Procedure
Step 1 Send a shutdown command on the app.
Step 2 Turn o the AC switch between the SUN2000 and the power grid.
Step 3 Turn o the DC switch at the bottom of the SUN2000.
Step 4 (Optional) Install the locking screw for the DC switch.
Figure 8-1 Installing a locking screw for the DC switch
Step 5 Turn o the DC switch between the SUN2000 and PV strings.
----End
8.2 Routine Maintenance
To ensure that the SUN2000 can operate properly for a long term, you are advised
to perform routine maintenance on it as described in this chapter.
Before cleaning the system, connecting cables, and maintaining the grounding
reliability, power o the system.
SUN2000-(8KTL-20KTL)-M2
User Manual 8 Maintenance
Issue 11 (2023-02-07) Copyright © Huawei Technologies Co., Ltd. 93
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