Huawei SUN2000 Series User Manual page 50

SUN2000-(196KTL-H3, 200KTL-H3, 215KTL-H3)
Seires
User Manual
● Ensure that the PV module output is well insulated to ground.
● The PV strings connecting to the same MPPT circuit should contain the same
number of identical PV modules. If the number of PV modules in a PV string is
more than 10% less than that in other PV strings, the caused PV module
damage is not covered under any warranty.
● The inverter does not support full parallel connection for PV strings (full
parallel connection: PV strings connect to one another in parallel outside the
inverter and then connect to the inverter separately).
● During the installation of PV strings and the inverter, the positive or negative
terminals of PV strings may be short-circuited to ground if the power cable is
not properly installed or routed. In this case, an AC or DC short circuit may
occur and damage the inverter. The caused device damage is not covered under
any warranty.
Terminal Description
The inverter provides 14 DC input terminals, which are controlled by its three DC
switches. DC SWITCH 1 controls DC input terminals 1–4, DC SWITCH 2 controls DC
input terminals 5–9, and DC SWITCH 3 controls DC input terminals 10–14.
Figure 5-14 DC terminals
Requirements for selecting DC input terminals:
1.
2.
For example, if the number of input routes is 9–14, the DC input terminals are
selected as follows.
Numbe
r of PV
Strings
9
Issue 03 (2021-09-30)
NO TICE
The PV1 DC input terminal must be connected to a PV string.
PV1, PV3, PV4, PV6, PV8, PV9, P11, PV13, and PV14 strings are preferentially
connected.
Terminal Selection
PV1, PV3, PV4, PV6, PV8,
PV9, PV11, PV13 and PV14
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
Numb Terminal Selection
er of
PV
Strings
10 PV1, PV2, PV3, PV4, PV6, PV8,
PV9, PV11, PV13 and PV14
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