SMA SUNNY BOY 3.8-US Instructions D'installation page 39

SMA Solar Technology America LLC
Additionally required material (not included in the scope of delivery):
☐ 1 approved energy meter (WattNode
Continental Control Systems, LLC)
☐ One data cable
☐ 2 electrical current strength transducers from Continental Control Systems, LLC (mechanical
and electrical characteristics of the selected electrical current strength transducers must be in
accordance with the installation on site)
Cable requirements:
☐ Cross-section: at least 2 x 2 x 0.22 mm² (2 x 2 x 24 AWG)
☐ Shielding: yes
☐ Twisted pair conductors
☐ UV-resistant for outdoor use.
☐ Maximum cable length: 10 m (33 ft)
Assignment of the terminal block:
Plug
2 3 5 7
Procedure:
1. Strip the RS485 communication cable 50 mm (2 in).
2. Trim the cable shield to a length of 15 mm (0.59 in)
and fold it over the cable sheath.
3. Strip the insulation on the insulated conductors each by 6 mm (0.24 in).
4. If necessary, trim unused insulated conductors flush with the cable sheath or fold it over the
cable sheath.
Installation Manual
®
Modbus WNC-3Y-208-MB or WNC-3D-240-MB from
Position Assignment
2 Data+ (D+)
3 Not assigned
5 Ground (GND)
7 Data (D-)
6 Electrical Connection
SBSxx-US-10-IA-xx-11 39