Technical specifications
BMS Main 2.1 is a modular BMS controller for 24-1200V batteries. It interacts with measuring modules, calculates the battery state, and protects the battery from damage.
BMS based on the Main 2.1 can control up to 23 measuring modules and manage a battery consisting of 414 cells.
1.1 Specifications
| Parameter | Value |
| Supply voltage, V | 9÷30 |
| Current consumption @12 V, mA (max) | 100 |
| Number of BMS Logic devices | 1 to 23 |
| Number of cells (maximum) | 414 |
| Number of programmable solid-state relays for contactors (55V, 3A) | 4 |
| Number of programmable discrete inputs (dry contact) | 4 |
| Number of programmable discrete outputs (+5V) | 4 |
| Current sensor type | Hall-Effect sensor, bidirectional, supply voltage 5 V (LEM series HASS, HTFS) |
| Current sensor signal measurement error, V (maximum) | 0.001 |
| Number of CAN interfaces | 1 |
| CAN bus speed, kbps | 125, 250 (by default), 500, 1000 |
| Number of RS-485 interfaces | 2 |
| RS-485 baud rate, bps | 600, 1200, 2400, 4800, 9600 (by default), 19200, 38400, 57600, 115200 |
| CAN output voltage, V | 5.0 ± 0.5 |
| CAN output current, mA (maximum) | 400 |
| Number of Ethernet interfaces | 1 |
| Ethernet speed, Mbps | 10/100 |
| Dimensions (length × width × height), mm | 120 × 120 × 32 |
| Weight, g | 100±5 |
| Operating conditions | |
| Operating temperature range, °С | -40÷75 |
| The degree of protection from external influences | IP00 |
1.2 Overall and mounting dimensions
