● To ensure the system response speed, you are advised to connect less than 30
cascading SUN2000s on each COM port of the SmartLogger.
● The RS485 communication distance between the SUN2000 at the end and the
SmartLogger cannot exceed 1000 m.
Figure 5-4 SUN2000 cable connections (dashed box indicating optional
components)
Table 5-4 Component description
No. Component Remarks Source
A SmartLogger The SUN2000 can connect to the
SmartLogger to implement RS485
communication.
Can be
purchased from
Huawei
B AC switch ● Installed in the AC combiner box
● It is recommended that a three-
phase AC circuit breaker with a rated
voltage greater than or equal to 800
V AC and a rated current of 125 A be
congured for the SUN2000-105KTL-
H1.
● It is recommended that a three-
phase AC circuit breaker with a rated
voltage greater than or equal to 800
V AC and a rated current of 100 A be
congured for other models.
Prepared by the
customer
SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series
User Manual
5 Electrical Connections
Issue 11 (2020-08-30) Copyright © Huawei Technologies Co., Ltd. 46
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