Growatt SPF 5000 ES + Pylontech US3000C
Closed-loop compatibility, protocol setting and cabling. Best status: verified closed loop.
Field-sourced data. Verify against the current official manual and firmware before commissioning — a wrong setting can damage equipment.
CAN Verified closed-loop confidence: high
- Protocol
- Pylontech CAN
- Inverter setting
- Setting 5: Li; Li profile L02
- Battery / DIP
- 1 0 0 0 (ON OFF OFF OFF), 9600 baud
Cable
Growatt <-> Pylontech (standard Ethernet does NOT work — custom cable)
9600 baud, custom
Wrong baud/DIP => Error 20 and Error 04.
Known errors
| Code | Cause | Fix |
|---|---|---|
| Error 20 | Wrong baud (not 9600) or wrong DIP on master battery | Set DIP 1 0 0 0; confirm 9600 baud |
| Error 04 | Same root cause as Error 20 | Resolve Error 20 |
Sources
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