REC Q BATTERY MANAGEMENT SYSTEM 16S
Our REC BMS Q series with integrated CAN communication
protocol can manage up to 16 cells in series. Compatible with CAN supported ESS inverters/chargers for integrations in PV systems.
REC 2Q BMS:
- from 4 to 16 in-series connected cells per unit
- single cell voltage measurement (0.1–5.0 V, resolution 1 mV)
- single cell – under/over voltage protection
- SOC and SOH calculation
- up to 4 digital temperature sensors
- single temperature sensor and cable for current measurement already included with the BMS
- single cell internal resistance measurement
- over temperature protection
- reduced 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
- two galvanically isolated user defined multi-purpose digital outputs
- internal DC opto-relay output
- integrated 25 Ohm precharge with adjustable time delay
- integrated RTC
- control pilot for EVSE
- compatible with CAN supported ESS inverters/chargers for integrations in PV systems, like SMA Sunny Island, Victron Energy, Studer, GoodWe, etc.
- can be used as BMS Slave unit in high voltage systems or parallel connections in Master-Slave configuration
RS - 485 communication:
- two ports for the RS-485 communication – both may be used in a single connection (stand-alone version), or in case of Master-Slave configuration one is used as the input and later as output
- galvanically isolated RS-485 bus for observing battery pack’s data, changing BMS parameters, data logging, etc.
- dedicated REC Wi-Fi module or another RS-485 device may be used for the communication
Galvanically isolated CAN:
- eight ESS hybrid inverter protocols are pre-programmed in the BMS: Victron Energy, SMA Sunny Island, Solax, Solis, Growatt, Studer Innotec, Pylontech, Deye
- user can select the compatibility with desired inverter/charger by himself using dedicated Wi-Fi module
- three supported chargers are also pre-programmed in the default version of the REC 2Q BMS
- 100, 125, 250, 500, 1 MHz bit-rate selection
- message programming
- disable option
- custom CAN protocol can be implemented
Complete wiring of 2Q connectors:
- temperature sensor = 2 m (already included with the 2Q BMS)
- cable for current sensor = 2 m (already included with the 2Q BMS)
- cell wires, power supply and precharge connector wires = 1 m
- I/O and remote ON/OFF switch with wire labels = 1 m
- cable for current sensor shunt = 2 m
- single temperature sensor = 2 m
- RS-485 in plug; CAN connection with 5 pin circular connector = 0.5 m
Dimensions:
- length = 98.5 mm
- width with mounting pads = 190 mm
- width = 165 mm
- height = 38 mm
- mounting hole diameter = 4.5 mm
We suggest M4 screws for mounting.
User manual:
Firmware updates:
3D Step model: