● To ensure the system response speed, you are advised to connect less than 30
cascaded SUN2000s on each COM port of the SmartLogger.
● If RS485 communication is used, the RS485 communication distance between
the SUN2000 at the end and the SmartLogger cannot exceed 1000 m.
● If MBUS communication is used, multi-core cables are recommended and the
maximum communication distance is 1000 m. If single-core cables are used,
the three-phase cables must be bound at an interval of 1 m
(
) and the maximum communication distance is
400 m. (When the SmartMBUS CCO01B is congured, the maximum single-
core cable communication distance is 750 m, and the distance between the
CCO and the busbar sampling cable of the transformer station cannot exceed 3
m.)
● You are advised not to upgrade the software or export logs in fast scheduling
scenarios.
● The SUN2000 must be connected to a dedicated power transformer and cannot be
connected to a low-voltage overhead power cable.
● The SUN2000-250KTL-H1, SUN2000-250KTL-H3, SUN2000-280KTL-H0,
SUN2000-300KTL-H0, SUN2000-330KTL-H1, and SUN2000-330KTL-H2 inverters
described in this document must not be connected to a winding (of the transformer
station) that has other models of inverters connected to it.
Earthing System
The SUN2000 supports the IT earthing system.
Figure 2-6 Earthing system
The SUN2000 supports the IT earthing system in PV-only scenarios. The use of the
SUN2000 in other types of earthing systems, such as TT, TN-C, and TN-C-S, is not
recommended. (If such an earthing system is encountered, contact the Company's
engineers.)
SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual 2 Overview
Issue 07 (2023-06-30) Copyright © Huawei Technologies Co., Ltd. 17
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