Huawei LUNA2000-2.0MWH Series User Manual page 203

LUNA2000-2.0MWH Series Smart String ESS
User Manual
Model
LUNA2000
-2.0MWH-
2HX/
LUNA2000
-2.0MWH-
HE2HX
Step 1 Turn off the DC circuit breakers 1Q1–6Q1 of the battery racks in the ESS battery
cabins.
Step 2 Turn off the DC switches in the ESS control unit cabin (as shown by 7 in the switch
position diagram).
Step 3 Turn off all switches in the power distribution system of the ESS.
1.
2.
3.
4.
5.
6.
Step 4 Turn off the general AC cable inlet switch 1QA of the ESS (as shown by 6 in the
switch position
Step 5 If the extinguishant control panel has been powered off for more than 24 hours,
the battery switch in the extinguishant control panel must be turned off or cables
between the extinguishant control panel and the battery must be disconnected.
Step 6 Turn off the SPD switch 2FCB1 (as shown by 5 in the switch position diagram).
Issue 15 (2023-11-01)
Air Air
Conditi Conditioner
oner Switch No.
Positio
n in
the
Battery
Cabin
1/4/7/1 3FCB1, 3FCB4,
0 3FCB7, 3FCB10
Turn off the AC power switches of air conditioners (as shown by 1 in the
switch position diagram).
Turn off the extinguishant control panel switch 5FCB3, open the extinguishant
control panel, turn off the internal power switch, and turn off the lighting
system switch 1FB1, (optional) 220 V socket switch 1FB2, and CMU adapter
switch 5FCB1 in sequence (as shown by 2 in the
Turn off the battery pack fan switches (as shown by 4 in the
diagram).
Turn off the Smart Rack Controller switches (as shown by 4 in the
position diagram).
On the embedded subrack, turn off the DC input switches 7FCB1 and
(optional) 7FCB2, the exhaust fan controller switches 7FCB4 and 7FCB5, and
the air conditioner switch 7FCB6 of the control unit cabin in sequence (as
shown by 3 in the switch position
Turn off the PSU AC input switch 6FCB1.
diagram).
Copyright © Huawei Technologies Co., Ltd.
10 Powering Off the System
Battery Pack Smart Rack
Fan Switch Controller
No. Switch No.
7FCB7– 7FCB16,
7FCB12 7FCB17,
7FCB18
switch position
diagram).
DC
Circuit
Break
er No.
in the
Contr
ol
Unit
Cabin
1Q2–
6Q2
diagram).
switch position
switch
192