Features: TBMS.master

TBMS.master is the base system to protect and manage a 12 volt battery (four lithium cells)

It comes fully assembled and configured for a standard installation.  It just needs to be connected to the cells.

TBMS.master includes:

  • main unit in a 160 x 114 x 46 cm enclosure with:
    • battery wire harness (four cell connectors, a fuse for each cell connection, and a ground)
    • six relay outputs 
    • one connector for the remote indicator panel
    • one connector for a current measuring shunt
    • one connector for the computer or the TBMS.monitor option
  • remote indicator panel (10 meter cable)
  • USB cord to connect a PC
  • PC application TBMS.config to configure the BMS, monitor cell status and run diagnostics (Windows)

Features

  • protects & manages four lithium cells connected in series (12 volt battery)
  • for all lithium chemistry from 2 to 5 volt per cell
  • only 5 wires to connect to the battery cells and the BMS is operational
  • all connections to the battery are protected with a fuse
  • deported indicator panel with 5 led, a buzzer and buttons to silence the buzzer, reset the relay outputs and activate emergency protection
  • 6 isolated and protected relay outputs (2A)
  • three TBMS.slave can be connected in a daisy chain to manage and protect a battery up to 48 volt
  • RS485 / ModBus connection to configure the BMS, monitor the battery and run diagnostics from a computer (standard USB connection)
  • keeps cells voltage within a few millivolt at all time – activated by a user defined voltage difference between cells (with or without compensation for each cell’s internal resistance*)
  • simultaneously discharges the cell with the highest voltage and charges the cell with the lowest voltage (high efficiency energy transfer without any heat dissipation) 
  • 2 Amps bidirectional current
  • voltage of each cell (+/- 0.5 mV)
  • temperature of each cell (+/- 0.5 °C)
  • current* in or out of the battery (+/- 5 mA) 
  • battery state of charge*
  • battery state of health*
  • number of charge cycles* for the battery
  • Each trigger’s activation and deactivation is fully programmable:
    • based on cell voltage, cell temperature, battery SOC* or current*
    • whether a measure is high, low or there is a differential between cells
    • independent trigger ON and OFF values (hysteresis)
  • Each trigger can activate:
    • any of the 4 led on the indicator panel (on, off, blink)
    • any of the 6 programmable relays (with a configurable time delay)
    • an event that is recorded in TBMS.monitor (option)
 
  • 10 preset triggers:
    • warning level for voltage and temperature (high, low, cell differential)
    • alarm level for voltage and temperature (high, low)
  •  3 preset relay outputs:
    • disconnect charge
    • disconnect load
    • isolate battery 
  • activation of indicator panel led:
    • voltage trigger: led ON / temperature trigger: led BLINK
    • warning trigger: yellow led / alarm trigger: red led
    • different led for high, low and differential trigger types
  • Emergency push button activates the battery disconnection relay
  • green heart beat led for operation and balancing status
  • combination of 4 led for warning and alarm events (red / yellow)
  • 80dB buzzer with “silence” push button
  • push button to reset the relays
  • emergency push button to activate selected relays (configurable)
  • relay outputs are “dry” contacts (no voltage / no polarity)
  • each trigger  and the “emergency” button can activate zero, one or more relay outputs
  • configurable time delay between relays if more than one relay is activated by a trigger / “emergency”
  • each relay can handle 2 Amps continuous (7 Amps for 0.5 second) – protected by re-settable fuse
  • each relay can be set as Normally Open (NO) or Normally Closed (NC)
  • compatible with most equipment to control their operation (chargers, converters….)
  • comprehensive self-diagnostics performed at startup and every hour
  • cell voltage and temperature simulation mode for system wide testing
    • validate trigger settings
    • validate relay wiring
    • validate proper operation of devices controlled by the relay outputs

* requires the TBMS.shunt option