PD154 & PD158 Vigilante II Annunciators
Instruction Manual
15
Relay Fail-Safe Programming Example
The following is an example of relay fail-safe setup.
Relays 1 and 2 are changed from the default settings
of normal operation to fail-safe operation.
1. Press and hold
ACK
and
RESET
for 3 sec-
onds. When all LEDs cycle, release.
2. Press
RESET
within 3 seconds of release
while LEDs cycle. All LEDs blink in unison.
3. Press
RESET
again within 3 seconds while
LEDs blink
4. LED 1 will be off
indicating normal
operation of relay 1.
LEDs 2 through 4
will be dim.
5. Press Reset to
change LED 1 from
off to on, setting
relay 1 for fail-safe
operation.
6. Press
ACK
to
confirm the setting
for relay 1and
proceed to program
relay 2.
7. Press
RESET
to
change LED 2 from
off to on, setting
relay 2 for fail-safe
operation.
8. Press
ACK
to confirm the setting for relay 2.
9. Press and hold
ACK
for 5 seconds to return
to normal operation.
Note:
LEDs 3 and 4 are used for the silence
pushbutton enable/disable option (see page 15)
and no lock-in option (see page 16)
Relay Operation Overview
The following figure illustrates the operation of the
relays.
ACK
Pressed
ON
OFF
Relay 1
ON
OFF
Relay 2
ON
OFF
Relay 1
ON
OFF
Relay 2
N
O
R
M
A
L
FA
IL
-S
A
FE
Alarms
Cleared
Alarm
Occurance
Relay On:
Relay is energized
Relay Off:
Relay is de-energized.
Alarm Occurrence:
A new alarm occurs when there
is no previous unacknowledged alarm.
ACK Pressed:
The Acknowledge pushbutton is
pressed, acknowledging the alarm.
Alarms Cleared:
All LED indicators are cleared of
alarm state indication
Audible Horn Enable/Disable
The annunciator contains an audible internal horn.
This horn may be disabled with the rear-mounted
switch located above the signal connector. To enable
the horn, move switch 4 to the ON position. To
disable the horn, move switch 4 to the OFF position.
Sequence
F2A
Horn
Enabled
Sequence
F2A
Horn
Disabled
Enabling/Disabling Silence
Option
ISA sequence option 1,
Silence Pushbutton
, includes
a silence pushbutton. This option may be disabled,
removing any effects of the silence pushbutton or
silence pushbutton external contact. This option is
enabled by factory default.
