Alpha ESS SMILE5 Installation, Operation & Maintenance Manual page 83

COMMISSIONING
9.3.2.3 Check the UPS State
Please connect an essential electrical appliance to the socket of backup load. Or

switch on an essential electrical appliance already connected on the backup load
port of the inverter.
Switch on the AC breaker on the backup port of the energy storage inverter.

Switch off the external AC breaker between the grid and the energy storage

inverter.
The inverter will enter the UPS mode at once.

If the electrical appliance on backup side can work normally, it means that the

wiring of the backup has been connected correctly.
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