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8.2 - STEP MODE
The basic configuration of an automatic bollard with step operation consists of the following:
• One or more automatic bollards
equipped with integrated
flashing light
and
acoustic warning signal
(define
flashing light and acoustic warning signal depending on the system, if necessary).
•
A control unit
with radio receiver and remote control (defined the respective number).
•
A safety inductive detector
with 1 or 2 induction loops.
The automatic bollards are in the up position in normal operation to block passage. The integrated flashing light keep
flashes constantly.
The bollards lower if a corresponding command is given via a remote control to allow passage. An acoustic warning
sounds until bollards are fully lowered (ground level).
If the bollards are fully lowered (the position of each bollard is monitored by a sensor), the control unit switches the
traffic light and the acoustic warning signal falls silent. The passage is clear.
The command to block the passage can be given once a vehicle has passed through. The integrated flashing lights
and the acoustic warning signals are activated immediately after the command. The bollards start rising after approx.
1 second.
If the passing vehicle is still located above the bollards or within close proximity to them, the induction loops are active
and prevent the bollards from rising.
The bollards stop and return to the lowered position (reverse command) if another vehicle is detected over the
induction loops during rising.
If a pedestrian steps on a bollard during the rising phase, the safety pressure switch detects the presence of a weight
and immediately interrupts the rising phase and makes the bollards lower to down position (inversion control by
safety pressure switch).
If the bollards are in the lowered position due to a reverse command, they only rise again after receiving another
command.
As soon as the bollards are in the up position, the integrated flashing lights start to flash constantly, the acoustic
warning signals fall silent and the induction loops are no longer active. The bollards also remain in the up position if a
vehicle approaches to pass through. Passage is only enabled once a corresponding command is given.
The bollards remain in the extended position in case of a temporary power failure. You must manually lower the
bollards if passage is necessary
(see chpt. 8.1)
.
In order to keep the system in operation in case of temporary power failures, it can be equipped with an emergency
power generator (UPS device).
The acoustic warning signals can be deactivated at night by using timers.
Heating elements can be used if bollards are used in areas where the temperatures fall below –10°C. The heating
elements prevent the formation of ice between the cylinder and frame and also ensure functionality at low
temperatures.
If bollard systems are used in areas with water-bearing layers, watertight foundation boxes with automatic immersion
pumps can be used. The immersion pumps pump the rainwater out of the watertight foundation boxes and ensure
system functionality.
DPT280
UK