SUN2000L-(2KTL-5KTL)
User Manual
6 System Commissioning
Issue 02 (2017-12-12)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
59
6.3 Powering Off the System
Context
After the SUN2000L powers off, the remaining electricity and heat may still cause electric
shocks and body burns. Therefore, put on protective gloves and begin servicing the
SUN2000L 5 minutes after the power-off.
If the SUN2000L is connected to the battery, ensure that a shutdown command is sent
from the app. Power off the system after the SUN2000L has shut down. If no shutdown
command is sent from the app, the SUN2000L will shut down after the power grid is
powered off. Then, the SUN2000L will wait for 1 minute and restart (not grid-tied) to
charge the battery, which poses the risk of turning off the DC switch with power.
Procedure
Step 1
Send a shutdown command from the app. Perform operations by referring to
installer
; perform operations by referring to
user
.
Step 2
Turn off the AC switch between the SUN2000L and the power grid.
Step 3
Turn off the DC switch at the bottom of the SUN2000L.
Step 4
Turn off the DC switch between the PV string and the SUN2000L if there is any.
Step 5
If a battery connects to the battery port, turn off the battery switch.
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