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.
- Ensure that all devices in the same network are integrated in the existing overvoltage protection.
- When laying the network cable outdoors, ensure that there is suitable surge protection at the network cable transition from the product outdoors to the network inside the building.
- The Ethernet interface of the product 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 network cable
Where required: Field-assembly RJ45 connector for the network cable. SMA Solar Technology AG recommends the connector "MFP8 T568 A Cat.6A" from "Telegärtner".
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:
- When using a self-assembly network cable, assemble the RJ45 connector and connect to the network cable (see connector documentation).
- Remove the swivel nut from the cable gland for the network connection on the connection cap.
- Thread the swivel nut over the network cable.
- Press the cable support sleeve out of the cable gland.
- Remove one filler plug from the cable support sleeve.
- Route the network cable through an opening in the cable support sleeve.
- Thread the network cable through the cable gland.
- Insert the RJ45 plug of the network cable into the network pin connector on the inverter until it snaps into place.
- Ensure that the RJ45 plug is securely in place by pulling slightly on the network cable.
- Press the cable support sleeve back into the cable gland.
- Screw the swivel nut hand-tight onto the cable gland.
- Tighten the connection cap with the three screws (TX20, torque: 3.5 Nm).
- Screw the swivel nuts hand-tight onto the cable gland of the AC connection and the cable gland of the network cable.
- If the inverter is installed outdoors, install overvoltage protection.
- If you would like to establish a direct connection, connect the other end of the network cable directly to the computer.
- 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).
