Obstruction Detection Open - Siemens SIDOOR AT40 System Manual

Controllers
6.2 Drive functions
6.2.22.2

Obstruction detection OPEN

Description of function
The door stops if it is obstructed in the "OPEN" direction when the DOOR OPEN command
is present. After approximately 2 s, the door automatically tries to reach the OPEN position
again. This action is repeated a maximum of 3 times. The door then remains stationary in
this position. If the DOOR OPEN command is canceled, the close command given, and the
DOOR OPEN command is then repeated, the door travels at normal speed to within about
2 cm of the stored position of the obstruction, and then up to the obstruction at reduced
speed. The door drive stops at the obstruction, and the opening action is repeated another
3 times. If the obstruction has been removed beforehand, the door travels at reduced speed
to approximately 2 cm past the stored position of the obstruction, and then continues to the
OPEN position at normal speed.
Exceptions: SIDOOR ATD400S / ATE250S
If the door is obstructed in the OPEN direction with a DOOR OPEN command present, the
door presses against the obstruction with the set opening force. If the obstruction remains
present for more than one second, then the SIDOOR ATD400S controller reduces the motor
current to the rated current of the motor, and the force is reduced correspondingly. This
function is repeated continuously, as long as the obstruction remains.
Once the obstruction has been cleared, the door travels at reduced speed to approximately
2 cm past the stored position of the obstruction, and then continues the rest of the way at
normal closing speed.
SIDOOR ATD4xxW
See Section SIDOOR ATD4xxW obstruction detection (Page 61).
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AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
System Manual, 06/2016, A2B00096162-AN