REC BMS Q16S Electronic Unit for 5-16 Cells

Features:

• robust and small design
• 5 – 16 cells
• single cell voltage measurement (0.1 – 5.0 V, resolution 1 mV)
• single cell - under/over voltage protection
• single cell internal resistance measurement
• SOC and SOH calculation
• over/under temperature protection (up to 4 temperature sensors)
• passive cell balancing 4.3 Ω
• 18-bit shunt current measurement (resolution 7.8 mA @ ± 200 A)
• galvanically isolated user defined multi-purpose digital output
• programmable relay (normally open)
• galvanically isolated RS-485  communication protocol
• CAN Bus communication
• error LED + buzzer indicator
• hibernate switch
• 1 s measuring interval
• balancing transistors defect check @ restart
• EEPROM memory data corruption check @ restart
• cell's voltage RMS voltage measurement
• self calibration @ restart
• BMS shutdown @ 0.98 x minimum cell disconnect threshold
• Ah counting

Data communications

RS485 protocol and messages are fully defined in manual - can be programmed using Hyperterminal or similar

RS485 message checksum is CRC-16   0x8005   x16 +x15 +x2 + 1

CAN Bus messages are fully defined in manual

PC Master Control Software

Available as an option