CA UTION
Ensure that there are no cable residues, scraps, or conductive dusts in the
maintenance compartment.
----End
5.5 Connecting DC input power cables
Precautions
D ANGER
● Before connecting the DC input power cable, ensure that the DC voltage is
within the safe range (lower than 60 V DC) and that the two DC switches on
the SUN2000 are OFF. Failing to do so may result in electric shocks.
● When the SUN2000 is grid-tied, it is not allowed to work on DC circuit, such as
connecting or disconnecting a PV string or a PV module in a PV string. Failing
to do so may cause electric shocks or arcing (which may further cause fire).
WARNING
Ensure that the following conditions are met. Otherwise, the SUN2000 will be
damaged, or even become a fire hazard.
●
The open-circuit voltage of each PV string is always lower than or equal to
1100 V DC.
●
The positive and negative terminals of a PV string are connected to
corresponding positive and negative DC input terminals of the SUN2000.
NO TICE
● 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.
● During the installation of PV strings and SUN2000, the positive or negative
terminals of PV strings may be short-circuited to ground if power cables are not
properly installed or routed. In this case, an AC or DC short circuit may occur
and damage the SUN2000. The caused equipment damage is beyond the
warranty scope.
Terminal Description
The SUN2000 provides 12 DC input terminals, among which terminals 1 to 6 are
controlled by DC switch 1 and terminals 7 to 12 are controlled by DC switch 2.
SUN2000-(60KTL, 65KTL)-M0
User Manual (Mexico Edition)
5 Electrical Connections
Issue 06 (2020-10-12)
Copyright © Huawei Technologies Co., Ltd.
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