Powering Off Ess Devices; Powering Off The Power Supply Loop Of The Ac Power Distribution Cabinet; Routine Maintenance; Unscheduled Maintenance - Huawei LUNA2000-200KWH-2H1 Smart String ESS Maintenance Manual

LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual

2.2.3 Powering Off ESS Devices

Powering Off the Smart PCS
Step 1 Wear proper PPE.
Step 2 Turn off the AC switch between the Smart PCS and the grid.
Step 3 Open the AC maintenance compartment door, install a support bar, and use a
multimeter to measure the voltage between the AC terminal block and the
ground. Ensure that the AC side of the Smart PCS is disconnected.
Step 4 Turn off DC switch 1Q2 in the ESS.
Step 5 Open the DC maintenance compartment door, install a support bar, and use a
multimeter to measure the voltage between the DC terminal blocks. Ensure that
the DC side of the Smart PCS is disconnected.
----End
Powering off the ESS
Step 1 Turn off all switches in the power distribution system of the ESS.
1.
2.
3.
4.
Step 2 Turn off the AC main switch 1FCB.
Step 3 (Optional) Turn off the UPS cable inlet switch 5FCB.
Step 4 Turn off the DC switch 1Q1.
----End
2.2.4 Powering Off the Power Supply Loop of the AC Power
Distribution Cabinet
Step 1 Turn off the switches between the AC power distribution cabinet and the ESS.
----End

2.3 Routine Maintenance

2.3.1 Unscheduled Maintenance

Log in to the SmartLogger WebUI/CMU WebUI/FusionSolar app/SmartPVMS and
check whether there are major or minor alarms.
Issue 02 (2023-02-28)
On the embedded power subrack (SK1), turn off the DC/DC switch 2FCB1, DC
light power switch 2FCB2, TCUE switch 2FCB3, fan 1 switch 2FCB6, fan 2
switch 2FCB7, air conditioner 1 switch 2FCB8, and air conditioner 2 switch
2FCB9 in sequence.
Turn off switch 1FB1 of the 220 V maintenance socket.
Turn off the PSU switch 1FCB2.
Turn off the 12 V adapter switch 1FCB1.
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