Troubleshooting; Fault Codes - VESDA VLQ-100 Product Manual

VESDA by Xtralis
9

Troubleshooting

9.1

Fault Codes

Fault codes can be viewed on the LED display or by using the Xtralis QSC software.
Faults 01 though to 18 are hardware faults which require that the detector be replaced.
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Faults 41 through to 50 are generally rectifiable with minimal user interaction.
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To correct some faults, you may be prompted to log on to the detector. The login procedure is described
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in Section 5.1 on page 29.
Fault Code Fault Type
01 Detector Hardware
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
41 24V input power supply
fault
42 Airflow Normalization
Failed
www.xtralis.com
Table 9-1: Fault Codes
Description
Self-test failed
EEPROM fault
Calibration data EEPROM fault
Configuration fault
+12V fan power supply fault / main
board module fault
+5V power supply fault
3.3V power supply fault / main
board version fault
Laser control circuit fault
Smoke signal receive and
amplification circuit fault
Fans fault
Flow circuit fault
Ambient temperature circuit fault
Fault relay control circuit fault
Alarm relay control circuit fault
RTC fault
Chamber BG too high
Chamber BG too low
24V input voltage is lower than 18V
or higher than 30V.
The detector has been unable to
establish a reference level for
normal airflow.
VESDA VLQ Product Guide
Possible Resolution
Contact your authorized
service representative.
Check PSU voltage across
the 0V and +24V terminals
on the rear of the unit with
multimeter to ensure it is
constant and between 18 -
30V DC. Adjust or replace
the PSU as required.
Check the sample holes,
pipe and connection to the
unit for obstruction and
integrity.
Make corrections as
required, restart the unit,
wait 10 minutes then
normalize again.
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