Huawei Proprietary and Confidential
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Figure 5-22 Connecting DC input power cables
If the DC input power cable is reversely connected, do not operate the DC switches and
positive and negative connectors immediately. Otherwise, the SUN2000 will be damaged. The
caused equipment damage is beyond the warranty scope. Wait until the solar irradiance
declines at night and the PV string current reduces to below 0.5 A. Then, turn off the two DC
switches, remove the positive and negative connectors, and correct the polarity of the DC
input power cable.
----End
Follow-up Procedure
Before removing the positive and negative connectors, ensure that the two DC switches are
OFF.
To remove the positive and negative connectors from the SUN2000, insert a removal wrench
into the notch and press the wrench with an appropriate force, as shown in Figure 5-23.
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