If the DC input power cables are reversely connected and DC switch is set to ON,
do not immediately turn o the DC switch or reconnect the positive and negative
connectors. Otherwise, the device may be damaged. The caused device damage is
not covered under any warranty. Wait until the solar irradiance declines at night
and the PV string current reduces to below 0.5 A, then turn
o the DC switch and
remove the positive and negative connectors, and rectify the connection of the DC
input power cables.
----End
Follow-up Procedure
Before removing wiring terminals, ensure that the DC switch is OFF.
To remove DC input wiring terminals from the SUN2000, perform the operations
in the reverse order.
Figure 5-15 Removing cord end terminals from DC power cables
SUN2000-4.95KTL-JPL1
User Manual 5 Electrical Connections
Issue 05 (2023-02-17) Copyright © Huawei Technologies Co., Ltd. 52
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