Installation Manual

Backup Power with Smart Energy Management - System Configurations
15
Additional Capacity and Power
For sites where additional capacity and power are needed (for example, to enable more backed-up loads to be powered
simultaneously), two StorEdge inverters and two batteries may be installed
2
. Each battery connects through a separate StorEdge
Inverter, and each inverter manages the battery and the PV connected to it. Backed-up loads are connected to each inverter
through separate load panels and auto-transformers The inverter connected to the meter operates as the system manager.
An RS485 Expansion Kit (available from SolarEdge) is installed in each of the inverters.
Figure 11: Backup Power with Smart Energy Management - Additional capacity and power
► To configure RS485 Communication:
1 Install an RS485 Expansion Kit in each inverter.
2 Connect inverter 1 RS485 Expansion port to inverter 2 RS485 Expansion port using an RS485 twisted pair cable. Make sure to
terminate both sides.
3 Configure inverter 2 RS485 Expansion port: Select Communication  RS485-E Conf  Enable.
4 Configure inverter 1 RS485 Expansion port:
 Select Communication  RS485-E Conf  Enable. Press Enter to continue.
 Select Protocol  Master
 Select Slave Detect on inverter 1. Verify that the inverter reports the correct number of slaves.
2
Additional capacity and power with one inverter will be supported in H2 2016 and will require new battery and inverter hardware.