BMS Main 1.4

Battery system controller. First generation

Battery system controller. First generation

Battery system controllers include BMS Main 1.x and BMS Main 2.x boards.

The system controller polls the BMS Logic modules, which measure the voltage and temperature of the battery cells. Based on the data received, the controller determines the current state of the battery (SOC, SOH, DOD, etc.) and protects it from damage.

Additional information

Firmware — upon request

Software — upon request

Features:

  • Fully configurable for different types of batteries (voltage levels, capacity, protections levels and delays).
  • Determination of a battery status:
    • State of charge (SOC)
    • Depth of discharge (DOD)
    • State of health (SOH)
    • Effective capacity
    • Cell resistance
  • Cell monitoring:
    • Measuring every cell voltage
    • Temperature control
  • Current monitoring (bidirectional Hall-Effect sensor with supply voltage 5 volts)
  • Battery protections:
    • Overcurrent
    • Undervoltage
    • Overvoltage
    • High temperature
    • Low temperature
    • Heater control
    • Cooler control
  • Cell balancing
  • Interfaces:
    • CAN (CANopen protocol to configure the system, interaction with an external equipment)

System controller configuring

The system can be configured via CAN bus using the ElectricDeviceMonitor software. A USB-CAN adapter is required to connect a PC to the controller.



Parameter

Value

Supply voltage, V

9÷30

Current consumption @12 V, mA (max)

80

Relays count

2

Discrete outputs count

4

Switching voltage of relays, V (max)

55

Switching current of relays, A (max)

8

Current sensor type

Hall-Effect sensor,

bidirectional,

supply voltage 5 V

(LEM series HASS, HTFS)

CAN bus speed, kbps

125, 250 (default), 500

Number of BMS Logic boards (max)

20

Dimensions (length × width × height), mm

90 × 70 × 32.1

Weight, g

80±5

Operating conditions

Operating temperature range, °С

-40÷75

The degree of protection from external influences

IP00

BMS Main 2.x

BMS Main 1.x

Relays count

4*

2

Discrete inputs count

4*

-

Discrete outputs count

4*

4

CAN

CANopen, J1939,

support of SMA’s inverters, support of forklifts by Hyster-Yale, Crown, Combilift,

support of UPS

CANopen, J1939, support of SMA’s inverters

RS-485

Modbus RTU

-

Ethernet

Web interface, Modbus TCP

-

Additional modules

BMS Wi-Fi (Web interface; sending log files to a remote FTP server)

-

Data logging

on an SD-card (full battery and BMS state)

-

The algorithm for calculating the parameters of the battery

Enhanced

Standard

Algorithms for controlling the charging process

+

-

Work with other BMS devices

BMS Display,

BMS Indication,

BMS Crown

-

* The assignment of the relays, discrete inputs and outputs is configurable.

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