Becker E12, Assembly And Operating Instructions Manual, Page: 19 / 28

Obstacle detection
Caution
Use of the drive’s obstacle detection system as personal protection is not permitted. It has
been designed exclusively to protect the sun protection system from being damaged.
If the drive is correctly installed, it switches off when it detects obstructions or fabric faults and tries to run past the obstruction a
second time. If this fails, the drive switches off after the third attempt. The total number of attempts to complete a travel that has
been started to the respective limit position is limited to 10 (distributed over several obstruction locations).
If reversing is interrupted, a further drive command is only possible in the direction of reversing. Move the fabric without interrup-
tion until the tubular drive stops automatically. It is now possible to travel in both directions again.
Activating/deactivating the additional fabric untensioning function with the
programming unit
The "to retracted stop" limit position must be set for the fabric untensioning function.
On delivery, the fabric tensioning function is deactivated on tubular drives with a diameter of 35 mm, and is activated on tubular
drives with diameters of 45 mm and 58 mm.
To activate/deactivate it, move to the Retract limit position.
Press the programming button for approx. 5 seconds.
▻ Confirmation is provided by a shift.
► The fabric untensioning function is now activated/deactivated.
Activating/deactivating the additional fabric tensioning function with the
programming unit
On delivery, the fabric tensioning function is deactivated.
Activating the fabric tensioning function
To activate it, move to the Extend limit position.
Press the programming button for approx. 5 seconds.
▻ Confirmation is provided by a shift.
Now move to the position where the fabric has the desired tension.
Press the programming button for approx. 5 seconds.
▻ Confirmation is provided by a shift.
► The fabric tensioning function is now active.
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