Huawei SUN2000-90KTL Series User Manual page 71

SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series
User Manual
Terminal Description
The SUN2000 provides 12 DC input terminals, which are controlled by its two DC
switches. DC SWITCH 1 controls DC input terminals 1–6 (MPPT1–3) and DC
SWITCH 2 controls DC input terminals 7–12 (MPPT4–6).
Figure 5-11 DC terminals
When DC inputs are not fully configured, the input terminals should meet the
following requirements:
1.
2.
For example, if the number of input routes is 1–11, the recommended DC input
terminals are as follows:
Number
of PV
Strings
1
3
5
7
9
11
Requirements on Cable Specifications
Cables with high rigidity, such as armored cables, are not recommended, because
poor contact may be caused by the bending of cables.
Issue 16 (2023-12-20)
Evenly distribute the DC input power cable on the DC input terminals
controlled by the two DC switches.
Maximize the number of connected MPPT circuits.
Terminal Selection
Connects to any even-
number route.
Connects to routes 2, 6, and
10.
Connects to routes 2, 4, 6,
10, and 12.
Connects to routes 2, 4, 6,
8, 9, 10, and 12.
Connects to routes 1, 2, 4,
6, 7, 8, 9, 10, and 12.
Connects to routes 1, 2, 3,
4, 6, 7, 8, 9, 10, 11, and 12.
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
Number Terminal Selection
of PV
Strings
2 Connects to routes 2 and
10.
4 Connects to routes 2, 6, 10,
and 12.
6 Connects to routes 2, 4, 6,
8, 10, and 12.
8 Connects to routes 1, 2, 4,
6, 8, 9, 10, and 12.
10 Connects to routes 1, 2, 4,
6, 7, 8, 9, 10, 11, and 12.
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