SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
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SMA Solar Technology AG Battery Management<br />
13.4.4 Manual Equalization Charge<br />
The parameter "520.01 ChrgSelMan" activates the manual equalization charge on the <strong>Sun</strong>ny Island.<br />
If a generator is connected to the system, it is automatically started and stopped once the equalization<br />
charge is completed.<br />
Carrying out the equalization charge<br />
An equalization charge should be performed at least once a year. After a long period of<br />
time without charging, e. g., in the case of plants which are only operated seasonally,<br />
manual equalization charges are required at the end or at the beginning of the season.<br />
13.4.5 Silent Mode<br />
In addition to the float charge, the silent mode can only be used ("224.01 SilentEna" parameter)<br />
when operating with the power distribution grid.<br />
The main purpose of the silent mode is to save energy by switching from charge mode to standby<br />
mode in utility backup systems where the <strong>Sun</strong>ny Island is predominantly in float charge.<br />
The silent mode is activated after the time set for float charge ("224.02 SilentTmFlo" parameter) has<br />
expired. The <strong>Sun</strong>ny Island remains in silent mode for a fixed time ("224.03 SilentTmMax" parameter)<br />
or until the battery voltage per cell is 0.14 V lower than the set voltage ("222.10 ChrgVtgFlo"<br />
parameter). This ensures that the battery is always fully charged, even in silent mode. If a grid failure<br />
is detected during silent mode, the <strong>Sun</strong>ny Island makes a stand-alone grid available within 10 sec.<br />
<strong>Technical</strong> <strong>Description</strong> SI<strong>5048</strong>-TB-TEN110340 103