Centurion SECTOR 3, Руководство по установке

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Page 18
If no closing signals are received, the boom will lower once the auto-lower time has
expired. As with Simplex Mode described above, the input activates the moment that
the button is pressed.
!
CENTURION recommends that an inductive loop detector, such as the one provided
onboard, is used as the closing loop. This also acts as a safety loop while the vehicle is
present on the loop detector. As an alternative, but not recommended is to use a set of
infrared safety beams. It is recommended that two sets of safety beams are used,
which are spaced about 500 millimetres apart.
!
There is a Non-Memory Input (NMI) to raise the boom pole when activated by a ticket
vending machine, pay parking system, etc. In Complex Mode, the boom will always
lower the first time that a closing signal is received, irrespective of how many trigger
impulses were received on the NMI input. For example, even if the button is pressed
twice, the closing loop will only need to be cleared once for the pole to lower. As with
Simplex Mode, the input is activated once the button is released.
!
A ticket vend interlock is available via a potential-free contact to prevent the issuing of
tickets if the boom pole is raising or raised. These contacts can also be used as a
potential-free contact for courtesy or security lights that illuminate automatically when
the barrier is operated and remain illuminated for an adjustable period of time
afterwards.
2a. Free-exit (typically applicable to Complex Mode)
!
It is possible to use the free-exit facility on the controller to automatically raise the
barrier for vehicles exiting the parking area or premises
!
It is recommended to use an Inductive Loop Detector to activate the free-exit
facility. Alternatively, a set of infrared safety beams may be used, but this is not
recommended
!
The system can be configured for uni-directional traffic with the barrier dedicated as a
free-exit barrier. The closing loop will be used to lower the barrier the moment the
vehicle has exited
!
It can also be configured for bi-directional traffic with the same barrier providing
access control for vehicles entering and free-exit for vehicles exiting. The free-exit
loop must be mounted close enough to the closing loop so that the vehicle exiting is
still present on this loop when it reaches the closing loop. However, these must not be
too close together, or magnetic interference will be caused
3. PLC mode
!
In this Mode of Operation, separate inputs are controlled via pushbutton or directly
from a third-party programmable logic controller or PC to raise, lower and stop the
barrier
!
There is one safety input for use with an Inductive Loop Detector or infrared safety
beams to prevent the boom pole from lowering onto a vehicle
4. Spike mode
!
The Mode of Operation will only be enabled if the controller is used as a CLAWS
controller and will never be used on a stand alone SECTOR.
!
The purpose of Spike Mode is simply to switch controller functionality to drive CLAWS