Sungrow SG250HX-US, Руководство пользователя

Страница: 59 / 106

49
figure 5-3 Single-inverter Connection
Multi-inverter Communication System
In case of multiple inverters, all the inverters can be connected via RS485 cables in the
daisy chain manner. The communication cable of the tracking system can be connected to
the port RS485_2 of any inverter in the daisy chain.
figure 5-4 Multi-inverter Connection
When more than 15 inverters are connected on the same daisy chain, in order to ensure the
communication quality, the Logger at the first end of the daisy chain needs to be equipped
with a terminal resistor of 120Ω, the inverter at the last end needs to be equipped with a
RS485-dip switch (SW2),and the shielding layer of the communication cable should be sin-
gle-point grounded.
User Manual 5 Electrical Connection