Wrong country setting
3What to do
- Check the country setting and the frequency limits in the parameters.
- Note whether it coincides with specific hours or with generator operation.
- If the grid is stable and the fault persists, check the measuring circuit.
The codes in detail
| Code | What it means |
|---|---|
| 0x090008 | Over-frequency — the grid frequency exceeded the limit |
| 0x090018 | The power stage detected grid over- or under-frequency |
| 0x09002D | Islanding detected (RoCoF) — the grid section was cut off and the inverter disconnected |
| 0x0A0012 | Over-frequency — the grid frequency exceeded the limit |
| 0x0A0023 | Islanding detected — the grid section was cut off and the inverter disconnected |
| 0x0A0108 | The power stage detected grid over- or under-frequency |
4Repair by Aineas
You send the inverter to our lab in Thessaloniki. We diagnose it, inform you of the fault and the cost, and the repair starts only after you approve it. Every inverter is tested under simulated operating conditions before delivery.