Controller
6.2 Drive functions
ATE500E
System Manual, 09/2017, A5E33917696-AD
31
6.2.10.3
Obstruction detection process
Obstruction detection is based on two direction-independent processes: "force obstruction
detection" and "stop obstruction detection".
The following definitions are based on the speeds and are thus independent of the direction.
Both obstruction detection systems assume that the system is actively being moved (drive
order).
●
Force obstruction detection
The door was moved for at least 0.5 s, the current speed is >90 mm/s and drops by more
than 90 mm/s (speed drop) in comparison to the maximum speed reached during the
current movement.
If the system then moves at the upper force limit, a force obstruction is detected in the
current drive direction.
●
Stop obstruction detection
If the current speed is less than 10 mm/s for longer than 0.3 s in the closing direction or
0.5 s in the opening direction, a stop obstruction is detected in the current drive direction.
Note
Behavior according to the door mode
Obstruction detection is only active in Normal mode and in the states open, close and
reverse.
6.2.11
Belt break monitoring
Description of function
The function detects a torn belt. The belt break monitoring function is active in normal mode,
initial mode and during the learn run.
A torn belt is detected when the door movement exceeds a defined distance* (in the opening
or closing direction).
* The distance is defined as follows:
Mode
Distance
Normal mode
Learnt door width + 50 cm
Initial mode
Learnt door width + 20 cm
Learn run
Max. door width (5 m) +20 cm
