Connecting the Network Cable for Local Network and Energy Meter

Qualified person

The following action describes how you can connect the inverter to the local network and additionally to an energy meter. If there are several inverters in the system, the energy meter should be connected to the inverter that is to be configured as the System Manager.

DANGER

Danger to life due to electric shock in case of overvoltages and if surge protection is missing

Overvoltages (e. g. in the event of a flash of lightning) can be further conducted into the building and to other connected devices in the same network via the network cables or other data cables if there is no surge protection. Touching live parts and cables results in death or lethal injuries due to electric shock.

  1. Ensure that all devices in the same network and the battery are integrated into the existing surge protection.
  2. When laying the network cables or other data cables outdoors, it must be ensured that a suitable surge protection device is provided at the transition point of the cable from the inverter or the battery outdoors to the inside of a building.
  3. The Ethernet interface of the inverter is classified as "TNV-1" and offers protection against overvoltages of up to 1.5 kV.

Additionally required material (not included in the scope of delivery):

  • Where required: Field-assembly RJ45 connector.

  • 1 conduit (trade size: 19.05 mm (0.75 in) or smaller with suitable reducer bush)

  • Sealing compound for sealing the join between the conduit and inverter if a weep hole has been added to the conduit

  • 1 rain-tight conduit fitting or conduit fitting for wet locations complying with UL 514B (trade size: 19.05 mm (0.75 in) or smaller with suitable reducing bush)

Procedure:

  1. Disconnect the inverter from all voltage sources .
  2. When using a self-assembly network cable, assemble the RJ45 connectors and connect them to the network cable (see connector documentation).
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  3. Remove the cover from the communication connection area.
  4. Remove the filler plug from the second enclosure opening from the right.
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  5. Insert the conduit fitting into the opening and tighten from the inside using the counter nut.
  6. Run the network cable through the conduit into the inverter.
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  7. Attach the conduit to the conduit fitting.
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  8. Plug the network cable into the LAN-1 or LAN-2 network port. Make sure that the network cable cannot touch the AC cables.
  9. Tug lightly to make sure that the network cable is secure.
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  10. If no other connections are made in the communication connection area, replace the cover.
  11. If the inverter is installed outdoors, install overvoltage protection for all components in the network.
  12. If you would like to integrate the inverter into a local network, connect the other end of a network cable to the local network (e.g., via a router).
  13. If you want to connect the inverter to an energy meter, connect the other end of the second network cable to the energy meter.
  14. If you want to connect the inverter directly to another inverter, connect the other end of the second network cable to the other inverter.
  15. If a weep hole has been added to the conduit, seal the conduit with sealing compound.

    Also see:

    Connect the utility grid together with the socket and the switch for secure power supply operation.
    Connecting the energy meter via RS485