BM92D3021-1 – Obstruction Detection Module for AC Roller Shutter Motors

The BM92D3021-1 is a roller shutter control module designed for AC motors, featuring advanced obstruction detection functionality. During shutter operation, the module monitors real-time changes in motor voltage and current to determine if an obstacle is present. Upon detection, it automatically stops the motor to prevent damage or injury.

Additionally, the module includes an environment adaptation feature, which dynamically adjusts the obstacle detection threshold over time based on actual usage conditions for improved reliability.

Key Product Features:

• Operating voltage:
  • Non-isolated side: 10–20 V
  • Isolated side: 3–5.5 V DC

• Operating current:
  • Non-isolated side: < 20 mA @12 V
  • Isolated side: < 15 mA @5 V

• Supports AC motors

• Operating temperature: -20°C to 55°C

• Obstacle detection activation time: 2.5 seconds

• Response time to obstacles: 0.5 to 1.5 seconds (automatically adjusts based on obstruction speed)

• Adjustable obstruction sensitivity: Range 0–255

• UART interface (9600 bps) with photocoupler-isolated communication

• Compact size: 42 × 25 × 9 mm

• Net weight: 5 g

The BM92D3021-1 offers a reliable and intelligent safety solution for motorized roller shutters, making it ideal for both residential and commercial automation systems.