Huawei SUN2000 Series User Manual page 49

SUN2000-(8KTL-20KTL)-M2
User Manual
Ensure that the following conditions are met. Otherwise, the SUN2000 may be
damaged, or even a fire could happen.
● PV modules connected in series in each PV string are of the same specifications.
● The open-circuit voltage of each PV string is always lower than or equal to
● The maximum short-circuit current of each PV string must be lower than or
● The DC input power cable is correctly connected. The positive and negative
● If the DC input power cable is reversely connected, do not operate the DC
● Because the output of the PV string connected to the SUN2000 cannot be
● The PV strings connecting to the same MPPT route should contain the same
● During the installation of PV strings and the SUN2000, the positive or negative
Terminal Description
Figure 5-12 Terminals
(1) Terminals of DC input 1
Issue 01 (2020-07-02)
WARNING
1080 V DC.
equal to 15 A.
terminals of a PV module are connected to corresponding positive and negative
DC input terminals of the SUN2000.
switch and positive and negative connectors. Wait until the solar irradiance
declines at night and the PV string current reduces to below 0.5 A, and then
turn off the DC switch. Remove the positive and negative connectors to correct
the polarity.
NO TICE
grounded, ensure that the PV module output is insulated to ground.
number and model of PV modules or Smart PV optimizers.
terminals of PV strings may be short-circuited to ground if power cables are not
properly installed or routed. An AC or DC short circuit may occur and damage
the device when the SUN2000 is operating. The caused device damage is not
covered under any warranty.
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
(2) Terminals of DC input 2
42