LaserPLUS Product Guide VESDA
®
14
LaserPLUS relay Assignments and Conditions to Change States
Relays 1, 2, 4, 5 and 7 are fully configured. (For example, relay 5 could be configured to de-
energize on Alert)
Note: Assignments to relays 3 and 6 are fixed to Urgent Fault and Fire 1 respectively.
These relays may be assigned additional assignments.
Table 3 - Relay assignments and conditions to change state for 7 relays HTC
Relays default settings
Note: A indicates the default setting. Relays 3 and 6 are permanently configured for
Urgent Fault and Fire 1 respectively. All other relays can be re configured. More
than one function can be configured to any relay.
Table 4 - Default relay assignment
Relay # Default State change Latch
1 Isolate Energizes when an operator isolates the detector by
pressing the Isolate key on the Display Module or by
activating the command via a PC or a LCD Programmer
or GPI option.
Unlatched
2 Minor Fault De-energizes when a Minor Fault is detected. Latched
3 Urgent Fault De-energizes when an Urgent Fault is detected. Latched
4 Alert Energizes when the Alert alarm is initiated. Latched
5 Action Energizes when the Action alarm is initiated. Latched
6 Fire 1 Energizes when the Fire 1 alarm is initiated. Latched
7 Fire 2 Energizes when the Fire 2 alarm is initiated. Latched
Relay 1234567
Isolate
Minor Fault
Urgent Fault
Alert
Action
Fire1
Fire 2
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