Measuring modules

Measuring modules include BMS Logic 2.0, BMS Logic 12 and BMS Logic 18 boards.

BMS Logic modules measure voltage and temperature of the battery cells, and also perform a cell balancing upon a command from the BMS Main controller.

The first generation of the system

BMS Logic 2.0

Features:

  • Cell monitoring:
    • measuring cell voltage (4-12 cells)
    • measuring cell temperature (2 sensors)
  • Cell balancing (passive balancing with current 350 mA)

Additional information

Firmware — upon request

Software — upon request

Parameter

Value

Supply voltage, V

5.0±0.5

Current consumption @5 V, mA (max)

40

Balancing current, mA (max)

350

Cell voltage measurement error, V

0.003

Cell temperature measurement error, °С

2

RS-485 baud rate, bps

115200

Cell count

4÷12

Dimensions (length × width × height), mm

100 × 82 × 23

Weight, g

100±5

Operating conditions

Operating temperature range, °С

-40÷75

The degree of protection from external influences

IP00

The second generation of the system

BMS Logic 12

Features:

  • Cell monitoring:
    • measuring cell voltage (4-12 cells)
    • measuring cell temperature (temperature sensors for each cell)
  • Cell balancing (passive balancing with current up to 1000 mA*)
  • Low power mode

* Value of balancing current upon request.

Additional information

Firmware — upon request

Software — upon request

Parameter

Value

Supply voltage, V

5.0±0.5

Current consumption @5 V, mA (typical)

4

Power consumption @Cell stack, mW (max)

175

Balancing current, mA (max)

1000

Cell voltage measurement error, V

0.001

Cell temperature measurement error, °С

2

Cell stack voltage, V

10÷80

Cell count in stack

4÷12

Dimensions (length × width × height), mm

136 × 107 × 12

Weight, g

64±5

Operating conditions

Operating temperature range, °С

-40÷75

The degree of protection from external influences

IP00

The second generation of the system

BMS Logic 18

Features:

  • Cell monitoring:
    • measuring cell voltage (4-18 cells)
    • measuring cell temperature (temperature sensors for each cell)
  • Cell balancing (passive balancing with current up to 500 mA*)
  • Low power mode

Additional information

Firmware — upon request

Software — upon request

Parameter

Value

Supply voltage, V

5.0±0.5

Current consumption @5 V, mA (typical)

4

Power consumption @Cell stack, mW (max)

175

Balancing current, mA (max)

500

Cell voltage measurement error, V

0.001

Cell temperature measurement error, °С

2

Cell stack voltage, V

10÷80

Cell count in stack

4÷18

Dimensions (length × width × height), mm

212 × 121 × 12

Weight, g

106±5

Operating conditions

Operating temperature range, °С

-40÷75

The degree of protection from external influences

IP00

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