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Topic starter
We are aware of an issue where a W28 overload fault occurs when the battery reaches 100% SOC on firmware version 0304 for the 12000XP. Our team is actively working to resolve this and release a permanent fix as soon as possible.
In the meantime, a temporary solution is to change the battery type to lead-acid and limit the charging voltage:
- 55V for 16-cell batteries
- 52.5V for 15-cell batteries
We appreciate your patience and understanding as we work to address this issue promptly. Stay tuned for updates!
Posted : December 17, 2024 4:03 pm
Topic starter
Firmware version EG4_ceaa-0405 for the 12000XP was released this morning, addressing the false W28. If you're experiencing this issue, please update your 12000XP to the latest firmware.
Here is the changelog I received:
ceaa-0405
Based on ceaa-0304
- Improved the W028 issue in off-grid and paralleled systems
- Improved the W028 issue in off-grid and no battery systems
Posted : December 19, 2024 3:59 pm
