SMA 485PB-NR - Manual (Page 14)

Electrical Connection SMA Solar Technology AG
14 485PB-SB-NR-IEN101311 Installation Guide
4.3.3 Connecting the Cable to the Communication Interface
1. Connect the wires to the screw terminals (2, 5, 7)
below the interface port (torque: 0.23 Nm).
Write down the colors of each wire:
2 ____________________________
5 ____________________________
7 ____________________________
2. Set the termination where necessary (see Page 15).
3. Close the inverter as described in the inverter
documentation.
☑ The communication interface is connected.
Cabling plan for an RS485 communication bus
See the RS485 cabling plan poster for the cabling, wiring, and termination of an RS485
communication bus.
Cabling plan for SB/WB and SWR inverter models
The cabling plan for SB/WB and SWR inverter models is identical.
NOTICE!
Damage to the terminal block if wire sleeves are used.
Wire sleeves deform when tightening the screw terminals and can no longer be removed
from the terminal block afterwards.
• Do not use wire sleeves when connecting the communication cable.