Sol-Ark Integration Guide

Program the Inverter
This article shows how to program the inverter in closed-loop communication mode.
Note: tech-support team strongly urges customers to use Fortress Power batteries in Closed-loop communication mode.
Yet, if certain circumstances require one to temporarily use the batteries in open-loop communication mode, please follow
the following link for open-loop settings: https://learn.fortresspower.com/external/manual/sol-ark-open-loop-settings?
p=dc8b9a9c1b3f410556835193e66f2257f1ef8978376f8433f4f6e98a4e83da65
1. To program the inverter using the Sol-Ark inverter screen, go to battery setup menu:
2. Program the 'Batt' tab first. Enter the settings as shown below and tap on 'OK' in the bottom of the menu afterwards:
Notes:
a) If closed loop communication is set up correctly, enabling 'BMS Lithium Batt 04' will adjust some values automatically.
In this tab, those would be 'Batt Capacity' and 'Tempco'.
b) If total charge/discharge current capacity of the batteries exceeds the inverter's capabilities, use the maximum current
settings of the inverter. For example, if you have four eFlexes and one Sol-Ark 12K inverter, based on the size of the
battery bank, 'Max A Charge' and 'Max A discharge' should be 240A each. But, Sol-Ark 12K can only carry 185A DC
going to or coming from the battery. So, in this case, both 'Max A Charge' and 'Max A Discharge' would be set to 185A.
c) If recovering a deeply discharged battery, adjust the above charge amps to 10A.
3. Next, program the 'Charge' tab in the 'Battery Setup' menu: