Event 4001

Event message:

  • Reverse currents or input X polarity reversed

Corrective measures:

  • Check the correct polarity of the connected PV modules.

  • Ensure correct design and circuitry of the PV array.

  • If solar irradiation is sufficient, check whether the same voltage is present at the DC inputs.

  • Ensure that no PV module is defective.

    Event 3804
    Event 4301