Maintenance; Powering Off The System; Routine Maintenance - Huawei SUN2000 Series User Manual

SUN2000-(12KTL-25KTL)-M5 Series
User Manual

8.1 Powering Off the System

Precautions
● After the system is powered off, the inverter is still energized and hot, which
● Power off the system before maintaining optimizers and PV strings. Otherwise,
Procedure
Step 1 Send a shutdown command on the app.
Step 2 Turn off the AC switch between the inverter and the power grid.
Step 3 Set DC SWITCH to OFF.
Step 4 (Optional) Install the locking screw next to DC SWITCH.
Step 5 Turn off the DC switch between the inverter and PV strings.
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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.
Issue 01 (2022-06-15)
WARNING
may cause electric shocks or burns. Therefore, wait for 5 minutes after power-
off and then put on protective gloves to operate the inverter.
electric shocks may occur when the PV strings are energized.
Copyright © Huawei Digital Power Technologies Co., Ltd.
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Maintenance

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