1. BMS3610 Introduction
LiBat™ BMS3610 is a high cell-count battery management system master engineered for demanding industrial battery systems. This fully digital device is a ready-to-use solution for 5S-36S master battery management systems, driving BMS1802 and BMS1202 slave modules over galvanically isolated CAN Bus, RS485 and I/O. It adapts to high voltage, high power and high energy applications through external electrical components such as contactors and current sensors, and can be expanded up to 288 cells with slave module connection. Once configured with the correct system parameters, the BMS3610 operates seamlessly without the need for ongoing user interaction.
Key Features:
- Built in 5S - 36S cell measurement with 0.1mV resolution
- Up to 600mA adjustable passive balancing current
- Wide input supply range (12V - 80V), 12V or battery powered
- Isolated 1 x CANBus 2.0b, 1 x RS232, 1 x RS485 communication
- Cloud connection and OTA firmware updates
- Advanced I/O: 3 logic inputs, 2 logic outputs, 4 automotive high-side switches, 1 relay output
- Dual channel external current measurement
- Standalone, Master and Multi-Master operating modes
- Up to 16 slave modules (BMS1802 / BMS1202) via isolated daisy-chain
- Expandable up to 288 cells total with slave module connection
- Deep sleep and low power consumption modes
Table.1.1: BMS3610 Technical Specifications
| PARAMETER | SPECIFICATIONS |
|---|---|
| Power Source | Self or External Power. (12 - 80 Vdc) |
| Wake Up Trigger | User Button |
| LEDs | Power, Run/Error Status |
| Relays | 1x Relay Output |
| Inputs | 3x Logic Inputs |
| Outputs | 2x Logic Outputs, 4x Automotive High-Side Switches |
| Precharge | Configurable Software Timer |
| DFU Mode | Embedded bootloader for firmware upgrades. |
| Digital Interface-1 | 1x Half Duplex RS485 |
| Digital Interface-2 | 1x RS232 |
| Digital Interface-3 | 1x CANBus 2.0b |
| Communication Protocols | LiBat COM, JSON |
| Communication Protocol | Modbus RTU |
| Current Sensor | Compatible with 5V external current sensors (dual channel) |
| Operating Modes | Standalone, Master, Multi-Master |
| Slave Connections | Up to 16 slaves (BMS1802 / BMS1202) via isolated daisy-chain |
| Number of cells | Up to 36 Cells (5S - 36S) |
| Cell Type | Any battery cell in voltage range |
| Minimum cell voltage | 250 mV |
| Maximum cell voltage | 4500 mV |
| Accuracy of Cell Voltage Measurement | ±1.6mV typical, < ±8.3mV max. |
| Balance Method | Passive Balancing |
| Balance Current | Up to 600mA @ 4.2Vdc cell voltage |
| Operating Temperature | -20 °C to +70 °C (-4° F to +158° F) |
| Relative Humidity | 5% to 95% (non-condensing) |
| Expandability | Up to 288 cells total with slave modules |