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String Reverse Connection
String Reverse Connection
Huawei · SUN2000 Series Solar Inverter
Was bedeutet String Reverse Connection ?
This alarm indicates that the DC SWITCH has automatically turned off due to a detected reverse polarity connection of the PV strings. Incorrect string connections can lead to improper power generation, reduced efficiency, and potential damage to the SUN2000 inverter or PV modules.
Häufige Ursachen
- Incorrect wiring of PV string positive and negative terminals, resulting in reverse polarity connection.
- Accidental reversal of DC power cable connections during installation or maintenance.
Reparaturschritte & Checkliste
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
- 1
Identify and rectify the reverse polarity connection of the PV strings.
- 2
After correcting the connection, wait for at least 3 minutes.
- 3
Set the DC SWITCH handle to OFF to complete the reset procedure.
- 4
Set the DC SWITCH handle to ON to restart the inverter.
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026
Verwandte Fehlercodes
Quelle: Huawei SUN2000 Series Solar Inverter