Features of the Onguard 800 System Fault Module Monitors complete 800 panel Announces the removal of any module Announces any open fuses Fault relay output DC low and high voltage limit monitoring Auxiliary fault input connection Audible fault can be silenced All field wiring supervised per NFPA

Onguard 800 System Fault Module

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.

Approvals

Specifications of the Onguard 800 System Fault Module

Onguard 800 Series Gas and Fire Control Panel Components

• Rack Enclosure
• Abort Module
• Input Module
• Alarm Module
• Release Module
• Input Vote Module
• Manual Pull Module
• NT-420 Gas Module
• Fault Module
• Relay Module
• Cycle Release Module