Setting Managed (Closed-loop) Configuration on the Selectronic Inverter-Charger

After selecting the Selectronic communication protocol for the LYNK II, complete the managed (closed-loop) configuration settings on the Selectronic inverter-charger. Ensure the Discover Lithium Batteries are networked with LYNK II and that the LYNK II is connected to the Selectronic CAN port.

Managed (Closed-loop) Configuration

Refer to the latest Discover Energy Systems documentation for battery values and the latest Selectronic documentation for menu navigation and details on the setup procedure.

All values and parameters assume an operating temperature of 25 °C (77 °F).

Set the Discover Lithium batteries to ON and set the inverter-charger to ON.
Install and then start the latest version of the SP LINK application.
From the File menu, select Site Information > New (Easy Start Guide).

File > Site Information > New (Easy Start Guide)

In the Easy Start Guide, click Site Configuration Wizard.
In the New Site Connection Details page, enter the site name and specify the inverter-charger.

In the Select Battery Configuration page, select the Standard Battery Configurations and myGrid kits option.

For the battery Model No, select either Discover AES Rackmount 48-48-5120-H or Discover HELIOS ESS 52-48-16000 and accept the defaults.
In the Source of Renewables page, define the solar panels of the system.
In the Select Unit Application page, define how to use the energy stored in the batteries.
In the AS/NZS 4777.2 Compliance page, identify the region of the installation.
In the Extra Options page, select other options used by the solar and energy storage system.
In the Summary of settings, review the configuration and click Finish.

Follow the wizard’s instructions to complete the setup.

Configuration Settings

By selecting either Discover AES Rackmount 48-48-5120-H or Discover HELIOS ESS 52-48-16000 from the SP-Link wizard, it populates the Configuration Settings with the default values.

Confirm the default values are suitable for your installation.

NOTICE

BATTERY DAMAGE

Do not use the maximum electrical specifications of the battery as listed in the battery manual. Trying to achieve maximum performance will cause the Selectronic inverter to shut down without notice.
The Discover Lithium battery will communicate battery information to optimize charging performance.

Failure to follow these instructions may result in equipment damage.

Click the Configuration Settings tab and review all the settings in the Inverter, Battery, and Charger sub tabs.

In the battery settings, confirm the Battery Capacity and Current Target Scale.

Property	AES RACKMOUNT 48-48-5120 / 48-48-5120-H	HELIOS ESS 52-48-16000
Current Target Scale	65%	48%
Battery Capacity	Number of batteries x 100 Ah	Number of batteries x 314 Ah

In the charger settings, confirm the Max Charge Current and Current at the various charge stages (Initial, Bulk, Absorption, and so on).

Property	AES RACKMOUNT 48-48-5120 / 48-48-5120-H	HELIOS ESS 52-48-16000
Max Charge Current	65%	48%

Review all the other settings.
Once the configuration is complete, from the File menu, click Configuration Settings > Configure SP Pro to send the project to all assigned SP PRO inverter-chargers.

NOTICE

NOTICE

EQUIPMENT DAMAGE

If a DC Solar Charge Controller is used with a SP PRO, there can be some conflicts when charging due to cable impedances. In some instances the displayed SOC on the SP PRO may not reach 100%. If the DC Solar Charge Controller is the main charging source, you may need to set the DC Solar Charge Controller 0.3 V greater than the SP PRO.
The SP PRO inverter may default the SOC to 85% if the DC power supply is suddenly interrupted (e.g. BMS protection). Either reset the SOC via the Service setting or charge the batteries all the way to float mode prior to discharge.
Set at least a 10% difference between the DC Shutdown 0% Load and Generator Start SOC.
Example:
- DC Shutdown 0% Load = 50.2V (20% SoC)
- SoC Start = 30% SoC

Failure to follow these instructions may result in equipment damage.