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8.3 Turning off the System
CAUTION
When turning off the system, make sure to turn off the battery circuit breaker.
it is very important to prevent battery deep discharge.
1. Turn PV Switch on INVERTER unit to OFF position.
2. Make sure that ESS has stopped.
3. Turn off AC circuit breaker in control cabinet at grid side.
4. Open bottom covers of battery cases.
5. Turn off Battery circuit breaker.
Note: After turning off the system, if you want to use ESS hybrid inverter for PV only, turn the PV switch to
ON position and turn on the AC circuit breaker in the control cabinet.
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
Mode
PV
Generation
Battery
Charge
Battery
Discharge
Grid Input
Grid Output
Load Input
Screen Information
ESS
ESS
ESS
ESS
ESS
ESS
[ Table 8-3 : Status Description ]
Description
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.
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72
Operating Test
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