The Fault Module is a common system annunciator triggered by any faults in the system. All faults are displayed locally on each module but are also transmitted centrally to the Fault Module, sounding a sonalert. The sonalert can be silenced while determining the source of the fault. A fault will be noted with the system fault LED and de-energize the failsafe fault relay output.
A protection circuit monitors the power supply voltage for under or over voltage inputs. Should the power supply voltage deviate from its required specification, the system fault LED will illuminate and the sonalert will sound, followed by the relay changing state.
An auxiliary normally closed input is provided to monitor any dry contacts. If the contact is open, the auxiliary LED will illuminate and the sonalert will sound followed by the relay changing state.
Specifications of the Onguard 800 System Fault Module
Approved operating voltage:
20 - 28 VDC redundant power sources
31mA quiescent, 40mA maximum
Dry relay outputs:
5 amps, 30 VDC resistive
Output relay sealed and contains an inert gas
Relay is form C configuration
1.04"W X 3.46"H X 6.4"D
Ambient operating temperature:
0°F to 150°F
-17°C to 65°C
90% humidity non-condensing
Meets factory mutual specification as listed in Class #3820
Packaging and exposure:
Onguard 800 Series Gas and Fire Control Panel Components