How The Panel Works In Mode 3 - Mircom FR-320 Series Installation And Operation Manual

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12.3.4 How the Panel Works in Mode 3

• Activation of either Z-1 or Z-2 changes Hazard Area1 state from Idle into Alert. NAC-1
turns on at Temporal.
• Activations of both Z-1 and Z-2 change Hazard Area1 state from Alert into Alarm. NAC-
1 turns on at 120BPM. Release timer-1 is started.
• Upon the expiration of Release Timer-1, RAC-1 is activated. NAC-1 turns on steady.
• Short on Z-5 indicates Manual Release Switch active. Manual Release Delay Timer 1
(MDT-1) is started. NAC-1 turns on at 120 BPM while this timer is running. Upon the
expiration of MDT-1, NAC-1 turns on steady and RAC-1 is activated.
• A current limit on Z-5 means Abort Switch active. Hazard Area 1 state changes from
Alarm to Alert. Release Timer is held and NAC-1 changes from 120BPM to Temporal.
• Removal of the current limit on Z-5 means that Abort Switch is released. Hazard Area 1
state changes from Alert to Alarm. Release Timer -1 resumes running and NAC-1 goes
back to 120BPM. Release Timer-1 value depends on Abort Delay Type.
• Activation of either Z-3 or Z-4 changes Hazard Area 2 state from Idle into Alert. NAC-2
turns on at Temporal.
• Activations of both Z-3 and Z-4 turn the Hazard Area 2 state from Alert into Alarm. NAC-
2 turns on at 120BPM. Release timer-2 is started.
• Upon the expiration of Release Timer-2, RAC-2 is activated. NAC-2 turns on steady.
• Short on Z-6 indicates Manual Release Switch active. Manual Release Delay Timer -
2(MDT-2) is started. NAC-2 turns on at 120 BPM while this timer is running. Upon the
expiration of MDT-2, NAC-2 turns on steady and RAC-2 is activated
• A current limit on Z-6 means Abort Switch active. Hazard Area 1 state changes from
Alarm to Alert. Release Timer -2 is held and NAC-2 changes from 120BPM to Temporal.
• Removal of the current limit on Z-6 means Abort Switch is released. Hazard Area 1 state
changes from Alert to Alarm. Release Timer -2 resumes running and NAC-2 goes back
to 120BPM. Release Timer-2 value depends on Abort Delay Type.
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Hazard Alarm: 120 BPM
Hazard Release: Steady
Pre-Programmed Modes