Device function

In your PV system, you have the option of using and configuring the SMA eCharger as System Manager, as subordinate device under another System Manager (e.g. STPH or SMA Data Manager M) or in combination with a Sunny Home Manager 2.0.

When using the charging station as a System Manager, ensure that a maximum of up to 5 additional devices can be integrated into the system.

You can set the device function using the commissioning wizard or in the SMA 360° app.

Charging station as System Manager

If you configure the charging station as System Manager (from firmware version >= 2.7.X.R), it takes over the control at the point of interconnection and can receive control signals as a main device in conjunction with an energy meter. The charging station can control other subordinate devices, takes over the monitoring of the system and the communication to the Sunny Portal powered by ennexOS.

In order to be able to use the full range of functions of the charging station, an energy meter as well as a PV inverter are required.

Subordinate charging station

If you configure the charging station as a subordinate device, it does not take over independent closed-loop control and open-loop control. The subordinate charging station receives specifications from the System Manager (e.g. an STPH or SMA Data Manager from firmware version >=2.7.X.R) and implements them.

Subordinate charging station (Sunny Home Manager)

When the charging station is configured in combination with Sunny Home Manager 2.0, the Sunny Home Manager 2.0 takes over control of the system.