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7.3.3
Technical alarms
7.3.4
Intrusion alarm
7.3.5
Anti-pass-back alarm
NOTICE
To limit the number of false alarms, the system measures the time required for the entrance
door to close and compares it to the reference time:
If the closure time is less than the reference time, an anti-pass-back alarm triggered.
If, on the other hand, the time is longer or equal to the reference time, an intrusion alarm
triggered.
This reference time has present in the factory using very precise closing speed data, so it is
important not to modify it!
7.3.6
Throw-in alarm (optional)
BAL_FF_TWIN_EN_3V0_REC_121-006454269
This alarm is triggered if a traffic flow interruption has
lasted too long or if a technical error has been detected.
A reset is required to deactivate this alarm. A ringtone
sounds at regular intervals as a reminder.
This alarm is triggered if someone tries to cross the sys-
tem in the opposite direction and the entrance door does
not close within a reasonable time.
This alarm is triggered if someone tries to cross the facil-
ity in the opposite direction while the entrance door is
closed or closes within a reasonable time.
The alarm triggered when a person or object has passed
the light curtain in the opposite direction at the exit of the
tunnel.
The response of the system is the same as for a return
alarm, but a separate alarm contact is activated.
7
Malfunctions
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