Connecting the energy meter
Qualified person
This section describes how to connect the energy meter to the inverter.
The energy meter measures the flow of energy out of and into the utility grid. The measured values of the energy meter are transmitted to the inverter and influence the charging behavior of the battery. The energy meter data may not be used for billing purposes.
Additionally required material (not included in the scope of delivery):
1 approved energy meter (SMA Energy Meter or Sunny Home Manager)
1 network cable
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 2 nodes when using patch cables: 50 m
Maximum cable length between 2 nodes when using installation cables: 100 m
UV-resistant for outdoor use.
Procedure:
- Disconnect the product from voltage sources ( > Disconnecting the Inverter from Voltage Sources).
- Remove the sealing plugs from the network connection opening on the inverter.
- Insert the cable gland into the opening and tighten it with the counter nut from the inside.
- Cut into the two-hole cable support sleeve with a box cutter. This will push the cable into the grommet.
- Press the cable support sleeve into the two-hole cable gland.
- Insert the cable into the enclosure opening of the two-hole cable support sleeve.
- Lead one end of each network cable into the inverter.
- When using a self-assembly network cable, assemble the RJ45 connectors and connect them to the network cable (see connector documentation).
- Put the network plug of each cable into one of the network sockets of the communication assembly.
- Ensure that the network connector is securely in place by pulling slightly on each cable.
- If the inverter is installed outdoors, install surge protection device.
- If you would like to establish a direct connection, connect the other end of the network cable directly to the end device.
- If you would like to integrate the inverter into a local network, connect the other end of the network cable to the local network (e.g. via a router).
