SMA RS485-Quick Module - Manual (Page 21)

SMA America, LLC Assembly
Installation Guide RS485-QM-IA-eng-IUS111610 21
3. Shorten the cable sheath by
1
⁄
2
in. (15 mm) (B). Leave the cable shield on the cable.
4. Shorten the cable shield by
1
⁄
2
in. (15 mm) (B) and fold it back.
5. Cut off unused insulated conductors at the cable sheath to prevent a short-circuit. 3 conductors
are required. 2 conductors must be twisted.
6. Strip the conductors to a length of
1
⁄
4
in. (6 mm) (C).
7. Cover the shield with the delivered conductive
adhesive foil.
☑ The cable is prepared.
5.4 Installing the Cable Pipe and Introducing the Cable into the
Inverter
1. Push out the filler-plugs of an unused cable opening from the inside of the SMA DC-Disconnect
enclosure.
2. Install the cable pipe on the free opening of the SMA DC-Disconnect. Use matching nuts on the
inside to screw the cable pipes to the the SMA DC-Disconnect.
3. If you want to install a fault sensor on the multi-function relay: Install the distribution box on the
cable pipe. The distribution box lets you lead the power supply of the multi-function relay and
the RS485 data cable to the DC-Disconnect.
4. Connect the cable pipe for the RS485 data cable and the cable pipe for the power supply of
the multi-function relay to the distribution box.
NOTICE
Damage to the SMA DC-Disconnect through enlargement of the cable pipe openings.
• Do not enlarge openings for the cable pipes. The openings are intended for the
installation of cable pipes with a size of up to
3
⁄
4
in. (19 mm).