Huawei SUN2000-60KTL-M0 User Manual page 49

SUN2000-60KTL-M0
User Manual (Europe Edition)
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Ensure that the following conditions are met. Otherwise, the SUN2000 will be damaged, or
even become a fire hazard.
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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.
Figure 5-16 DC terminals
Select DC input terminals according to the following rules:
Issue 02 (2018-10-15)
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).
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.
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.
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
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