SMA SUNNY ISLAND 4.4M Operating Manual page 80

7 Commissioning
Range
Shortest day
Deep discharge 10% to 15%
protection range
Deep discharge 0% to 10%
range
The following ranges result from deactivating seasonal adjustment with the default values of the parameters:
Range Lead-acid battery
Self-consumption 65% to 100%
range
State of charge 60% to 65%
conservation range
15% to 60%
Backup power
range
10% to 15%
Deep discharge
protection range
0% to 10%
Deep discharge
range
Parameters for battery use:
Procedure for multicluster systems with battery-backup grid
All systems for which VDE-AR-N 4105-11:2018, EN50549-1:2018, C10/11:2019, G98-1:2018, G99-1:2018,
CEI 0-21:2019 type A/type B, TOR generator type A of the European grid connection regulations according to
Regulation (EU) 2016/631 are subject shall not be set up as multicluster systems.
Multicluster systems with battery-backup grid can be set up with the Multicluster-Box 12 (MC-Box-12.3-20) and
the Grid-Connect-Box (see documentation of the Multicluster-Box and Grid-Connect-Box). When doing so, always
perform the following steps:
• In a multicluster system with battery-backup grid and increased self-consumption, set the ranges of battery
state of charge for each cluster to the same values.
• In a multicluster system with battery-backup grid and without increased self-consumption, always set the
Internal consumption increase switched on parameter to No.
If the values for the battery usage ranges are incorrect, no adjustment is possible
If all battery usage ranges combined exceed 100%, the parameters for battery usage cannot be set.
• Ensure that all battery usage ranges combined result in the value 100%.
The basic procedure for changing operating parameters is explained in another section (see Section 8.6, page 113).
Parameter
Lower lmt deep disch. protect range prior shut-
down
80 SI44M-80H-13-BE-en-15
Lead-acid battery
12) 13)
Longest day
10% to 15%
0% to 10%
Value
–
SMA Solar Technology AG
Lithium-ion battery
12)
Shortest day Longest day
3% to 13% 3% to 13%
0% to 3% 0% to 3%
Lithium-ion battery
30% to 100%
25% to 30%
13% to 25%
3% to 13%
0% to 3%
13)
Operating manual