Installation, assembly and commissioning
for the first time
Version 1.1
Page 93 of 113
4.18.2
Off-grid application
In the expert mode, set the following parameters when installing the inverter:
Number
Name
Value
Diesel generator start
12% SOC
Load shedding of relay 10% SOC
Bat Pro 3
7% SOC
Bat Pro 2
5% SOC
Bat Pro 1
3% SOC
Figure 4-40: SMA off-grid parameters
In order to optimise the efficiency of the battery, the battery automatically executes a learning cycle at
periodic intervals, wherein the actually usable capacity of the battery is automatically determined.
In this learning cycle, the battery must cover the SOC limits of 100% and 12% as frequently as
possible.
The learning cycle starts at 100% SOC (battery full) and ends at 12% SOC. If both incidents occur in
succession and, in the meantime, the energy is not charged more than 20% SOC, then the learning
cycle is evaluated as
“successfully executed”.
The higher the frequency of execution of this learning cycle, the more precise is the SOC calculation.
The higher the frequency of execution of this learning cycle, the more the energy that the battery can
save and transfer.
