SMA Sunny Island Integration Guide

Rev1.0_8.05.2021
How To Set Up Fortress Power Lithium Batteries Using SMA 6048-US
505 Keystone Rd, Southampton, PA 18966 . [phone]. [e-mail] . Fortresspower.com
Introduction
This integration guide will help set up the charge/discharge parameters of Fortress Power batteries as
they relate to Sol-ark inverters, as well as closed-loop communication
Datasheets / Manuals: https://www.fortresspower.com/resources/
Email: [e-mail]
Discord Support: https://discord.gg/kxX6QMjKFw
Phone: [phone] x 2
Hours: 8:30AM - 6:30PM EST
Warranty Submittal: https://www.fortresspower.com/product-warranty/
Open Loop Setup between Fortress Batteries and SMA
For open loop settings, select VRLA for battery type.
Closed-Loop Setup between Fortress Batteries and SMA
All Fortress Power batteries work in open-loop communication mode—that is, with voltage detection.
However, functions in the SMA must be fully defined for complete open loop operation. Please assign
correct values in the complete list on the Sunny Island User Manual’s parameters for complete
commissioning
Closed-loop does not exempt the installer from programming the inverter manually. Open loop settings
should be programmed before setting up closed loop communication. The inverter will revert to open
loop settings if closed loop communication drops.
1. Connect communication cables and CANbus terminator between the batteries
a. RX/TX ports are universal
b. The “master” battery is the one powered up first – so after plugging in the
communication cables, turn the battery which will communicate to the SMA first.
c. After the light show completes, push button the next eFlex battery on. Proceeding down
the chain to the last eFlex with the CANbus terminator to complete commissioning.
Exhibit A
2. Make sure the Breaker for the SMA is in the “ON” (Make) position.
3. Power on the eFlex/eVault Max in correct commissioning sequence.
4. Hold [Enter] Button on SMA to Initialize Inverter.
5. Verify on the SMA that SOC is viewable.
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