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Battery monitoring systems

Technical specification

Operation of the monitoring system BMSL is suitable for applications where is required monitoring of battery operation. The utilization of the battery monitoring system will bring to the user information about an upcoming battery failure, prevents back-up system failure due to the poor condition of the batteries and destruction of the entire battery set due to failure of one cell.

Battery Monitoring System for Lithium Batteries BMSL


FEATURES OF THE BMSL SYSTEM

  • Complex modular monitoring system of battery status
  • Processor control unit
  • Option: monitoring of up to 4 independent battery sets
  • Max. number of monitored cells for one set are together 250
  • Distributed measurement of cells
  • Individual voltage balancing of cell
  • Option: connect to an external graphic display
  • Fully programmable measuring process
  • Galvanic isolation of measuring
  • Simple connection of measuring modules
  • User friendly interface
  • Ability to view data in the monitoring software application for PC
  • Option: clamping to DIN rail and subsequent embedding into a 19 ” rack or possibility to be wall mounted

BMSL monitoring system monitors and signals in the real time states of accumulator batteries, for example deep battery discharge, eventually discharging of single cells of the battery set, cell voltage unbalance, excessive discharging or charging currents of the battery set, battery temperature variation from the stated value and other parameters. Overrun of every mentioned parameter can destroy of the battery set, so it is needed to have immediate information about battery status.

By means of a process called Equalization (or Balancing), battery monitoring system BMSL regulates the voltage of each cell. This process serves to calibrate the cell and results optimal capacity and improved lifespan. The whole system consists of the control unit (MP) and the appropriate number of measurement modules (MM) of the same structural design, current probes (CP), and related number of connecting conductors and conductors of voltage sensors.

The system can be powered directly from the battery. Therefore, it is not necessary to provide the power supply from back-up distribution mains, what enable to situate the battery-monitoring system directly into accumulators´ installation or storage room. Another option is to power the system by an external source.

Operating temperature range:

  • -25 °C to 55 °C

Protection:

  • IP20
  • If the location of the monitoring is in a room with open batteries, it is necessary to place the control unit and measurement modules into cabinets with IP54 and to use a CPxxxIP current probe.


Features of the battery monitoring system

Monitoring

  • Total voltage of each battery set
  • Voltage of a particular cell of battery set
  • Voltage balance on a particular cell of battery set
  • Check min./max. cell voltages
  • Max. charging currents of batteries
  • Max. discharging currents of batteries
  • Current balance of battery sets
  • Cell temperature
  • Battery ambient temperature
  • Battery ambient temperature
  • Option: configuring control of mutual parameters among battery sets
  • Option: monitoring of battery sets with a varying number of cells

Communication with a user:

  • Alarm report
    • visually (LED)
    • alarm relay dry contacts
  • Communication via serial interface RS485 – protocol MODBUS RTU
  • Communication via standard net protocols – protocols MODBUS TCP, SNMP, WEB interface

Control:

  • Locally by using display.
  • Locally / remotely via Ethernet interface – WEB interface or MODBUS TCP

Software:

  • Support of OS MS Windows XP, Windows 7 / 8 / 10

Aplications:

  • Stationary batteries
  • Batteries in the UPS and telecommunications power supplies, energetic industry
  • Gas industry, railways

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