Installation manual

Page 51
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IRBO=IRBC
Configures the opening beam to act as a closing beam while the gates are
closing. This allows one set of beams to be used across the line of the driveway
up to where the gates open.
!
IR beam alarms
While the gate is fully closed, this feature allows the following alarms:
!
IR beam broken time
The time that the beams must be interrupted before the alarm is activated.
!
Break-in alarm
Activates an alarm if the closing
beam on the outside of the
property is interrupted. The alarm
remains activated while the beams
are broken, and for a period of 30
seconds thereafter. This time is
fixed
If this alarm is used, it is
recommended that TWO
parallel closing beams are
used to reduce the chance of
false triggering
Intruder breaks beam
while loitering at gate
Alarm
FIGURE 70
!
Ambush alarm
Activates an alarm if either the
opening or closing beams have
been continuously interrupted for
a predefined time. The alarm will
remain activated while the beams
are interrupted
For example, if a would-be
intruder covers the beams so that
when the gate is opened, the gate
will stay open, the system will
detect this beam override taking
place and set off an alarm
Alarm
Intruder
blocks beam
Adjustable
beam broken
time
FIGURE 69
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Alarm output
The system can be configured to operate one of the following outputs
provided on the controller
!
Onboard buzzer – emits a continuous tone
!
Pillar / Courtesy light contact (potential-free normally-open contact,
fuse protected – 5A)
!
Aux IO (this is an open collector drive, max current draw 3A, not fuse
protected)
!
Safety beam common (this is an open collector drive, max current draw
3A, not fuse protected)
!
Status LED output (operate up to three LEDs in parallel or interface with
multi- LED driver card, CP78)