Becker C18 PLUS - Setting Limit Positions with Auto-install; Obstacle Detection

Setting the limit positions with Auto-install (for ZIP applications with heavy end
strip)
For proper execution of the auto-install function, the necessary torque in the lower limit position must be at least 1/3 of the rated
torque of the tubular drive used.
Example:
Tubular drive 12Nm, barrel diameter 85mm (r= 0.0425m, no part of the shading solution is on the barrel when uncoiled). 1/3 of
the rated torque equals 4Nm; this means a minimum weight requirement of approx. 9.6kg in the lower limit position (shading solu-
tion + end strip) for this barrel.
Calculation:
4Nm / 0.0425m = 94N
94N / 9.81ms
2
= 9.6kg
To set the limit positions with Auto-install, you need the "drive adapter for obstacle detec-
tion". If electrical power is removed from the drive during downward movement, the pro-
cess starts again from the beginning with the new downward movement.
Open as far as the permanent upper stop.
▻ The tubular drive switches off automatically.
Run the fabric downwards until the drive switches off automatically and reverses,
while keeping the travel button pressed. The drive now moves one revolution upwards
and then down to the lower limit position that has been found, where it switches off.
Keep pressing the travel button until the drive confirms once, indicating that the lower
limit position that has been found has been saved.
Now move to the upper limit position twice, so that this is also permanently stored.
Obstacle detection (for ZIP applications with heavy end strip)
Caution
Obstacle detection is only active in conjunction with the "drive adapter for obstacle detec-
tion".
In addition, please note that the drive must be pushed in to the shaft as far as the band of
the thrust ring.
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. Approx. 360° from the lower limit position, the drive interrupts
operation immediately following the first detection of an obstacle and makes no further attempt to continue.
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.
26-en