8
Maintenance
8.1 SUN2000 Power-Off
Important Notes
WARNING
● After the SUN2000 powers off, the remaining electricity and heat may still
cause electric shocks and body burns. Therefore, put on protective gloves and
begin operating the SUN2000 five minutes after the power-off.
● Before maintaining the optimizer and PV string, turn off the AC switch and DC
switch. Otherwise, electric shocks may occur as the PV string is energized.
Procedure
Step 1 Turn off the AC switch between the SUN2000 and the power grid.
Step 2 Turn off the DC switch at the bottom of the SUN2000.
Step 3 (Optional) Install the locking screw beside the DC switch.
Figure 8-1 Installing the locking screw for the DC switch
Step 4 Turn on the DC switch between the PV string and the SUN2000 if there is any.
Step 5 (Optional) Turn off the battery switch between the SUN2000 and batteries.
----End
SUN2000-(3KTL-10KTL)-M1
User Manual
8 Maintenance
Issue 02 (2020-11-20)
Copyright © Huawei Technologies Co., Ltd.
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