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16. Obstacle detection
The drive has a sensitive obstacle detection in the DOWN direction as well as a blockage
detection in the UP direction. The required torque is automatically readjusted at any time.
Slow changes in the system due to ageing, dirt, cold or heat are thus automatically taken
into account. If a travel command is blocked by an obstacle, the motor switches off and a
short return run takes place. The motor tries up to three times to reach the end position. If an
obstacle is still detected, the drive returns to the corresponding end position.
I
Because of the motor sensitive obstacle detection, the correct dimen-
sioning of the torque for the respective installation size is essential.
Note: the chart below serves only as indication to determine the motor size.
Whether the specified motor size is sufficient for the respective installation size and is sensitive
enough should be examined with the previously unknown factors like weight of the sun protec-
tion (total weight), friction, etc. for each installation type and size, as there might be important
variations.
Winding shaft diameter [mm]
Ø100
Ø85
Ø78
Ø63
0
2
4
6
8
10
12
14
16
18
20
22
24
6 Nm
10 Nm
End slat weight [kg]