805-0090 HELIOS ESS Installation and Operation Manual
805-0090 HELIOS ESS Installation and Operation Manual
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Deye Inverter Configuration (Closed Loop Without LYNK II)

The HELIOS ESS supports closed-loop communication with the Deye inverters listed in the Closed-Loop Communication with Inverters table in the HELIOS ESS Closed-Loop Communication topic.

To enable communication between the inverter and batteries:

  1. Connect a CAT6 or higher straight cable from the HELIOS ESS COM2 port to the
    CAN port of the Deye inverter-charger.

Deye-connect.png

Deye CAN Connection

  1. Configure the Inverter-Charger

    1. Using the touch screen and keypad on the inverter-charger, navigate to Main
      Screen > System Setup > Battery Setting.

    2. Specify the settings according to the instructions in the tables that follow to stop
      power conversion when a closed-loop communication error occurs.

    3. Touch the Up and Down arrows to scroll through the screens. Touch the checkmark
      button to save changes.

  2. Exit and restart the inverter-charger.

NOTE

  • If there is a break in communication between the HELIOS ESS battery and inverter-charger for more than ten seconds, the inverter-charger will safely stop operation, so long as the BMS Lithium Batt and the BMS_Err_Stop parameters are both enabled on the Deye inverter-charger. The inverter-charger will display an F58 BMS Communication Fault if communication is lost. The Deye inverter-charger will check every five minutes and resume closed-loop operation if communication is re-established.

  • If communication cannot be reestablished and you need to resume operation, you may have to convert the Deye inverter to an open-loop configuration manually. For instructions on configuring open loop, refer to Deye Inverter Configuration (Open Loop).

NOTE

Depending on your system and particular use case, there may be other settings that require configuration. Refer to the inverter manual for information on these settings.

Main Screen > System Setup > Battery Setting

Screen_BatterySetting1b.png

Battery Setting - Deye Closed-loop Charge Settings

Battery Setting (page 1)

Batt Mode

Select the Lithium option to use the battery BMS.

Activate Battery

Select this check box.
Screen_BatterySetting3.png

Battery Setting - Deye Closed-Loop Charge Settings

Battery Setting (page 3)

Lithium Mode

Set this value to 00 (Pylon).

Shutdown

Adjust values to support the use case or keep the original values.

Low Batt

Restart

Main Screen > System Setup > Advanced Function

Screen_AdvancedFunctionb.png

Advanced Function - Deye Closed-Loop Setting

Advanced Function

BMS_Err_Stop

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