7.3 Powering On the Smart Array Controller (SACU)
Prerequisites
● You have completed the power-on check.
● You have put on proper personal protective equipment (PPE).
● Ensure that the power voltage of the SACU is within the operating voltage
range, and the three-phase input voltage is within the operating voltage
range of the MBUS CCO.
Procedure
Step 1 Turn on the single-phase power switch that controls the power supply from the
remote transformer station to the SACU.
Step 2 Turn on the three-phase power switch that controls the power supply from the
remote transformer station to the SACU.
● If the SACU supports the access of one MBUS route, turn on the
corresponding three-phase power switch.
● If the SACU supports the access of two MBUS routes, turn on the
corresponding three-phase power switches.
Step 3 Check that the input voltages of all switches of the SACU are within the operating
voltage ranges using a multimeter.
Step 4 Turn on the QF03 single-phase input switch on the SACU.
Step 5 Turn on the three-phase input switch on the SACU.
● If the SACU supports the access of one MBUS route, turn on the FU01 switch.
● If the SACU supports the access of two MBUS routes, turn on the FU01 and
FU02 switches.
Step 6 Adjust the support bar, close the cabinet door, and tighten the screws.
If a screw used for securing the cabinet door is lost, use the spare security torx screw
included in the accessory bag.
----End
7.4 Powering On the Distribution Transformer
Before connecting the power supply, ensure that all switches of the Distribution
Transformer are turned o.
LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual 7 Powering On the System
Issue 02 (2021-11-15) Copyright © Huawei Technologies Co., Ltd. 109
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