VESDA-E VEP-A00-P Product Guide
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67
Function
State Change
Mains OK
Unmonitored GPI
l
The detector reports “Power Supply
AC Input Failure” (fault 761) when ≤ 2
VDC.
l
The detector does not report “Power
Supply AC Input Failure” (fault 761)
when ≥ 5 VDC.
Monitored GPI
l
The detector does not report “Power
Supply AC Input Failure” (fault 761)
while the contact is open.
l
The detector reports “Power Supply
AC Input Failure” (fault 761) while the
contact is closed.
Refer to Figure 4-38 in Section 4.3.10 on
page 40 and Section 4.3.11 on page 41 for
further information.
0V
5V
Fault 761
Open
Closed
Fault 761
Standby Mode
Unmonitored GPI
l
The detector is held in Standby mode
(see Section 7.1) while ≥ 5 VDC.
l
The detector exits Standby mode at a
5 VDC to 0 VDC falling edge.
Monitored GPI
l
The detector is held Standby mode
(see Section 7.1) while contact is
closed.
l
The detector exits Standby mode
when the contact opens.
Note:
No alarms can be generated
while the detector is in standby
mode.
0V
5V
Standby
Open
Closed
Enabled
Standby
Reset
Enabled
Reset
Disable
Unmonitored GPI
l
The detector is held disabled while ≥
5 VDC.
l
The detector is enabled on a 5 VDC
to 0 VDC falling edge.
Monitored GPI
l
The detector is held disabled while
contact is closed.
l
The detector is enabled when the
contact opens.
Note:
No alarms are signalled while
the detector is disabled.
0V
5V
Disabled
Enabled
Open
Closed
Disabled
Enabled
Table 5-3: GPI Operation (continued...)
Summary of Contents for VESDA-E VEP-A00-1P
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