Huawei SUN2000-75KTL Series User Manual page 69

SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual
Terminal Description
The solar inverter has 20 DC input terminals. DC SWITCH 1 controls PV1–PV8
(MPPT1–MPPT4), DC SWITCH 2 controls PV9–PV14 (MPPT5–MPPT7), and DC
SWITCH 3 controls PV15–PV20 (MPPT8–MPPT10).
Figure 5-21 DC terminals
When the DC input is not fully configured, the DC input terminals must meet the
following requirements:
1.
2.
For example, if the number of input routes is 1–19, the DC input terminals are
selected as follows.
Number
of PV
Strings
1
3
5
7
9
11
13
15
Issue 11 (2021-11-10)
Evenly distribute the DC input power cables on the DC input terminals
controlled by the three DC switches. DC SWITCH 1 is preferred.
Maximize the number of connected MPPT circuits.
Terminal Selection
Any even-numbered route
PV2, PV10, and PV18
PV2, PV6, PV10, PV14, and
PV18
PV2, PV4, PV6, PV10, PV14,
PV18, and PV20
PV2, PV4, PV6, PV8, PV10,
PV14, PV16, PV18, and
PV20
PV1, PV2, PV4, PV6, PV8,
PV10, PV12, PV14, PV16,
PV18, and PV20
PV1–PV4, PV6, PV8, PV10,
PV12, PV14, PV16, and
PV18–PV20
PV1–PV6, PV8, PV10, PV12,
PV14, and PV16–PV20
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
Number Terminal Selection
of PV
Strings
2 PV2 and PV10
4 PV2, PV6, PV10, and PV18
6 PV2, PV4, PV6, PV10, PV14,
and PV18
8 PV2, PV4, PV6, PV8, PV10,
PV14, PV18, and PV20
10 PV2, PV4, PV6, PV8, PV10,
PV12, PV14, PV16, PV18,
and PV20
12 PV1, PV2, PV4, PV6, PV8,
PV10, PV12, PV14, PV16,
and PV18–PV20
14 PV1–PV4, PV6, PV8, PV10,
PV12, PV14, and PV16–
PV20
16 PV1–PV6, PV8, PV10, PV12,
and PV14–PV20
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