SUN2000-43KTL-IN-C1
User Manual
Copyright © Huawei Technologies Co., Ltd.
Ensure that the PV module output is well insulated to ground. If the SUN2000 directly
connects to the power grid with the neutral wire connected to the PE cable (for example, a
low-voltage power grid or a power grid with the neutral wire grounded), do not ground the
positive and negative terminals of PV strings. The device may be damaged if you do not
follow the instruction. This damage is not covered under any warranty or service
agreement.
During the installation of PV strings and SUN2000, the positive or negative terminals of
PV strings may be grounded 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.
Context
DC terminal selection
Figure 5-13 shows the DC terminals at the bottom of the SUN2000. Table 5-2 describes
the requirements for DC terminal selection.
The SUN2000 provides two DC switches, namely, DC SWITCH 1 and DC SWITCH 2. DC SWITCH 1
controls the first to the fourth routes of DC input terminals, while DC SWITCH 2 controls the fifth to
the eighth routes of DC input terminals.
Figure 5-13 DC terminals
Table 5-2 DC terminal selection requirements
Connects to sets 1 and 5.
Connects to sets 1, 3, and 5.
Connects to sets 1, 3, 5, and 7.
Connects to sets 1, 2, 3, 5, and 7.
Connects to sets 1, 2, 3, 5, 6, and 7.
Connects to sets 1, 2, 3, 4, 5, 6, and 7.
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