SUNSYNK Self-Managed (Open-Loop) Configuration

Batt type

Select the AGM V option.

Lithium ⁽¹⁾: For connecting a Lithium battery in a managed (closed-loop) configuration.

AGM V: Use battery voltage for all the settings in a self-managed (open-loop) configuration.

AGM %: Use battery SOC for all the settings in a self-managed (open-loop) configuration.

No batt: Option when no battery is connected to the system.

Activate

Select this check box.

Batt Capacity

Set to the number of Discover Lithium batteries x Ah capacity of each. For example, set to 300 Ah (3 x 100 Ah) for three AES RACKMOUNT 48-48-5120 batteries.

Charge Amps

For a single inverter-charger, set to the lesser of the inverter-charger’s maximum charge rate or the quantity of attached batteries multiplied by the battery’s maximum charge rating. For example, set the 8K-SG05LP1 inverter-charger to the lesser of the inverter-charger’s maximum charge rate of 190 A, or 285 A for three AES RACKMOUNT 48-48-5120 batteries that are each rated at a maximum charge rate of 95 A (3 x 95 A = 285 A). ⁽²⁾

For a three-phase system with three inverter-chargers, set to the lesser value between the master inverter-charger’s maximum charge rate and the quantity of attached batteries multiplied by the battery’s maximum charge rate divided by the number of inverter-chargers. For example, set the 8K-SG04LP3 inverter-charger to the lesser of the inverter-charger’s maximum charge rate of 190 A, or 126 A for four AES RACKMOUNT 48-48-5120 batteries that are each rated at a maximum charge rate of 95 A (4 x 95 A=380 A divided by three inverter-chargers).

Discharge Amps

For a single inverter-charger, set to the lesser of the inverter-charger’s maximum discharge rate or the quantity of attached batteries multiplied by the battery’s maximum discharge rating. For example, set the 8K-SG05LP1 inverter-charger to the lesser of the inverter-charger’s maximum discharge rate of 190 A, or 285 A for three AES RACKMOUNT 48-48-5120 batteries that are each rated at a maximum discharge rate of 95 A (3 x 95 A = 285 A).

For a three-phase system with three inverter-chargers, set to the lesser value between the master inverter-charger’s maximum discharge rate or the quantity of attached batteries multiplied by the battery’s maximum discharge rate divided by the number of inverter-chargers. For example, set the 8K-SG04LP3 inverter-charger to the lesser of the inverter-charger’s maximum discharge rate of 190 A, or 126 A for four AES RACKMOUNT 48-48-5120 batteries that are each rated at a maximum discharge rate of 95 A (4 x 95 A=380 A divided by three inverter-chargers).

TEMPCO

Set to 0 mv/C/Cell. ⁽³⁾

Amps

The field on the left-hand side defines the charge amps from the attached generator.

The field on the right-hand side defines the charge amps from the grid.

Set to the same number of amps as the maximum charge current. ⁽¹⁾

Gen Charge

Select this check box if charging the battery bank from an attached generator. ⁽²⁾

A Gen Input Breaker must be connected to the output of an AC generator for this work.

Gen Signal

Normally open relay that closes when the Gen Start signal state is active.

Gen Force

When the generator is connected, you can force the generator to start without meeting other conditions.

Signal ISLAND MODE

When this option is selected and the inverter-charger is connected to the grid, the ATS port voltage is 0.

When Signal ISLAND MODE is selected and the inverter-charger is not connected to the grid, the ATS port voltage outputs 230 Vac.

Using this feature along with a NO relay, you can disconnect or bond the neutral (N) and protective earth (PE) wires in an electrical circuit.

Charge

Select this check box if charging from the grid. ⁽³⁾

A Grid Input Breaker must be connected to input from the grid for this to work.

Grid Signal

This signal indicates when the grid should no longer charge the battery.

Float V

Absorption V

Equalization V

Set the suggested voltage values defined in the associated battery manual.

Discover Lithium batteries must not be equalized. Setting zero hours ensures the batteries will not be equalized.

Shut Down

Low Batt

Restart

48 V

50 V

52 V