Device function

It is possible to use and configure the inverter either as a system manager or as a subordinate device.

When using an inverter as a System Manager, ensure that the system size does not exceed 150 kVA and that a maximum of up to 5 additional devices (e.g., 4 inverters and 1 energy meter) can be integrated into the system.

You can set the device function using the commissioning wizard.

Inverter as System Manager

If you configure the inverter as System Manager, the inverter as a main device in conjunction with an energy meter takes over the control at the point of interconnection and can receive control signals. 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, it does not take over control. The subordinate inverter receives specifications from the System Manager (e.g. an SMA Data Manager) and implements them. Before a subordinate device can be recorded in a System Manager, you must commission all subordinate devices.