SMA SUNNY ISLAND 4.4M Operating Manual page 133

SMA Solar Technology AG
Adjust the system configuration for the emergency charge mode (not required for single-phase
off-grid system)
1. Ensure that all loads are switched off.
2. Close the load-break switch of the battery fuse.
3. Start the generator.
4. Switch the battery inverter on (see Section 9.1, page 118).
5. Activate the user interface of the inverter (see Section 8.1, page 104).
6. Log in as Installer (see Section 8.2, page 107).
7. Save the current configuration to a file(see Section 10.6, page 123)
8. Start the installation assistant (see Section 8.5, page 112).
9. Select [Save and next] for each step up to the step Application.
10. Select the [New system configuration] button.
11. Select the option Functions for off-grid operation under Select application.
12. Select [Save and next].
13. Select the option Single phase under Type.
14. Select the option Generator under Grid-forming generator.
15. Enter the nominal current of the generator connected under Nominal current.
16. Select [Save and next] for each step up to the step Summary.
17. Once all settings are correct, select [Next] in the summary.
Charging the Battery
1. Start the installation assistant (see Section 8.5, page 112).
2. Click on [Save and next] for each step up to the step Battery configuration.
3. Select the button [New battery configuration].
4. Select Start new battery configuration in the following prompt.
5. Set the parameters Type, Voltage, and Nominal capacity to the values of the lead-acid battery connected (see
battery manufacturer documentation).
6. Select the button [Emergency charging] and confirm the following prompt with Start battery emergency
charge mode.
☑ The message Emergency charging of the battery can be started appears.
7. Start the system (see Section 9.2, page 118).
8. Activate the user interface of the inverter (see Section 8.1, page 104).
9. Log in as Installer (see Section 8.2, page 107).
10. Select Battery > Battery > Nominal voltage > Battery voltage.
11. When the battery voltage has reached at least 45 V, stop the generator.
12. Switch off the battery inverter.
Operating manual
13 Cleaning and Maintenance
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