Smoke and fire protection

New: Tubular drive with absolute value encoder

Becker-Antriebe presents the latest generation of tubular drives with absolute value encoders for smoke and fire protection applications. This combines innovation and proven technology for a new level of safety and is ready for the structural and normative requirements of tomorrow.

The advantages at a glance:

Increase in effectiveness in the production process
Permanent functional monitoring of the system
Any positioning of the curtain
Integrated safety limit switches (PL d)
No manual adjustment at the motor head necessary.
No access to the drive necessary.

Technical features and benefits

Programování koncových poloh lze provádět prostřednictvím řízení, protože údaje o absolutní poloze lze odesílat prostřednictvím rozhraní RS485 integrovaného v pohonu.

The absolute value encoder is designed as a multiturn with a travel range of up to 40 revolutions and is also active in the event of danger, making it possible to stop in an exact intermediate position or move to the end positions after voltage recovery without reference travel. In addition, the function of the closing speed controller integrated in the drive can be monitored, as the speed of the winding shaft can be determined for the first time. Depending on the control unit, a speed that is calibrated during the initial commissioning can be evaluated during the monthly and/or annual inspection/maintenance or a defect/wear of the closing speed controller can be detected and reported at an early stage.

The state-of-the-art tubular drive with integrated locking device (working current brake) and the closing speed controller (centrifugal brake) is upgraded with an electronic position detection device in the form of an absolute value encoder. The drive race coupled to the winding shaft is connected to a spindle that meshes with two gear wheels. The gear wheels carry a positively connected magnet in the core. The angle of rotation of the magnets is determined by two underlying Hall sensors. The difference in the number of teeth results in unique positions up to a maximum possible travel of 40 revolutions until the gear wheels overlap. The electronics process the rotation angles into absolute position data and transmit this to the outside world via the RS485 interface using a dedicated protocol. The manufacturer of smoke and fire protection closures or smoke barriers is free to implement this protocol in his own control system.

Tubular drive with absolute value encoder for smoke and fire protection applications

Reliable protection in case of emergency

Our drives for smoke and fire protection offer technology at the highest level. Compliance with standards and classifications is as important as it is necessary - for a safe feeling.

In the event of a fire, a smoke curtain or fire protection closure must be rendered ineffective in a controlled manner and automatically reach the functional position. This self-closing feature, combined with the integrated control of the closing speed, makes fire protection solutions even safer. Whether smoke protection closure, fire protection closure or fire protection closure - the application is proven and certified.

Our self-closing drives, which bring the fire protection closure into the functional position without auxiliary power - also known as fail-safe tube motors - are available in various designs and sizes.
Fire protection drives - from Becker.

Our tubular drives with the right locking device for your application: