Huawei SUN2000 M5 Series - Maintenance; Powering Off the System Safely

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8 Maintenance

D ANGER

● Wear insulated gloves and use insulated tools to prevent electric shocks or

short circuits.

WARNING

● Before performing maintenance, power o the equipment, follow the

instructions on the delayed discharge label, and wait for a period of time as

specied to ensure that the equipment is not energized.

8.1 Powering O the System

Precautions

WARNING

● After the system is powered o, the inverter is still energized and hot, which

may cause electric shocks or burns. Therefore, wait for 5 minutes after power-

o

and then put on insulated gloves to operate the inverter.

● Power o the system before maintaining optimizers and PV strings. Otherwise,

electric shocks may occur when the PV strings are energized.

Procedure

Step 1 Send a shutdown command on the app.

Step 2 Turn o the AC switch between the inverter and the power grid.

Step 3 Set DC SWITCH to OFF.

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

User Manual 8 Maintenance

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