889-3819-00
MMU2-1600GE series Operations Manual Rev Apr 2020 Page
34
of 51
4.6.2.1.7.2
DUAL INDICATION / FIELD CHECK
Use the arrow pushbuttons to navigate between the settings. Use the
ENTER
pushbutton to toggle a setting. Press
the
ESCAPE
pushbutton to exit.
CHANNEL 1-16 DUAL INDICATION / FIELD CHECK – When this feature is enabled for a channel, the channel
will be checked for more than one field indication being sensed as ON and the monitor will check the field status
of each indication against the controller commanded state for each indication. Dual Indication and Field Check
testing for each channel are turned on or off together. Enabled is indicated by a
Y
and disabled is indicated by a
dash
(
−
). Typically all vehicle channels are enabled although special consideration should be given to channels
that are part of a vehicle display with more than three sections. Pedestrian channels can be enabled, but care must
be taken to insure that the monitoring of the yellow portion of the channel matches what the controller thinks it
should be. If not considered, field check faults may occur. The factory default for the Dual Indication / Field
Check settings are all channels enabled. See Section 2.5.3 for more detailed information on Dual Indication
testing. See Section 2.5.7 for more detailed information on Field Check testing.
GRN-YEL MON ENABLED – When this feature is enabled the monitor will check for simultaneously active
Green and Yellow field signal inputs on the same channel. This feature is active on all channels when selected and
is not active if the Red Enable input is not active. The factory default for Green-Yellow Dual Indication
monitoring is off. See Section 2.5.4 for more detailed information on Dual Indication testing.
The Green - Yellow Enable feature can be used in conjunction with the Field Check / Dual Enables feature.
Channels which have their Field Check / Dual Enable settings enabled will perform full Dual Indication
monitoring. Channels, which have their Field Check / Dual Enable settings disabled, will perform the Green-
Yellow Dual Indication monitoring only.
4.6.2.1.7.3
PER CHANNEL RED ENABLES
Use the arrow pushbuttons to navigate between the settings. Use the
ENTER
pushbutton to toggle the setting.
Press the
ESCAPE
pushbutton to exit. See Section 2.6.5 for more detailed information on Per Channel Red
Enables.
PER CHAN RED EN / CO-CHAN – When this feature is enabled the monitor will only perform Red Fail and
Field Check monitoring for channels that have been enabled for this feature when the Red Enable input is active.
Only the Red Fail and Field Check monitoring are affected by this feature. Other monitoring normally controlled
by the Red Enable input (Short Yellow, Short Clearance, and Dual Indication) still operate as defined and are not
affected in any way by the activation of this feature. The factory default for this feature is no.
Enabling this feature also enables the Co-Channel feature. The Co-Channel feature allows the user to modify the
Red Fail test for each channel to include the Green, Yellow, and/or Walk displays from other channels.
CHANNEL 1-16 RED ENABLES – Enabled is indicated by a
Y
and disabled is indicated by a dash
(
−
). The per
channel settings will be active only if the Per Chan Red En / Co-Chan setting is set to
YES
. The factory default for
the channel settings of this feature is all channels enabled.
4.6.2.1.7.4
FLASHING DON’T WALK MONITORING
Use the arrow pushbuttons to navigate between the settings. Use the
ENTER
pushbutton to toggle the setting.
Press the
ESCAPE
pushbutton to exit. See Section 2.6.1 for more detailed information on Flashing Don’t Walk
Monitoring.
FLASH DW MON ENABLED – When this feature is enabled the monitor will check Flashing Don’t Walk
(channel Red) of the channels configured as Channels With Pedestrian Displays, to confirm that they do not
conflict with other Greens, Yellows, or Walks at the intersection. When a fault is detected due to this feature, it is
displayed as a Conflict and the channel with a flashing RED input that was involved in the detected fault will be
flashing its RED LED.
CHANNEL 1-16 CHANNELS WITH PEDESTRIAN DISPLAYS SETTINGS – Enabled is indicated by a
Y
and
disabled is indicated by a dash
(
−
). In Type 12 mode of operation, any enabled channel will have its walk input
removed from the red fail test. The factory default for the channel settings of this feature is all channels disabled.
4.6.2.1.7.5
PERMISSIVE LEFT TURN (FYA) SETTINGS
The Permissive left turn (FYA) has 3 Selections.
PPLT5 – In this mode the Left turn indication consists of 5 Separate drivers. It modifies the Red Fail Test.
The "Parent" Channel consists of the Green Ball, Yellow Ball and Red Ball signal indication. The "Child"
Channel Consists of the Solid Green Left Turn Signal Indication, and the Solid Yellow Left Turn Signal
Indication.
CO-CHAN INCLUDES YEL – When this feature is enabled the monitor will include the yellow of
the child channels as well as the green (and the Walk if in Type 12 mode). The factory default for this
feature is
NO
.
