SMA EV CHARGER 7.4 Manual De Operación página 23

SMA Solar Technology AG
If communication between Sunny Home Manager and the charging stations fails, only single-phase
or three-phase charging vehicles can be charged. Two-phase charging vehicles are also limited to
single-phase charging in this case. You can set fallback values that take effect in the event of a
communication breakdown.
16
12
L3
8
4
16
12
L2
8
4
16
12
L1
8
4
Figure 7: Limiting a two-phase charging vehicle to single-phase charging
In multi-EVC mode, the maximum charging current is limited to ensure overload protection
(maximum charging current/number of active charging stations). If, for example, 3 charging
stations are connected to a point of interconnection with a nominal current of 35 A, the charging
current is limited as follows:
• 1 active charging station: 32 A
• 2 active charging stations: 17.5 A per charging station
• 3 active charging stations: 11.67 A per charging station
Operating manual
Number of active charging stations
1
L1 L2
2
Charging length
L3 2-phase charging electric vehicle at SMA EV Charger 22
4 Product Overview
1
3
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