889-3809-00
Model 2018 Operations Manual Rev Apr 2020 Page
9
of 41
permissive with the programmed opposing channel thus causing a conflict with the Green or Yellow
of the opposing channel if they are on.
LED Thresholds
: When LED Thresholds is enabled the monitor senses Greens, Yellows, and Reds as
ON when their voltage is above 25V
RMS
and OFF when below 15V
RMS
for the conflict test.
2.5.2
RED FAIL MONITORING
Configuration
: All channels with a setting of “ON” for Red Fail switches will be monitored for the red fail fault.
The testing defaults for this feature are all channels enabled for red fail testing.
Test Preformed
: When a channel has no displays active (Red, Yellow, or Green) a red fail timer is started. If a
display turns on for the channel the red fail timer is stopped (it is not cleared) and a non-red fail timer is started. If
the no active display condition returns the non-red fail timer is reset to zero and the red fail timer continues timing
from its prior value. If the red fail timer reaches 800 milliseconds or more the monitor will latch a red fail fault. If
the non-red fail timer reaches 300 milliseconds the red fail timer is reset to zero and the red fail is ignored. The
normal voltage thresholds for this test are: Reds – ON when above 70V
RMS
and OFF when below 50V
RMS
, Greens
and Yellows – ON when above 25V
RMS
and OFF when below 15V
RMS
.
Fault Action:
The monitor transfers the Output relay contacts to the fault condition, activates the Stop Time
output, and illuminates the
RED FAIL
indicator on the front panel. The Signal Sequence log and the Prior Faults
log will record this fault.
Resetting the Fault:
The monitor remains in this fault condition until the unit is reset by the activation of the front
panel reset pushbutton or the activation of the reset input. Power loss or power interruption will not reset this fault.
The Reset log will record the resetting of this fault.
Modifying Inputs
:
Red Enable
: All red fail testing will be disabled when this input is below 50V
RMS
and enabled when
this input is above 70V
RMS
.
MC Coil (Relay Output, Side 2)
: All red fail testing will be disabled when this input is below 50V
RMS
and enabled when this input is above 70V
RMS
.
Special Function 1
: When operating normally, all red fail testing will be disabled when this input is
below 50V
RMS
and enabled when this input is above 70V
RMS
. When inverted, all red fail testing will
be enabled when this input is below 50V
RMS
and disabled when this input is above 70V
RMS
.
Special Function 2
: This input has no effect unless it is enabled through the RaeComM software.
When operating normally, all red fail testing will be disabled when this input is below 50V
RMS
and
enabled when this input is above 70V
RMS
. When inverted, all red fail testing will be enabled when this
input is below 50V
RMS
and disabled when this input is above 70V
RMS
.
Feature Interactions
:
Red Enable Must Be Active (Option Jumper 3)
: When Red Enable Must Be Active is jumpered the
Red Enable input and at least one Red input must be active or a red fail fault will be generated.
Yellow Disable Jumpers
: When Yellow Disable is jumpered for a channel that Yellow is removed
from red fail testing for that channel. If the Yellow is a child of a Flashing Yellow Arrow channel, the
Yellow will still be used in the parent channel’s red fail test regardless of the Yellow Disable jumper
setting of the child channel.
2010 Mode
: When the 2010 mode of operation is enabled the timer thresholds are changed from 800
milliseconds to 1300 milliseconds for fault detection and the reset of the fault timer is still 300
milliseconds. NOTE: These times will be overridden by the Flashing Greens option if both features
are active.
LED Thresholds
: When LED Thresholds is enabled the Greens, Yellows, and Reds are sensed as ON
when their voltage is above 70V
RMS
and OFF when below 50V
RMS
for the red fail test.
Flashing Greens (also known as Canadian Fast Flash)
: When Flashing Greens are enabled the timer
thresholds are changed from 800 milliseconds to 1500 milliseconds for fault detection and from 300
milliseconds to 200 milliseconds for the reset of the fault timer. NOTE: These times will override the
2010 Mode times if both features are active.
Flashing Yellow Arrow Left Turns
: When Flashing Yellow Arrow (FYA) Left Turns are enabled and a
Channel has an FYA setting with a green border for one of its child channels (child channel is
permissive with the parent channel), then the Green of the child channel will be included in the red fail
test for that channel. If a Channel has an FYA setting with a yellow border for one of its child
channels, then the Yellow of the child channel will be included in the red fail test for that channel.
