Siemens SIDOOR ATD4 W Series System Manual page 93

Parameter assignment
• Function configuration
Stop and force obstruction detection can be deactivated for each drive direction in parameter
p3850 (bits 0 and 1, and 4 and 5 respectively). In addition, counting of the obstructions can
be suppressed in accordance with the direction of travel (Bit 2 or 5).
• Lead times
After a drive order is changed or the direction of motion is reversed, the obstruction detection
is activated after a variable ON-delay time (p3852 and p3869).
• Range restriction
The obstruction detection is suppressed in a variable area before the respective end stop
is reached (p3856 or p3873).
It is also suppressed after leaving the relevant end stop (p3857 and p3874).
Force obstruction detection, in particular, is suppressed before the creep distance (p3858
and p3875). It is suppressed in a variable range after the last obstruction (p3859 and p3876).
If blocking of the door takes place in a tolerance range of 10 mm before the closed position,
this blocking is detected as a door end stop and the door controller switches to the "Closed"
state.
The tolerance range of 10 mm for the detection of the closed position is permanently stored
in the firmware of the door controller and independently of the range defined with the
parameters p3856 or p3873 for the obstruction detection.
To detect obstacles smaller than 10 mm before the closed position and trigger a blocking
reaction, e.g. reverse, the corresponding constructive measures have to be carried out at the
door. These can, for example, be rubber lips at the door edge or door pockets before the
closed position.
The tolerance range of 10 mm is necessary to consider mechanical changes of the door
mechanism. Changes can, for example, occur at the following components through
temperature or abrasion:
– Rubber buffer at the door edges
– Expansion und tension of the drive belt
– Contamination of the rail
– Modifications to the door frame
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA
SIDOOR functions
4.3 Extended functions
91