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 Sunny Boy Smart Energy in the system.

To configure the device function, use the commissioning wizard in the SMA 360° app.

Inverter as System Manager

If you configure the inverter as System Manager, the inverter in conjunction with an energy meter takes over the control at the point of interconnection. As a System Manager, the inverter acts as a main device and is able to control (open-loop or closed-loop) subordinate devices. The System Manager also monitors the system and communicates with 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 main device (e.g. inverter as System Manager) and implements them.