Xtralis VESDA VFT-15-C, Руководство по эксплуатации продукта

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VESDA VFT-15 Product Guide
VESDA by Xtralis
28 www.xtralis.com
TRCLTCH, ALTLTCH, ACTLTCH, F1LTCH, F2LTCH
Defines whether Alarm events are to be latched. If not latched, the Alarm condition will clear as soon as the
cause disappears. If latched, the system must be reset to clear the Alarms. Note that the ACCEPT or
SOUNDER SILENCE buttons may be used to stop the internal sounder, and the ISOLATE button may be
used to disable all Alarm relays. The default is 1 (Latching).
FLTLTCH
A FAULT condition will exist if any specific fault within the system is detected. It will be accompanied by
closure of the Normally Closed contacts of the FAULT relay, and illumination of the GENERAL FAULT
indicator. If it is made Latching, the relay contacts and indication will remain even after the originating Fault
condition has ceased, and the system must be reset to clear FAULT. The default is 1 (Latching).
TRCRLY
Optionally, the ALERT relay can be re-assigned to activate when the detector goes into TRACE mode. To do
this set it to 1. The default is 0. The Alert relay will then act as a Trace relay.
When the TRCRLY parameter is set to 1, an Instantaneous Fire feature is also enabled. The Instantaneous
Fire feature allows an overall Fire 1 alarm to be immediately generated once the overall smoke level exceeds a
diluted Fire 1 threshold. The diluted Fire 1 threshold is determined by selecting the highest of two threshold
values:
1. The Trace threshold; or
2. A diluted threshold calculated from taking the lowest active Sector Fire 1 threshold and dividing it by
the number of active sectors.
Note: The Instantaneous Fire feature is only available to units with Firmware Build 407 or greater.
Refer to Section 2.2.1 for further information.
REFCOMP, REFDEL
Not used. Leave at default settings.
FLOWLOG
If there is a change in flow greater or equal than this value and there is currently a flow fault, an entry in the log
is made of the new value.
FLOWDEL
Flow Fault Delay. The time period in seconds for which a Flow Fault must be sustained before registering as a
fault. The default is 5 seconds. The range is 1 to 60 seconds.
FLOWHI, FLOWLO
High and Low limits set for Flow Fault. Note that Flow readings are normalized to 100%. All systems must
normalized at the installation stage. Refer to Section 4.1 and Appendix C for further information.
SETFAN
This sets the speed of the pump. The default value of 7 should be maintained to comply with VdS and UL
requirements. Note that during an alarm condition the pump will increase speed to the maximum value of 10.
The speed will revert back to 7 when the alarm condition has cleared.
STANDBY
This enables the monitoring of battery voltages on the internal power supply unit. It should be left to its default
setting of '0' Disabled, for all other power supplies.
PWRDEL
This sets a time delay between a power supply fault being reported by the internal power supply unit and the
fault condition being displayed by the detector. This would normally be left at the default value of 10s.
BUZZER
The internal sounder may be enabled or disabled on a permanent basis. The default is 1 (enabled). The
sounder (if enabled) accompanies all ALARM conditions.
BEACON
The integral Beacon may be enabled or disabled on a permanent basis. The default is 1 (enabled). The beacon
(if enabled) accompanies all ALARM conditions.