Product Specifications - Huawei Backup Box-B0 Quick Manual

9

Product Specifications

Single-Phase Backup Box
Wiring Requirements
Circuit
No.
Breaker Grid
(QF)
Power
1 On
off
Power
2 On
on
Power
3 On
off
Three-Phase Backup Box
Wiring Requirements
Circuit
No.
Breake Grid
r (QF)
Power
1 On
off
Power
2 On
on
Power
3 On
off
c. If the conduction status of an item is inconsistent with that in the tables, the Backup Box is
damaged.
2. If the mains recovers but the inverter still works in off-grid state (LED1 and LED2 are steady
orange), contact the customer service personnel or dealer for repair.
3. If the off-grid mode is enabled when no Backup Box is connected, an alarm indicating that
the Backup Box is abnormal is reported when the AC power supply is disconnected. In this
case, the fault cannot be rectified. The fault is rectified only after the inverter and battery are
powered off.
4. If the Backup Box is used for the first time and is not used later, you must disable the off-
grid mode when the inverter is running properly. Otherwise, you need to power on the
inverter again and modify the settings.
5. If the single-phase Backup Box generates abnormal noises during repeated switching, check
whether the inverter AC terminal is reversely connected to the power grid AC terminal.
Detection Terminal
X4-1 & X4-2
Inverter COM-1 &
COM-2
Shutdown Connected
Shutdown Disconnected
Off-grid
Connected
output
Detection Terminal
X4-1 & X4-2
Inverter
COM-1 &
COM-2
Shutdown Connected
Shutdown Disconnected Connected
Off-grid
Connected
output
X3-6 & X3-10
X2-1 & X3-2
INVERTER-N
GRID-L &
&
INVERTER-L
INVERTER-PE
Disconnected Disconnected
Connected Disconnected
Disconnected Connected
X2-1 & X3-1 X3-3 & X3-8
GRID-L1 & INVERTER-L2
INVERTER-L1 & INVERTER-N
Disconnected Disconnected
Disconnected
Disconnected Connected
14
X3-6 & X1-
2
X2-1 & X1-1
INVERTER-
GRID-L &
N
LOAD-L
& LOAD-
N
Disconnected Connected
Connected Connected
Disconnected Connected
X2-1 & X1-1 X3-3 & X1-2
GRID-L1 & INVERTER-L2
LOAD-L & LOAD-N
Disconnected Disconnected
Connected Disconnected
Disconnected Connected