Product Description
Sematic BL - 1 Controller SRS
The Wittur Sematic BL-1 Controller SRS is a genuine DC-PWM control card designed for precise, reliable control of lift door operators. Built to Wittur's exacting standards, this control unit ensures smooth door movement, accurate positioning and dependable day-to-day performance.
Featuring encoder feedback for precise positioning control, integrated EMC protection, and dual RJ45 ports for straightforward communication and diagnostics, the BL-1 Controller SRS is a robust solution for maintaining the safe and efficient operation of your lift door system.
Key Features:
✔ DC-PWM control for accurate, responsive door motor operation
✔ Encoder input (RJ45 A/B) for precise positioning feedback
✔ Integrated EMC protection for stable performance
✔ Battery backup terminals (+BAT / -BAT) to support operation during power interruption
✔ Motor output rated for 110V/230V operation
✔ Onboard fuse protection (250V, 4A) for added circuit safety
✔ ON/OFF switch for easy servicing and testing
✔ Compact, heat-sinked housing for reliable thermal performance
Applications:
Suitable for maintenance, repair and replacement of Wittur Sematic door operator systems, ensuring continued compliance and performance for lift door control.




