wiki:01.battery_iq:01.btms:02.hardware:02.bm-sm
Table of Contents
BM-SM
BTMS String master
| Order code: | BM-SM-xx (xx-see manual) |
|---|---|
| Mounting: | On battery or rail, 3M double sided adhesive tape, DIN rail |
| Dimensions: | 60 × 80 × 30 mm |
Highlights & Features
- String DC voltage, string charge-discharge current, charge-discharge state and string SOC.
- Voltage, internal resistance, temperature, SOC and SOH of each battery (with BM-CS sensor).
- Two serial ports for optional sensors and touch display.
- Power supply (4W) directly from POE Ethernet.
- Sensor auto-addressing. Insulated sensor bus.
- Advanced measurement algorithm.
- Programmable (EN-61131-3) actions: disconnect string, turn ventilation ON, etc.
- Balancing function: Keep voltage balanced during the floating charge phase of battery pack, keeping the individual battery in the best state, extending backup time and life span of battery pack.
- Supports up to 80 cell sensors, 1000V system
Technical specification
| Power supply | Nominal | POE |
|---|---|---|
| Power loss | ≤ 2W | |
| Operating temperature | Standard | 0 .. 45 °C |
| Limit | -10 .. 55 °C | |
| Storage temperature | -40 .. 70 °C | |
| Working humidity | 5 .. 95 %RH, non-condensing | |
| Dimensions: | Width | 60 mm |
| Height | 80 mm | |
| Depth | 30 mm | |
| Voltage measurements | Range | 20 .. 800 VDC |
| Accuracy | ± 0.5 % | |
| Resolution | 0.01 VDC | |
| Current measurements | Range | -1000 .. 1000 A |
| Accuracy | ± 2 % | |
| Resolution | 0.01 ADC | |
LED indicator
| Normal operation | Green LED |
|---|---|
| Alarm | Red LED |
Wiring
wiki/01.battery_iq/01.btms/02.hardware/02.bm-sm.txt · Last modified: 2025/04/16 10:48 by maja.lovko