SMA eCharger - Electrical Connection Procedure; Connecting the Utility Grid; Multi-EVC Operation; Connecting the AC Cable

6 Electrical Connection
SMA Solar Technology AG
Operating manual EVC22-3AC-20-BE-en-10 45
6.3 Electrical connection procedure
This section describes the procedure for the electrical connection of the product. It provides an
overview of the steps, which must be performed in the prescribed sequence.
Procedure See
1. Ensure that the requirements for the electrical connection
are fulfilled
Section6.1, page39
2. Connect the AC cable Section6.4.2, page45
3. Connecting the Network Cables Section6.5, page47
4. Connecting the Ripple Control Receiver Section6.6, page48
5. Connecting the multifunction relay Section6.8, page53
6. Connecting the digital inputs DI 5-6 Section6.7, page50
7. Connecting to the RS485 interface Section6.9, page54
8. Close the enclosure cover. Section6.10, page56
6.4 Connecting the Utility Grid
6.4.1 Multi-EVC operation
In multi-EVC operation mode, all charging stations must be connected to the utility grid on a rolling
basis (see Section4.2.3, page20). A system with 3 three-phase charging stations must be
connected to the utility grid on a rolling basis as follows:
• Three-phase charging station 1: L1, L2, L3
• Three-phase charging station 2: L2, L3, L1
• Three-phase charging station 3: L3, L1, L2
For example, a system with 2 three-phase charging stations and 1 single-phase charging station
can be connected as follows:
• Three-phase charging station 1: L1, L2, L3
• Three-phase charging station 2: L2, L3, L1
• Single-phase charging station 3: L3
6.4.2 Connecting the AC Cable
Requirement:
☐ The enclosure cover has been removed.
Procedure:
1. Disconnect the circuit breaker for all line conductors and secure against reconnection.