Setting Managed (Closed-Loop) Configuration on the NOARK Inverter-Charger

NOTE

In a managed (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, in the event of a communication error, the NOARK inverter-charger 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 NOARK 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.

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

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

Managed (Closed-loop) Configuration

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

Set the Discover Lithium batteries to ON and set the inverter-charger to ON.
Using the touch screen and keypad on the inverter, navigate to Main Screen > System Setup > Battery Setting.
Specify the battery settings according to the instructions in the tables that follow.
Touch the Up and Down arrows to scroll through screens. Touch the check mark button to save changes.
Exit and restart the inverter-charger.

NOTE
If using multiple inverter-chargers, configure NOARK inverter-chargers to operate in parallel before setting the battery operation parameters.

Main Screen > System Setup > Battery Setting

Battery Setting - Managed (Closed-Loop) Charge Settings

Touch the Up and Down arrows to scroll through screens. Touch the check mark button to save changes, X to cancel. Ignore data displayed in gray boxes.

Battery Settings (page 1)

Batt Mode

Lithium⁽¹⁾

Use Batt V

Use Batt %

No Battery

Select the Lithium option to use the battery BMS.

Activate Battery

Select this check box.

Battery Setting - Managed (Closed-Loop) Charge Settings

Touch the Up and Down arrows to scroll through screens. Touch the check mark button to save changes, X to cancel. Ignore data displayed in gray boxes.

Battery Settings (page 3)
Lithium Mode	Set this value to 00.
Shutdown	Adjust values to support the use case or keep the original self-managed (open-loop) values.
Low Batt
Restart

Main Screen > System Setup > Advanced Function

Advanced Function - Managed (Closed-Loop) Setting

Touch the Up and Down arrows to scroll through screens. Touch the check mark button to save changes, X to cancel. Ignore data displayed in gray boxes.

Advanced Function

BMS_Err_Stop

Select this check box to cause the inverter-charger to stop operating if there is a communication error.

If the BMS_Err_Stop check box is cleared, despite a communication error, the inverter-charger will continue to operate using the last communicated battery values which will eventually cause the batteries to invoke protection.