Resetting the Operation Inhibition after Detection of an Arc Fault

If the red LED is glowing and the event number 4301 is displayed in the communication product (e.g. Sunny Portal), the inverter has detected an electric arc and interrupts feed-in operation.

Requirement:

  • A communication product corresponding to the type of communication used must be available.

Procedure:

  1. DANGER

    Danger to life due to electric shock

    1. Disconnect the inverter from all voltage sources ( > Disconnecting the Inverter from Voltage Sources).
  2. Ensure that the PV modules, the connected cables and plugs are not defective.

    3. Repair or replace defective PV modules, cables or plugs.

  3. Recommission the inverter ( > Commissioning the Inverter).
  4. Access the user interface of the communication product.
  5. Reset the operation inhibition by setting one of the following parameters:

    • Select the parameter Reset operating data or Op.FncSetIstl and set to Reset operation inhibition or RSPermStopOp. This effects resetting of the operation inhibition and the inverter will start feeding in again.

      or

    • Select the parameter AFCI switched on or AfciIsOn and set to No and then back to Yes. This effects resetting of the operation inhibition and the inverter will start feeding in again.

    <  Checking the PV System for Ground Faults
    >  Recommissioning the Inverter