Xtralis VESDA VLS Product Manual

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Xtralis VESDA VLS Product Manual Manual pdf 24 page image

VESDA VLS Product Guide VESDA by Xtralis16 www.xtralis.com3.4 RelaysThe relays on the Head Termination card interface to Fire Alarm Control Panels communicating faults, alarmsand isolate states. The relays can be programmed using PC based software or the LCD Programmer and canbe assigned multiple assignments. See the LCD Programmer Manual for details. Relays 3 and 6 arepermanently set for Urgent Fault and Fire 1 respectively and can be programmed for additional functions. Thetable below illustrates default assignments for relays and assignment of multiple functions. It is possible toassign the same function to more than one relay.Note: Assignments to relays 3 and 6 are fixed to Urgent Fault and Fire 1 respectively. These relays maybe assigned additional assignments.3.4.1 Relay Settings and Conditions to Change StatesRelay # Default State change Latch1 Isolate Energizes when an operator isolates the detector bypressing the Isolate key on the Display Module or byactivating the command via a PC or a LCD Programmer orGPI option.Unlatched2 Minor Fault De-energizes when a Minor Fault is detected. Latched3 Urgent Fault De-energizes when an Urgent Fault is detected. Latched4 Alert Energizes when the Alert alarm is initiated in any sector. Latched5 Action Energizes when the Action alarm is initiated in any sector. Latched6 Fire 1 Energizes when the Fire 1 alarm is initiated in any sector. Latched7 Fire 2 Energizes when the Fire 2 alarm is initiated in any sector. Latched8 First alarm Sector 1 Energizes when the first alarm sector 1 has beenidentified.Latched9 First alarm Sector 2 Energizes when the first alarm sector 2 has beenidentified.Latched10 First alarm Sector 3 Energizes when the first alarm sector 3 has beenidentified.Latched11 First alarm Sector 4 Energizes when the first alarm sector 4 has beenidentified.Latched12 Scan Energizes when the Scanner is scanning the inlet ports. LatchedTable 3-3: Relay settings and conditions to change state for 7 and 12 relays head termination card