VESDA VLI Product Guide
VESDA by Xtralis
8
www.xtralis.com
2.3
Front Panel
The VLI detector provides the following information and control capability:
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Status LEDs:
Alarm, Pre-Alarm, Disabled, Fault and Power.
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Controls:
Reset and Disable button.
Figure 2-3: Front Panel Controls and LEDs
Status LEDs
Table 2-1: LED Indicators
LED
Description
Alarm
The Alarm LED is lit when the Fire 1 Alarm threshold is reached.
Pre-Alarm
The Pre-Alarm LED blinks when the Alert threshold is reached.
The Pre-Alarm LED is lit when the Action threshold is reached.
Disabled
The Disabled lamp is lit when the detector is disabled.
Fault
The Fault LED is lit when a fault is detected, when airflow
normalization is being performed or when the Clean Air Zero function
is in progress.
Refer to Chapter 8 for information on troubleshooting.
Power
The POWER LED illuminates when the detector is powered up.
Reset / Disable Button
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To reset the detector, press this button once.
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To disable the unit, press and hold the button for approximately 2 seconds, until the Disabled
LED illuminates.
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To re-enable the unit, press and hold the button for approximately 2 seconds, until the
Disabled LED deactivates.
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While the detector is disabled, any faults may be cleared by pressing this button once.
The button will not operate if:
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a remote reset switch has been fitted to the Reset (GPI) terminals and is set to the Isolate
position; or
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the Reset/Disable button has been locked out in the programming.
Содержание VESDA VLI
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