Huawei SUN2000-4.95KTL-JPL1 User Manual page 55

SUN2000-4.95KTL-JPL1
User Manual
Ensure that the following conditions are met. Otherwise, the inverter may be
damaged, or even a fire could happen.
● The DC input voltage of the SUN2000 cannot exceed the maximum input
● The polarities of electric connections are correct on the DC input side. The
● If the polarity of the DC input power cables is reversed, 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 5-10 DC input terminals
Table 5-5 Selecting DC input terminals
Numbe
r of
Inputs
Issue 05 (2023-02-17)
WARNING
voltage under any condition.
positive and negative terminals of a PV string connect to the corresponding
positive and negative DC input terminals of the SUN2000, respectively.
switch as well as positive and negative connectors immediately. Wait until the
solar irradiance declines at night and the PV string current reduces to below 0.5
A, then turn off the DC switch and remove the positive and negative
connectors, and rectify the connection 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 cables are
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.
SUN2000 (Recommended Connection Method)
1 Connects to (2b+, 2b–)
2 Connects to (1b+, 1b–) and (2b+, 2b–)
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5 Electrical Connections
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