SMA SI 3.0-11 Installation - Manual (Page 74)

8 Commissioning SMA Solar Technology AG
74 SI30M-44M-60H-80H-IA-en-30 Installation Manual
The following ranges result from the parameter default values:
The following ranges result from deactivating the seasonal adjustment with the default values of the parameters:
BURes 262.03 BUResSOC
Range for the battery backup system function
With seasonal adjustment (see Section 8.2.4.1,
page 69), the value of 262.03 BUResSOC applies
to the longest day of the year. When the seasonal
adjustment is deactivated, only the minimum range
is used and the SlfCsmp increased respectively.
The Sunny Island uses this range for supplying the
battery backup grid when the utility grid fails. When
the utility grid is available again, the battery is
charged by the Sunny Island with nominal power
from the utility grid.
BatRes 262.02 BatResSOC
Range for protection against deep discharge This
range can only be reached when the utility grid
fails.
The Sunny Island switches into standby mode. The
Sunny Island starts up every two hours and attempts
to charge the battery with PV energy. If the battery
cannot be charged, the Sunny Island switches back
to standby mode.
When the utility grid is available, the Sunny Island
charges the battery with nominal power from the
utility grid.
ProtRes 262.01 ProtResSOC
Range for protection during deep discharge
This range can only be reached when the utility grid
fails.
When this range is reached, the Sunny Island
switches off in order to protect the battery. When
the utility grid is available again, the system must be
charged manually ("Charging the Battery after Auto
Power Off", see Sunny Island operating manual).
Range Lead-acid battery Lithium-ion battery
Shortest day*
* December 21 (northern hemisphere) or June 21 (southern hemisphere)
Longest day**
** June 21 (northern hemisphere) or December 21 (southern hemisphere)
Shortest day* Longest day**
SlfCsmp 65% to 100% 45% to 100% 30% to 100% 28% to 100%
PVRes 60% to 65% 40% to 45% 25% to 30% 23% to 28%
BURes 15% to 60% 15% to 40% 13% to 25% 13% to 23%
BatRes 10% to 15% 10% to 15% 3% to 13% 3% to 13%
ProtRes 0% to 10% 0% to 10% 0% to 3% 0% to 3%
Range Lead-acid battery Lithium-ion battery
SlfCsmp 65% to 100% 30% to 100%
PVRes 60% to 65% 25% to 30%
BURes 15% to 60% 13% to 25%
BatRes 10% to 15% 3% to 13%
ProtRes 0% to 10% 0% to 3%
Range Parameter and explanation of the value Behavior of the Sunny Island inverter