Networking Application
The SUN2000 applies to residential rooftop grid-tied systems and small-sized
ground grid-tied PV plants. Typically, a grid-tied system consists of PV strings, grid-
tied inverters, AC switches, and power distribution units.
Figure 2-3 Networking application (single inverter)
(A) PV string (B) SUN2000 (C) AC power
distribution unit
(D) Load (E) Power meter (F) Power grid
(G) Smart Dongle (H) Optimizer
For detailed operations on devices in the network, see the following guides:
SUN2000-(600W-P, 450W-P2) Smart PV Optimizer Quick Guide
SUN2000 Smart PV Optimizer User Manual
MERC-(1300W, 1100W)-P Smart PV Optimizer Quick Guide
MERC Smart PV Optimizer User Manual
● For two PV strings connected in parallel to the same MPPT circuit, the model, quantity,
orientation, and tilt angle of PV modules in the PV strings must be the same.
● The voltage of dierent MPPT circuits must be the same.
● The MPPT voltage must be greater than the lower threshold of the full-load MPPT
range specied in the inverter technical data sheet. Otherwise, the inverter will be
derated, causing the system yield loss.
SUN2000-(12KTL-25KTL)-M5 Series
User Manual 2 Overview
Issue 10 (2024-05-14) Copyright © Huawei Digital Power Technologies Co., Ltd. 15
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