Chapter V Commissioning And Operation; Operation State - Alpha ESS PWG2-50K User Manual

18 Chapter V Commissioning and Operation

5.1 Operation state

After external wiring of Bi-directional Hybrid Storage Inverter is completed, and wiring is fully checked, connect
auxiliary power and close the breaker in AC side. The Bi-directional Hybrid Storage Inverter can be switched in
different modes under the conditions in Fig.5-1.
Refer to Table 5-1 for operation state of Bi-directional Hybrid Storage Inverter.
Operation
state
DC switch is closed, AC switch is closed, and the
Standby
device has no fault.
The device does not alarm, on-grid mode is set,
On-grid
and the device receives startup command.
The device does not alarm, off-grid mode is set,
Off-grid
and the device receives startup command.
Alarm Any fault information
Chapter V Commissioning and Operation
Sending power-on
Power
command
-on
＜V ＜V
V
EOD bat
Off-
grid
Fig.5-1 Operation state diagram for Bi-directional Hybrid Storage Inverter
Table 5-1 Operation state of Bi-directional Hybrid Storage Inverter
Conditions
Stand
-by
chg
Sending power-on command
Setting on-grid
charging/discharging
On-
grid
Sending power-off
command
Power
-off
RUN
module green light flickers quickly.
RUN
module green light is always on.
RUN
module green light is always on.
Main monitoring red light is always on, the
Alarm
State indication
green light flickers quickly, and the
green light is always on, and the
green light is always on, and the