PRODUCT MANUAL OF LITHIUM IRON PHOSPHATE BATTERY FOR COMMUNICATION
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IV. System description
This product has a full-featured 8-16 series lithium-ion battery pack management
system, with protection and recovery of monomer over-voltage/under-voltage, total
voltage under-voltage/over-voltage, charge/discharge over-current, high
temperature, low temperature, and short circuit. Features. Realize accurate SOC
measurement during charging and discharging, and SOH health status statistics.
Achieve voltage balance during charging. Data communication with the host is
carried out through RS485 communication, parameter configuration and data
monitoring are carried out through the human-computer interaction of the upper
computer software, the communication with the host is carried out through 485 or
CAN communication, and the parameter configuration and data monitoring are
carried out through the human-computer interaction of the upper computer software.
(The baud rate of the host computer is 9600 or19200).
4.1 Working mode
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Charging mode: When the BMS detects that the charger is connected and
the external charging voltage is greater than the internal battery voltage by more
than 0.5V, it will turn on the charging MOSFET for charging. When the charging
current reaches the effective charging current, the charging mode is entered. In
charging mode, the charge and discharge MOSFETS are both closed.
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Discharge mode: When the BMS detects the load connection and the
discharge current reaches the effective discharge current, it enters the discharge
mode.
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Standby mode: When the above two modes are not satisfied, enter the
standby mode.
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Shutdown mode (default closed): Normal standby for 24 hours, battery triggers
under-voltage protection, execute button shutdown, BMS enters shutdown mode.
Wake-up conditions in shutdown mode: 1. Charge activation; 2. Press key to turn on
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4.2 LED indicator introduction
LED light sequence, 1 running light, 1 alarming light, 4 capacity indicators
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Capacity indication
