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String Reverse Connection

String Reverse Connection

Huawei · SUN2000 Series Solar Inverter

¿Qué significa 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.

Causas comunes

  • 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.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Identify and rectify the reverse polarity connection of the PV strings.

  2. 2

    After correcting the connection, wait for at least 3 minutes.

  3. 3

    Set the DC SWITCH handle to OFF to complete the reset procedure.

  4. 4

    Set the DC SWITCH handle to ON to restart the inverter.

Ver todos los códigos en este manual (4)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Huawei SUN2000 Series Solar Inverter