ELA
ELA Mode
Auto w/s
(Basic Mode)
PV
Battery
Grid
Load
Auto W/S Mode
PV Output
Grid Charge
Battery Discharge
Stand Alone
O
O
X
O
O
O
X
O
O
O
O
O
O
O
O
O
Mode
Screen Information
[ Table 8-3 : Status Description ]
[ Table 8-4 : ELA Mode ]
Description
71
I
Operating Test
8.4 Descriptions of Operation Mode
This system is composed of six modes: PV Auto, PV Only, Battery discharge, Standby, Maintenance
(forced charge), and Stand-Alone (Back-up). The event check status should not be considered as
any specific mode.
8.4.1 Status Description
8.4.3 Standby Mode
This is the standby mode before converting to operation mode (PV Auto, PV Only, Battery discharge mode).
Conversion to the operation mode (PV Auto, PV Only, Battery discharge mode) is made by the EMS decision.
O : It enters when there is a battery fault.
X : Don’t care. One of the PV and the battery
is in a steady state.
8.4.2 Operation Sequence
PV
Generation
Battery
Charge
Battery
Discharge
Grid Input
Grid Output
Load Input
The electrical power is generated by PV.
The Battery is charging.
The Battery is discharging.
Supply the electrical power of
Grid to INVERTER.
The power generated from the
PV is fed into the Grid.
The power generated by INVERTER
is supplied to Load.
ESS
ESS
ESS
ESS
ESS
ESS
Grid
Charge
PV
Output
Stand
Alone
Battery
Discharge
Battery Voltage
emergency
No
PV Voltage
Battery fault
or No Battery
No
Grid
No
Grid
No
Grid