Setting Up Sol-Ark Closed-Loop Configuration

NOTICE

OVERCHARGE / OVERDISCHARGE HAZARD

In a closed-loop configuration with the BMS Lithium Batt function enabled, the BMS_Err_Stop parameter must be enabled. If the BMS_Err_Stop parameter function is not enabled, the Sol-Ark inverter will continue to operate based on the last communicated battery values. Depending on the mode of operation at the time of communication fault and given enough time, the Sol-Ark inverter-charger will eventually put the attached battery into an overcharged or fully discharged state. When that occurs, either situation will trigger the Discover Lithium Battery BMS to self-protect and disconnect the battery from the system.

Failure to follow these instructions may result in equipment damage.

NOTE
It is recommended that the Sol-Ark inverter be programmed with the appropriate open-loop settings before enabling closed-loop communication.

Complete the Closed-loop configuration after establishing both the Sol-Ark open-loop configuration and the LYNK II Sol-Ark communication protocol. Ensure the Discover Lithium Batteries are networked with LYNK II and that the LYNK II is connected to the Sol-Ark network port.

If necessary, first configure Sol-Ark inverters to operate in parallel by establishing the inverter master/slave relationships and phase designations before setting the parameters for battery operation. Configuring the master inverter will cascade parameters and settings to the other inverters.

Closed-loop Configuration Procedure

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

Set the Discover Lithium batteries to ON and set the inverter to ON.
Using the touch screen and keypad on the inverter, navigate from the SYSTEM SETUP menu to the BATT SETUP menu screen.
Enable and disable parameters according to the instructions in the tables below.
Set each adjustable value according to the instructions in the tables below
Touch the OK button to save all onscreen values - Ignore data displayed in GREY boxes.

NOTE

Touch the Sol-Ark screen to:

Navigate the Sol-Ark onscreen menus.
Enable parameters.
Activate the adjustment of values.
Save all onscreen settings.

Values are adjusted using the keypad.

NOTE

Enable parameters with a CHECKMARK, and disable parameters by clearing the check box. Touch a WHITE box onscreen to activate the adjustment of that value. Selecting parameters either enabled or disabled alters which values are available to be adjusted.

A WHITE BOX indicates values that can be adjusted.
A GREY BOX indicates values that cannot be adjusted, and any displayed value should be ignored.

NOTE
If necessary, configure Sol-Ark inverters to operate in parallel before setting the parameters for battery operation.