v1.6.0

BMS_Mini_v1.6.0.srec 

Features

• new parameter for setting the condition for starting balancing: automatically (regardless of the command) or on the balancing request (see the "Control - Cell balancing" section)
• new option to start balancing if the cell voltage exceeds the "Voltage for forced balancing" value (see the "Control - Cell balancing" section)
• new Max-Min algorithm for calculating the final battery SOC in the "Control - SOC estimation" section
• new flags in the "Protections - Undervoltage" and "Protections - Overvoltage" sections which allow using the calculated open circuit cell voltage instead of the actual voltage to detect the "Undervoltage" and "Overvoltage" errors, respectively
• ability to check the "Ready to charge" and "Ready to discharge" signals to control the charging and discharging contactors (see the "Control - Charge" and "Control - Discharge" sections)
• improved control of the precharging contactor, which can precharge capacitive load using multiple attempts and detect high power dissipated in the precharge resistor (see the "Control - Precharge" section)
• ability to select errors that the device saves in the errors journal (see the "Service - Errors journal" section)
• new parameter that limits the number of battery cycles; when the number of battery cycles exceeds the limit, the BMS cannot close the charging and discharging contactors (see the "Service" section, log in under the service account)

Improvements

• placing the device input signals to the "Battery" section and adding raw discrete inputs to the "Signals" section

Fixes

• using the calculated open circuit voltage to set/clear the "Ready to charge" and "Ready to discharge" signals
• resolving the problem of incorrect software signal addresses in the Modbus holding register table

v1.5.1

BMS_Mini_v1.5.1.srec 

Fixes

• resolving the problem of saving device parameters

v1.5.0

BMS_Mini_v1.5.0.srec 

Features

• new guest access to the device (password "guest")
• new algorithms in the Charging/Discharging controller that allow to control the Charging/Discharging contactor independently from the Charging and Discharging signals (see the "Control - Charge/Discharge" section). The new "Independent" algorithms are preferred in the battery systems with one contactor
• selection of errors that cause reset of contactor control signals (see the "Control - Main contactor", "Control - Charge", "Control - Discharge", "Control - Charge/Discharge", "Control - Discharge (AUX)", "Control - Heater", "Control - Cooler", "Protections - General error", "Control - Charging status", "Control - Discharging status" sections)
• new "Current limit error" which is set if the battery current exceeds the charging or discharging current limits (see the "Protections - Charge current limit" and "Protections - Discharge current limit" sections)
• clearing the Discharging (AUX) signal if the cell voltage is too low (see the "Control - Discharge (AUX)" section)
• new assignments "Interlock" "Fuse 1", "Fuse 2", "Fuse 3", "Circuit breaker status", "Balancing request", "Close Main contactor", "Close External 1" for the discrete inputs (see the "Signals - Input discrete signals - Assignments" section)
• new assignments "Low SOC", "High charging current", "Charging current present", "Discharging current present", "Power down ACK", "Ready to charge", "Ready to discharge", "General error", "External 1" for the discrete outputs and MOSFETs (see the "Signals - Output discrete signals - Assignments" and "Signals - MOSFETs - Assignments" sections). The "External 1" output is directly controlled by the "Close External 1" command
• new "Need acknowledge" warning signal that is set when a new record is created in the errors journal. The signal can be cleared in the "Service - Errors journal" section
• support for the ASTOM load bank
• support for the Bender iso165C device
• support for the BMS IMD device
• support for the BMS LANmodule adapter for connecting to a local network, which allows to configure the device using the ElectricDeviceMonitor software and monitor the battery system via the Modbus TCP protocol

Improvements

• new balancing strategy that attempts to keep the temperature of the device below a set value by discharging cells with higher voltages first than others (see the "Control - Cell balancing" section)
• rearrangements in the settings sections, which are made to simplify the setup process