Sectional Overhead Door Drives - Ranger 91RDU
Digitally controlled variable speed drive for Sectional Doors
- Direct setting of actual door speed
- Limit switch setting from ground level
- Automatic adjustment for changes in floor level or cable stretch
- Programmable door maintenance indicator with three response modes
- 7 segment LED display of door status
- Self-diagnostic
- Directly compatible with Fraba optical safety edge
- Automatic timed closing
- Forewarning of door movement
All Ranger Drives have plug in connections for limits and motor supply enabling a range of control panels to be connected.
For more information on the range of control systems for industrial doors please see the controls section.


