Huawei SUN2000-2KTL-L1 User Manual page 50

SUN2000-(2KTL-6KTL)-L1
User Manual
● Before connecting the DC input power cables, ensure that the DC voltage is
● When the SUN2000 is running, it is not allowed to work on the DC input power
● If no PV string connects to a DC input terminal of the SUN2000, do not remove
Ensure that the following conditions are met. Otherwise, the SUN2000 may be
damaged, or even a fire could happen.
● The DC input voltage of the SUN2000 shall not exceed maximum input voltage
● The polarities of electric connections are correct on the DC input side. The
● If the DC input power cables are reversely connected, do not operate the DC
● Since the output of the PV string connected to the SUN2000 cannot be
● During the installation of PV strings and the SUN2000, the positive or negative
Figure 5-13 DC input terminals
Issue 03 (2020-07-20)
D ANGER
within the safe range (lower than 60 V DC) and that the DC switch on the
SUN2000 is OFF. Failing to do so may result in electric shocks.
cables, such as connecting or disconnecting a PV string or a PV module in a PV
string. Failing to do so may cause electric shocks.
the watertight cap from the DC input terminals. Otherwise, the IP rating of the
SUN2000 will be affected.
WARNING
under any circumstance.
positive and negative terminals of a PV string connect to corresponding positive
and negative DC input terminals of the SUN2000.
switch as well as positive and negative connectors immediately. Wait until the
night when solar irradiance declines and the PV string current drops to below
0.5 A. Then set the DC switch to the OFF position, remove the positive and
negative connectors, and correct the polarities of the DC input power cables.
NO TICE
grounded, ensure that the PV module output is well insulated to ground.
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 SUN2000. The caused device damage is not covered
under any warranty or service agreement.
Copyright © Huawei Technologies Co., Ltd.
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