Huawei SUN2000 monitoring integration
String-inverter telemetry and fault-code mapping for Huawei SUN2000.
NuraVolt ingests Huawei SUN2000 (-196/200/215KTL-H3) string-inverter data via Modbus TCP or the FusionSolar API, normalises it to a common schema, and maps SUN2000 fault codes (DC, grid, and hardware) onto NuraVolt’s physics-informed fault taxonomy so alarms become diagnoses, not just codes.
Supported protocols
- Modbus TCP
- FusionSolar / Huawei NMS API
- CSV export
Data points we ingest
- Per-MPPT and per-string current and voltage
- AC active/reactive power, frequency, grid voltage
- Heat-sink / IGBT temperature and internal fan status
- Insulation resistance (Riso) and DC bus voltage
- Inverter fault and alarm codes with timestamps
Notable fault codes
- 2001
- High string DC voltage — Voc exceeds 1500 V on a cold, long string.
- 2002
- Low insulation resistance — water ingress or backsheet/cable damage.
- 2031
- String current backflow — mismatched string lengths or shading.
- 3001
- Grid overvoltage — PCC above MV setpoint, common in weak grids.
- 6001
- IGBT overtemperature — cooling-fan failure or blocked heat sink.
- 6011
- Internal fan abnormal — bearing wear or dust ingress.
Setup
Point NuraVolt at the inverter Modbus register map or connect the FusionSolar NMS API for fleet pull. NuraVolt handles the register-to-schema mapping and unit conversion, and applies the SUN2000 auto-reset behaviour (up to 3 retries in 10 minutes before latch) when deciding whether a soft trip is worth a ticket.
Frequently asked questions
See also
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