Huawei SUN2000-2KTL-L0 User Manual page 56

SUN2000-(2KTL-5KTL)-L0
User Manual
After the positive and negative connectors snap into place, pull the DC input power cables
back to check that they are connected securely.
Figure 5-15 Connecting DC input power cables
If polarity of the DC input power cable is reversed and the DC switch is ON, do not turn off
the DC switch immediately or unplug positive and negative connectors. The device may be
damaged if you do not follow the instruction. This 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, and then turn off the DC switch and remove the positive and negative connectors. Correct
the string polarity before reconnecting the string to the SUN2000.
----End
Follow-up Procedure
Before removing the positive and negative connectors, ensure that the DC switch is OFF.
To remove the positive and negative connectors from the SUN2000, insert an open-end
wrench into the notch and press the wrench with an appropriate force.
Issue 01 (2018-08-30) Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
50