SMA eCharger - Circuitry Overview DI 5; Circuitry Overview DI 6; Connecting Signal Source to Digital Input DI 5-6

6 Electrical Connection
SMA Solar Technology AG
Operating manual EVC22-3AC-20-BE-en-10 51
6.7.3 Circuitry overview DI 5
SMA eCharger as System Manager
Fast-stop switch
Figure 14: Connect a switch for the fast stop to digital input DI5 of the charging station that is to be configured
as System Manager
6.7.4 Circuitry overview DI 6
System protection
Relay for the grid and PV
system protection
Figure 15: Connect a relay for the external grid and PV system protection device to digital input DI6 of one or
more charging stations in the system
6.7.5 Connecting Signal Source to Digital Input DI 5-6
Additionally required material (not included in the scope of delivery):
☐ 1 relay for the grid and PV system protection (break contact)
☐ 1 fast-stop switch (break contact)
Requirements:
☐ The signal source must be technically suitable for connection to the digital inputs (see
Section15, page101).