47
Sharing algorithm in MASTER-MULTI-SLAVE connection
The S1, S2, S3, S4 chargers, in sequence, start their charge operations at the T1, T2, T3, T4 times
respectively.
In this example we consider to have a maximum available current of 50 A
The available current will be shared between the chargers. The charger which starts before has
higher priority (a higher available current value).
The remaining chargers, which start later, will have a proportional, but decreasing, current value
assigned.
S1
S2
S3
S4
Totale
T1
32 A
Not charging
Not charging
Not charging
<50 A
T2
32 A
18 A
Not charging
Not charging
=50 A
T3
32 A
18 A
6A (not available)
Not charging
>50 A
T3
27.9 A
16.1 A
6 A
Not charging
=50 A
T4
27.9 A
16.1 A
6 A
6A (not available)
>50 A
T4
23.8 A
14.2 A
6 A
6 A
=50 A
The power sharing mechanism proceeds until the all chargers have at least 6 A each, also
considering the highest priority chargers (note that no charging process is possible, in AC, if the
available current is below 6 A).
8.2.19
Error reports
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