FL 128 Multizone System 15.01.2021 7
When a zone or certain system alarms are detected a full text message of the nature of the alarm is displayed
on the control unit’s LCD, a red LED indicator flashes and buzzer sounds. Any person pressing the MUTE button
can silence the buzzer, but this does not cancel the alarm or clear any of the visual alarms.
A zone can be in one of 4 states:
• Normal (no alarms).
• Short Circuit.
• Open Circuit.
• Leak Detected.
In addition to the above alarms further system self-test alarms can be generate as listed below
• Drop Dead (complete power failure)
• Mains Fail
• Low Battery
• Remote Disconnected
• Display Disconnected
• Display Communication Failure
• Module communication Failure
A range of volt-free contact, changeover output relays are included for: -
Drop Dead (complete power failure) rate at 5Amps @ 28Vdc.
Mains Fail rate at 5Amps @ 28Vdc.
Common Leak Detected (in any zone) rate at 5Amps @ 28Vdc.
Common System Fault (open and short circuit faults any zone) rate at 5Amps @ 28Vdc.
Self-test (For low battery, communications failure alarms, remote/display disconnect alarms) rate at 5Amps @
28Vdc.
The Location of the relays on the motherboard housed in the base unit is shown in Appendix A.
Individual volt free changeover relays can be provided as an optional extra to give an output for LEAK detection
per zone. These can, in turn, be wired together to provide a single additional output for a group, or groups, of
zones. This can be a useful technique in prioritising, or ranking the importance of individual areas, ie. “double
knock”.
To Next Page
Loading...