Features:
- Fully configurable for different types of batteries (voltage levels, capacity, protections levels and delays).
- Determination of a battery status:
- State of charge (SOC)
- Depth of discharge (DOD)
- State of health (SOH)
- Effective capacity
- Cell resistance
- Cycle counting
- Energy counting (received, consumed and dissipated by balancing resistors)
- Cell monitoring:
- Recording every cell voltage
- Temperature control
- Current monitoring (bidirectional Hall-Effect sensor with supply voltage 5 volts)
- Battery protections:
- Overcurrent
- Undervoltage
- Overvoltage
- High temperature
- Low temperature
- Heater control
- Cooler control
- etc.
- Cell balancing
- Continuous logging on an SD-card (full battery and BMS state)
- Interfaces:
- Ethernet (web interface to configure the system, Modbus TCP)
- Wi-Fi (optional – web interface to configure the system, sending log files to a remote FTP server)
- RS-485 (Modbus RTU)
- CAN (CANopen protocol to configure the system, interaction with an external equipment)
System controller configuring
The system can be configured via a Web interface (a Web browser is required) via Ethernet. Also, system configuration can be performed over a Wi-Fi network (in this case, the BMS Wi-Fi expansion module must be installed in the board).
The system can be configured over the CAN bus using the ElectricDeviceMonitor software. A USB-CAN adapter is required to connect a PC to the system controller.
| Parameter | Value |
| Supply voltage, V | 9÷30 |
| Current consumption @12 V, mA (max) | 100 |
| Relays count | 4 |
| Discrete inputs count | 4 |
| Discrete outputs count | 4 |
| Switching voltage of relays 3 and 4 (P6, P7 connectors), V (max) | 55 |
| Switching current of relays 3 and 4 (P6, P7 connectors), A (max) | 8 |
| Switching voltage of relays 1 and 2 (P8, P9 connectors), V (max) | 55 |
| Switching current of relays 1 and 2 (P8, P9 connectors), A (max) | 2 |
| Current sensor type | Hall-Effect sensor, bidirectional, supply voltage 5 V (LEM series HASS, HTFS) |
| CAN bus speed, kbps | 125, 250 (default), 500, 1000 |
| RS-485 baud rate, bps | 600, 1200, 2400, 4800, 9600 (default), 19200, 38400, 57600, 115200 |
| Ethernet speed, Mbps | 100 |
| Number of BMS Logic boards (max) | 20 |
| Dimensions (length × width × height), mm | 120 × 120 × 32.1 |
| Weight, g | 100±5 |
| Operating conditions | |
| Operating temperature range, °С | -40÷75 |
| The degree of protection from external influences | IP00 |
| BMS Main 2.x | BMS Main 1.x | |
| Relays count | 4* | 2 |
| Discrete inputs count | 4* | - |
| Discrete outputs count | 4* | 4 |
| CAN | CANopen, J1939, support of SMA’s inverters, support of forklifts by Hyster-Yale, Crown, Combilift, support of UPS | CANopen, J1939, support of SMA’s inverters |
| RS-485 | Modbus RTU | - |
| Ethernet | Web interface, Modbus TCP | - |
| Additional modules | BMS Wi-Fi (Web interface; sending log files to a remote FTP server) | - |
| Data logging | on an SD-card (full battery and BMS state) | - |
| The algorithm for calculating the parameters of the battery | Enhanced | Standard |
| Algorithms for controlling the charging process | + | - |
| Work with other BMS devices | BMS Display, BMS Indication, BMS Crown | - |
* The assignment of the relays, discrete inputs and outputs is configurable.