Sungrow SH5K-20, Руководство пользователя

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2 System Solution User Manual
12
If the Smart Energy Meter is abnormal or not equipped, the inverter will run
normally, however, the battery can be charged but not allowed to discharge. In
this case the feed-in power setting will be ineffective, and the DO function for
optimized mode will be disabled.
2.3 Off-grid System
The utility grid must be a TN system for the off-grid application.
The system is not suitable for supplying life-sustaining medical
devices. It cannot guarantee backup power in all circumstances.
In an energy storage system with multiple hybrid inverters in parallel,
the hybrid inverters cannot work in EPS mode.
The system is capable of operating off-grid to ensure an emergency power
supply for protected loads in the event of a grid interruption or blackout, which
may be caused by:

islanding;

under-voltage or over-voltage;

under-frequency or over-frequency.
The error codes will be displayed on the LCD screen.
Also user may manually press the button on the STB5K-20 to switch a system
from on-grid to off-grid.
Refer to “ 6.8 STB5K-20 Connection (EPS) ” for cable connections and “ 10.4.2
Setting the EPS Function ” for the LCD settings.