Updating the Firmware


Qualified person

If no automatic update is set in the communication product (e.g., SMA Cluster Controller) or in Sunny Portal, you have the option of carrying out a manual firmware update.

Sufficient DC voltage required for firmware update

Only perform the update if there is sufficient solar irradiation and DC voltage. During the update, the inverter must be in feed-in operation.

The update from firmware version ≤ 2.99.99.R to ≥ 3.00.00.R is only possible with the country data set "Other standard."

To update the firmware from ≤ 2.99.99.R to ≥ 3.00.00.R the country data set must be set to Other standard. Otherwise, it is not possible to update the firmware.

  1. Before the update, set the country data set of the inverter to Other standard by using the rotary switches or via a communication product Configuring the Country Data Set).
  2. Ensure that the inverter firmware version is ≥ 3.00.00.R after the update. Set the required country data set by using the rotary switches or via a communication product Configuring the Country Data Set).

Requirements:

  • An SD memory card with a maximum memory capacity of 2 GB is required.

  • The SD memory card must be formatted as FAT32.

  • An "Update" directory must be created on the SD memory card.

  • The update file must be available and saved in the "Update" directory to the SD memory card.

Procedure:

  1. DANGER

    Danger to life due to electric shock

    1. Disconnect the inverter from all voltage sources and open the lower enclosure lid Disconnecting the Inverter from Voltage Sources).
  2. Loosen the screw of the communication assembly and slightly flip up the communication assembly.
  3. Insert the SD memory card into the slot with the slanted corner facing downward until it locks into place.
  4. Fold the communication assembly downwards and tighten the screw.
  5. Commission the inverter Commissioning the Inverter).
  6. The firmware is being updated during commissioning. As soon as the "Update completed" message is displayed, the firmware update is completed. The message is displayed for 30 seconds. Afterwards, the inverter displays its initialization messages.
  7. If the firmware update failed, repeat the process.
  8. Check the firmware version. To do this, access the user interface of the communication product or Sunny Portal.
  9. If the updated has been successfully updated, remove the SD memory card from the inverter. To do this, proceed as follows.
  10. DANGER

    Danger to life due to electric shock

    1. Disconnect the inverter from all voltage sources and open the lower enclosure lid Disconnecting the Inverter from Voltage Sources).
  11. Loosen the screw of the communication assembly and slightly flip up the communication assembly.
  12. Slightly press in the SD memory card and release it.
  13. The SD memory card jumps out of the slot.
  14. Remove the SD memory card.
  15. Fold the communication assembly downwards and tighten the screw.
  16. Commission the inverter Commissioning the Inverter).
  17. If necessary, repeat inverter detection in the communication product (see the manual for the communication product).