Table 3-8 Mapping relationship
Cascading
Mode
SUN2000
SUN2000
SUN2000
Sdongle
SUN2000-(2KTL-6KTL)-
L1
SUN2000-(2KTL-6KTL)-L1 SUN2000-(2KTL-6KTL)-L1
Sdongle
SUN2000-
(3KTL-10KTL)-M1
SUN2000-(3KTL-10KTL)-
M1
SUN2000-(3KTL-10KTL)-
M1
NO TE
The parameters of each battery need to be set separately. When the grid charging function
is enabled, the surplus power generated by one inverter can be used to charge the other
inverter.
WARNING
In the off-grid state, the output phases of cascaded inverters are different. The
load outputs of the Backup Boxes connected to each inverters cannot be
connected in parallel. As shown in the following figure, the P-1 output is
connected to primary O-1 and the P-2 output is connected to O-2. The P-1 and
P-2 load outputs cannot be connected in parallel.
(A) PV string
(B) DC switch
(C) SUN2000
(D) AC switch
(E) ACDU
(F) Smart Power Sensor
(G) Power grid
(H) LUNA2000
(I) 4G Smart Dongle
(J) WLAN-FE Smart
Dongle
(K) Router
(L) FusionSolar
management system
(M) FusionSolar app
(N) Load
(O) Important Load
(P) Backup
(Q) SmartLogger
NO TE
indicates a power cable,
indicates a signal cable,
indicates
wireless communication.
3.2.2 Setting the Grid-tied and Off-grid ESS Mode
The grid-tied and off-grid ESS switches the inverter to the grid connection status
through the Backup Box. When the grid fails, the ESS supplies power to primary
loads in backup mode. When the grid recovers, the ESS automatically switches
back to the grid-tied mode.
LUNA2000-(5-30)-S0
User Manual
3 Application Scenarios and Settings
Issue 07 (2022-01-10)
Copyright © Huawei Technologies Co., Ltd.
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