Device function of Sunny Boy Smart Energy

In systems with multiple inverters, you have the option of using and configuring the Sunny Boy Smart Energy either as a System Manager or as a subordinate device.

When using the Sunny Boy Smart Energy, you can use up to 6 devices (e.g. 1 Sunny Boy Smart Energy as System Manager, 2 Sunny Boy Smart Energy as subordinate devices, 2 PV inverters and 1 energy meter) in one system. Note that there may be a maximum of 3 inverters with connected batteries in the system.

Only 1 Sunny Boy Smart Energy can be used in systems with Sunny Home Manager. The Sunny Boy Smart Energy must be configured as subordinate inverter.

You can configure the device function using the commissioning wizard in the SMA 360° app or on the System Manager user interface.

Inverter as System Manager

If you configure the inverter as System Manager, the inverter as a superordinate device in conjunction with an energy meter takes over the control at the point of interconnection. The inverter can control other subordinate devices, takes over the monitoring of the system and the communication to the Sunny Portal powered by ennexOS.

Subordinate device

If you configure the inverter as a subordinate device, there is no independent closed-loop control or open-loop control at the point of interconnection. The subordinate inverter receives specifications from a superordinate device (e.g. inverter as System Manager or Sunny Home Manager) and implements them. It should be noted that the Sunny Home Manager cannot be used for reactive power control of the subordinate inverters.