Connecting the Network Cables


Qualified person

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 product 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):

  • One to two network cables

  • Where required: Field-assembly RJ45 connector.

Network cable requirements:

The cable length and quality affect the quality of the signal. Observe the following cable requirements.

  • Cable type: 100BaseTx

  • Cable category: minimum CAT5e

  • Plug type: RJ45 of Cat5, Cat5e or higher

  • Shielding: SF/UTP, S/UTP, SF/FTP or S/FTP

  • Number of insulated conductor pairs and insulated conductor cross-section: at least 2 x 2 x 0.22 mm²

  • Maximum cable length between two nodes when using patch cables: 50 m

  • Maximum cable length between two nodes when using installation cables: 100 m

  • UV-resistant for outdoor use.

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. Remove the sealing plugs from the network connection opening on the inverter.
  3. Insert the cable gland into the opening and tighten it with the counter nut from the inside.
  4. Cut into the two-hole cable support sleeve with a box cutter. This will push the cable into the grommet.
  5. Press the cable support sleeve into the two-hole cable gland.
  6. Insert the cable into the enclosure opening of the two-hole cable support sleeve.
  7. Lead one end of each network cable into the inverter.
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  9. Put the network plug of each cable into one of the network sockets of the communication assembly.
  10. Ensure that the network connector is securely in place by pulling slightly on each cable.
  11. Connect the other end of the network cable to the energy meter.