Kentec Electronics Sigma XT Plus Operation And Maintenance Manual

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Kentec Electronics Sigma XT Plus Operation And Maintenance Manual Manual pdf 38 page image

Man-1112 Sigma XT+_23 Page 38 of 5216.4 Single zone Fire conditionUpon receipt of a fire condition by activation of a detector or call point, the Common Fire indicator on the detectionsection will light, the fire buzzer will sound and the zonal Fire indicator(s) will flash at around 2Hz.The fire and local fire relays will also operate and signal any systems to which they are connected.Any sounders connected to the sounder circuits S1 & S2 on the detection section will operate. These sounders maybe silenced by operation of the silence alarm button with the enable keyswitch operated such that the panel is ataccess level 2.If the zone that has activated is contributing to the extinguishant release sequence on an extinguishant moduleand the module is configured for coincidence activation, the Release Imminent LED on the module will flash, thefirst stage relay contact will operate, the first stage sounder output will operate and the display will show:preactivated ►Pressing the Silence alarm button on the detection section will turn off the sounder outputs on the detectionsection and the first stage alarm outputs on the extinguishant module.16.5 Double zone Fire conditionUpon receipt of a second fire condition that contributes to extinguishant release on modules that are switched toAutomatic and Manual mode with their Hold inputs not active and the Disable Extinguishant function has not beeninvoked, the detection section will respond as above and extinguishant modules will respond as listed below:a) The second stage alarm output will operate. (Sounder circuit S3)b) The 2 nd stage contact will operate.c) The Activated indicator will operated) The display will indicate Activated and show the time remaining until release in seconds.e) The extinguishant output will operate after the configured delay time and for the configured duration.f) The display will show Activated Discharging for the duration of the release time.When detection zones have activated and the activated condition is reached (i.e. the Activated indicator is lit) itshall not be possible to reset the extinguishant section of the panel until the Reset Inhibit timer has elapsed.16.6 Silence/sound alarmsThe Silence/Sound alarm button can only be operated at access level 2. (Enable Control keyswitch operated).To silence the sounders, insert the Enable Control key, turn to the right and press the Silence/Sound alarm button.When the sounders have been silenced, the Zone Fire LEDs will change from flashing to a steady state.Pressing the Silence/Sound alarm whilst the control panel is in this silenced condition will cause the sounders tooperate again.The sounders can be toggled on and off with the Silence/Sound alarm button as required.16.7 ResetTo reset the panel, insert the Enable key, turn to the right then press the Reset button.The extinguishant section will reset only after the Reset Inhibit timer has expired once the activated condition hasbeen established.16.8 Detection Zone faultRemoval of a detector from its base or a fault on any of the zone wiring will cause the Fault LED and Zone FaultLEDs to flash, indicating the zone in which the fault has occurred.16.9 Sounder faultA fault on the wiring to the detection section sounder circuits will cause the Fault LED to light and the SounderFault LED to flash. A fault on the sounder circuits of extinguishant modules (alarm devices as required byEN12094-1) will light the Fault LED on the detection section and on the extinguishant module. The extinguishantmodule will display:stage 1 alarmsfaultorstage 2 alarmsfault16.10 Power faultFailure of the mains power or disconnection of the standby battery will cause the Fault and Power Fault LEDs tolight on the detection section indicating an abnormality in the power supply to the control panel. There will be noindication of this condition on the extinguishant modules.16.11 System fault – Detection sectionThe System Fault and general fault LEDs will light if the configuration memory has not been set or has becomecorrupted.