tousek
/ EN_ST-61A_08 / 25. 03. 2020
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2. Traffic light control STA11
STA 11
Function
The traffic light control enables in conjunction with a suitable operator control board (eg ST 61A) the automation and control
of the gate entry and exit through a traffic light. At the terminals of the traffic light controller separate impulse generators can
be connected for „inside“ and „outside“. The behavior of the traffic light control is determined by the settings of the
connected operator control board. These relate to the function of the duration of the green phase and the clearance time, the
traffic light at the door position „closed“ (whether or continuous red) and the traffic light system logic. Depending on how the
„traffic light logic“ was adjusted, after completion of command processing and gate opening, either the side, which has given
the order, or both sides receive the green light. Vehicles can therefore only drive in one direction or both directions entering
the gate area. Furthermore, the traffic light controller has the capacity to store incoming transit needs and to work at the end
of the current cycle.
Functional sequence
Traffic light
(command giving
side)
Traffic light
(counter side)
1
Gate closed
Continuous red function
adjustable via operator control board
selectable
no continuous red
OFF
OFF
continuous red
RED
RED
2
opening command (INSIDE or OUTSIDE)
RED
RED
Prewarning OPEN is being started
(= red traffic light warning and possibly
signal light warning before opening the door), duration adjustable via gate auto-
mation control board
> Gate opens after the prewarning time.
3
Gate open (limit position reached)
traffic light logic, adjustable via operator control board
selectable
both sides Green
GREEN
GREEN
one side Green
GREEN
RED
4
Green phase is started
Duration is adjustable through operator control board
5
Clearance time is started (= time to exit the traffic light intermediary region)
Duration of adjustable drive control
RED
RED
> Gate closes after clearance time,
cycle starts again ( →
1
)
•
if during the closing procedure an impulse is generated, so the gate opens
immediately, and the green phase begins when the opening is completed.
•
If a further order from one side is given with traffic light logic „both sides Green“ during the green phase/clea-
rance time is given, then the green phase is restarted.
•
If a further order from the same side is given with traffic light logic „one side Green“ during the green phase/
clearance time, then a restart of the green phase for this side is effected.
•
If a further order from the counter side is given with traffic light logic „one side Green“during the green phase/
clearance time, then the gate remains after the green phase/clearance time open and the Green display
changes to the counter side.
When the stop button is triggered, the gate stops moving and only opens again with command by either side.
