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7901
Reverse current has occurred in PV array
SMA · SUNNY CENTRAL 500CP XT / 630CP XT Solar Inverter
¿Qué significa 7901 ?
Reverse current has been detected in the PV array. This condition can damage the PV modules or the inverter. The inverter will shut down for 1 minute and reset automatically on day change.
Causas comunes
- Faulty PV modules.
- Shading or mismatch conditions causing reverse bias in certain modules.
- Wiring errors.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Identify and isolate the affected PV string or modules.
- 2
Check for any shading issues on the PV array.
- 3
Contact the SMA Service Line for further diagnosis.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: SMA SUNNY CENTRAL 500CP XT / 630CP XT Solar Inverter