SMA SUNNY ISLAND 4.4M Operating Manual page 138

14 Cleaning and Maintenance
Restricted management functions in emergency charge mode
In emergency charge mode, the generator management is not active. The limits for voltage, current and frequency
are not monitored. Set the maximum current consumption of the Sunny Island inverter for charging the battery in
emergency charge mode. The Sunny Island does not record additional strain on the generator due to loads.
Requirements:
☐ The system must be an off-grid system.
☐ The system must be a single system (single-phase system with Sunny Island).
☐ Lead-acid batteries must be connected (for emergency charge mode of a lithium-ion battery see documentation of
the battery manufacturer).
Procedure:
• Connect the generator to connection AC1.
• Charge the battery.
• Disconnect the generator from connection AC1.
• Start the off-grid system.
Connecting the Generator to Connection AC1
1. Disconnect the inverter from all voltage sources (see Section 13, page 132).
2. Open the inverter (see Section 14.11, page 142).
3. If the system is a single-cluster system (single-phase or three-phase), the master must temporarily be connected as
single system (see quick reference guide "Off-Grid Systems" of the Sunny Island inverter).
4. If the system is a multicluster system (single-phase or three-phase), the master of the main cluster must temporarily
be connected as single system (see quick reference guide "Off-Grid Systems" of the Sunny Island inverter).
5. If a generator is installed permanently in the off-grid system, bridge the connections AC1 and AC2.
6. If a mobile generator is used, connect the generator to connection AC1 (see the Sunny Island inverter installation
manual).
Close the Sunny Island (see Section 14.11, page 142).
Charging the Battery
1. Ensure that all loads are switched off.
2. Connect or close all circuit breakers and fuse switch-disconnectors for energy sources.
3. Quickly close the load-break switch of the BatFuse and close the BatFuse (see BatFuse installation manual).
4. Start the generator.
5. Switch the Sunny Island on (see Section 10.1, page 124).
6. Activate the user interface of the inverter (see Section 8.1, page 110).
7. Log in as Installer (see Section 8.2, page 112).
8. Start the installation assistant.
9. Select [Save and next] for each step up to the step Battery configuration.
10. Select the button [New battery configuration].
11. Ensure that the parameters Type, Voltage, and Nominal capacity are set correctly (see battery manufacturer
documentation).
12. Set the parameter Nominal current to the nominal current of the generator.
13. Start the battery emergency charge. To do so, select the [Emergency charge] button.
138 SI44M-80H-12-BE-en-10
SMA Solar Technology AG
Operating Manual