8 Maintenance
● Wear personal protective equipment and use dedicated insulated tools to avoid
electric shocks or short circuits.
● Before performing maintenance, power o the equipment, follow the
instructions on the delayed discharge label, and wait for a period of time as
specied to ensure that the equipment is not energized.
8.1 System Power-O
Precautions
● If two inverters share the same AC switch on the AC side, power o the two
inverters.
● After the inverter powers o, the remaining electricity and heat may still cause
electric shocks and body burns. Therefore, put on personal protective
equipment (PPE) and begin servicing the inverter fteen minutes after power-
o.
Procedure
Step 1 Run a shutdown command on the SUN2000 app, SmartLogger, or network
management system (NMS).
For details, see the user manual of the corresponding product.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual 8 Maintenance
Issue 19 (2023-12-20) Copyright © Huawei Technologies Co., Ltd. 91
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