4.4 Trouble operation
When the trouble condition occurs, the control unit's operator interface shows the following:
• The yellow SYSTEM TROUBLE LED starts flashing.
• You can see the different LEDs to see specific troubles:
- If there are troubles on the IDC zone, the respective zone’s yellow TROUBLE LED starts flashing.
- If there is AC loss, the green AC POWER LED turns off.
- If there are battery faults, the yellow BATTERY TROUBLE LED starts flashing.
- If there are ground faults, the yellow GROUND FAULT LED starts flashing.
- If the system is disabled, the respective yellow DISABLED LED starts flashing.
• The local piezo produces a steady tone.
• The system activates the general trouble relay.
• Communicate the trouble condition to the central station, and the remote station if programmed.
• The system stores a trouble event in the history file.
When you press the ACK key, the following actions occur:
• The SYSTEM TROUBLE LED and all other specific trouble indicators illuminates steady.
• The local piezo turns off.
• The system stores an acknowledged event in the history file.
The following are latch-able trouble:
NAC over current Trouble: NAC short during alarm condition
Recovery steps:
• Clear the alarm condition and reset the panel.
• Reset the panel again to clear the trouble.
page 9 579-1403 Rev A
2004 Foundation Series Fire Alarm Control Unit Operation Guide
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