Figure 5-4 Sequential control state graph (Page 163)). The LB signal is evaluated in the low-
active state, but is not tested during the sensor function test.
Note
The light barrier signal is evaluated in the low-active state and must therefore be assigned 1 (=
not interrupted).
When not in operating status "S4: Z_ operation" (see Figure 5-4 Sequential control state graph
(Page 163)), the sensor signals are automatically assigned their resting signal value so that they
have no eect on the system status.
The travel range within which the controller reacts to the light barrier signal can be restricted by
parameter p1210. See Calibration and function parameters (Page 192).
You can nd more detailed information on the light barrier in section Overview (Page 166).
As of V1.14: SIDOOR ATD401W / ATD420W / ATD430W
The input "Input 1" can be parameterized as an input signal for a "simple" light barrier, without
sensor function test.
Signals
Signal Meaning
1 (voltage applied) Light barrier is not interrupted and the door closes when the DOOR
CLOSE command is present
0 (voltage not applied) Light barrier is interrupted and the door opens when the DOOR CLOSE
command is present*
* The response of SIDOOR ATD4xxW controllers also depends on the particular system mode. See the table
below.
Table 4-12 Response of SIDOOR ATD4xxW controllers to an interrupted light barrier
Mode Response
Learn run mode Learn run is canceled and the drive is deenergized.
Initial mode The system is stopped via a ramp down in conjunction with the active
"Close" drive order.
Normal mode Reverses the system in conjunction with the active "Close" drive or‐
der.
The system response to an obstruction detected while reversing can
be congured accordingly. The following drive order can be dened
with parameter p1211 (see section Calibration and function param‐
eters (Page 192)).
In positioning mode, the drive is stopped via a ramp down.
Special mode The system is stopped via a ramp down in conjunction with the active
"Close" drive order.
SIDOOR functions
4.4 Safety functions
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA 113
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