VESDA -E VES-A00-P Product Manual page 74

VESDA-E VES-A00-P Product Guide
Function
Use Night-time Unmonitored GPI
Threshold
l
Monitored GPI
l
Note:
Reset + Disable Unmonitored GPI
l
Monitored GPI
l
Inverted Reset Unmonitored GPI
l
Monitored GPI
l
Notes:
When using the standby or disable options it is recommended that all remote displays on VESDAnet are
l
configured to have the Isolate button locked out.
When the detector is disabled or set to standby via the GPI, the status cannot be changed through the
l
normal enable / disable function on the front panel or via Xtralis VSC or a remote display. Refer to
Section 2.3.2 on page 7 for further information.
When the night-time thresholds are invoked via the GPI, the clock settings for day-start and night-start
l
are overridden.
68
Table 5-3: GPI Operation (continued...)
The detector uses night-time
thresholds while ≥ 5 VDC.
The detector uses night-time
thresholds while the contact is
closed.
While the GPI is off (contact
open, voltage ≤ 2V), the day or
night thresholds are determined
according to the internal clock
and the configuration of the
detector (using Xtralis VSC).
Detector resets on a 0 VDC to 5 VDC
rising edge and on 5 VDC to 0 VDC
falling edge, and;
Detector is held disabled while ≥
l
5 VDC.
Detector is enabled on a 5 VDC
l
to 0 VDC falling edge.
The detector resets on closure or
opening of the contact, and;
The detector is held disabled
l
while contact is closed.
The detector is enabled when
l
the contact opens.
The detector resets on a 5 VDC to 0
VDC falling edge.
The detector resets on the opening of
the contact.
State Change
5V
0V
Day or Night
Closed
Open
Day or Night
5V
0V
Reset
Closed
Open
Reset
5V
0V
Closed
Open
Night Day or Night
Night Day or Night
Disabled
Reset and
enabled
Disabled
Reset and
enabled
Reset
Reset
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