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3.3 Control

Version 1.1 by Admin on 2024/12/12 17:20


      1. General parameters

General parameters of BMS Main 3X are configured in the «Control → General» section:

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  • Initialization delay – a delay before processing functions after finishing device initialization (initialization includes current sensors calibration and battery modules search), millisecond.


      1. Battery modules

The BMS Main 3X allows up to 32 battery modules with BMS Main 3 onboard to be connected in parallel.

Flags for enabling battery modules are configured in the "Control → Modules → Enable (modules 1 to 8)" and "Control → Modules → Enable (modules 9 to 32)" section:

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The network addresses of the battery modules are configured in the "Control → Modules → Node IDs (modules 1 to 8)” and "Control → Modules → Node IDs (modules 9 to 32)”:

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Each module in a battery must have a unique address. You can change the address in the battery module settings in the “Connectivity → CAN” section of the BMS Main 3 settings.



      1. Calculation of battery parameters

The BMS Main 3X device calculates battery parameters based on user settings.

Calculation of the battery state of charge (SOC) is configured in the "Control → Calculation → Final SOC" section:

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The following battery SOC calculation methods are supported:

  • Minimal SOC – SOC of the modular battery is assumed to be the minimum SOC among the battery modules;
  • Average SOC – SOC of the modular battery is taken equal to the arithmetic average of the SOC of the battery modules;
  • Min-Max SOC – SOC of the modular battery is calculated based on the minimal and maximum SOC of the battery modules (recommended).

Calculation of the battery state of health (SOH) is configured in the "Control → Calculation → Final SOH" section. The following battery SOH calculation methods are supported:

  • Minimal SOH – SOH of the modular battery is assumed to be the minimum SOH among the battery modules;

Average SOH – SOH of the modular battery is taken equal to the arithmetic average of the SOH of the battery modules.