JVA ZLM1, Руководство пользователя

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Page 26 © JVA Technologies Pty. Ltd. www.jva-fence.com
8.6.4 When an Alarm Occurs
An Alarm will occur if there is a fault on the fence caused by a short or an
open circuit (cut), while the system is armed. The internal beeper and the
Keypad may sound, depending on how your system is configured.
There are 3 ways the ZLM1 can detect a fence fault:
1. The low voltage fence is cut (open circuit)
2. The low voltage fence is shorted to ground (LV short)
3. A high voltage wire shorts to a low voltage wire (HV Short)
Note: If the ZLM1 is monitoring a fence that has a disarmed energiser on it,
a ground alarm will occur when one of the HV wires touches a LV wire. This
is because the ZLM1 pulse will ground through the energisers transformer.
Whilst the ZLM1 is correct in stating that there is a ground short, please be
aware of this when diagnosing fence faults.
If the system is armed and the fence is tampered with, the Relay LED will
flash and then remain on. A siren or strobe connected to the unit will turn
on. If the energiser is connected to an alarm system for monitoring, an
alarm signal will be sent to the alarm company monitoring the alarm sys -
tem.
The Relay LED will only turn on if it is programmed to the specific fence
alarm.
8.6.5 To Silence an Alarm
• Enter your PIN (default is 1234) and press #. This will silence the alarm
but not disarm the system; the Armed Light will still be on. The sys -
tem will be ready for the next alarm. (Note that the following functions
have an effect on alarm timing: Siren On time, Siren Off time, Siren
Cycles, Auto Re-arm time).
• The siren and strobe are ready to respond again if triggered.
• To disarm the system, enter your PIN and press # again. This will also
clear the fence alarm light.
• Alternatively, disarming using input switch will reset the alarm.
• If you silence an alarm and the problem is still present when the unit
is rearmed, the siren will sound again after the programmed off time
has elapsed.