Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL
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2.4.11 Factory Settings
The monitor is configured at the factory during final test. Data set at the factory includes: Model Number, Serial Number,
Manufacture Date, Real Time Clock setting, Support for Flashing Greens, Enhanced Support of Econolite Controllers,
Support for a Diagnostic LCD. The Up Time Accumulator is initialized to zero prior to final testing. Changes to Support for
Flashing Greens, Enhanced Support of Econolite Controllers, and Support for a Diagnostic LCD are logged in the
configuration log.
2.4.12 User Unit Information
The monitor has non-volatile memory that can be used to store the following user unit information: 40 character Location ID,
4 character Unit ID, and 5 character Agency ID. All of these IDs can consist of any alpha-numeric characters. Upper and
lower case characters can be used but all lower case will be displayed as uppercase on the front panel graphic display.
2.5
FAULT MONITORING
2.5.1 Conflict Monitoring
Configuration:
The jumpers installed on the Program Card determine permissive (non-conflicting) channels. A jumper in
the row labeled “2” and the jumper hole pair labeled “6” would make Channels 2 and 6 permissive with each other. This is a
two-way relationship. If channel 2 is programmed as permissive with channel 6 then channel 6 is automatically permissive
with channel 2. The testing defaults for this feature are determined by the jumpers installed on the program card. Typically
no jumpers are installed during automated testing.
Test Preformed:
While a channel has a Green, Walk, or Yellow display active, the channel is tested to see if a non-
permissive channel has a Green, Walk, or Yellow display active at the same time. If concurrently active conflicting displays
are detected a conflict timer is started. If the conflict goes away the conflict timer is stopped (it is not cleared) and a non-
conflict timer is started. If the conflict reappears the non-conflict timer is reset to zero and the conflict timer continues timing
from its prior value. If the conflict timer reaches 300 milliseconds or more the monitor will latch a conflict fault. If the non-
conflict timer reaches 666 milliseconds the conflict timer is reset to zero and the conflict is ignored. The normal voltage
thresholds for this test are: Reds – ON when above 70V
RMS
and OFF when below 50V
RMS
, Greens / Yellows / Walks – ON
when above 25V
RMS
and OFF when below 15V
RMS
.
Fault Action:
The monitor transfers the Output relay contacts to the fault condition (continuity between the Normally Open
and Common contacts), illuminates the
CONFLICT
indicator on the front panel, and sets the Conflict bit (bit 65) of the Type
129 Frame to 1. 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:
None
Feature Interactions:
Flashing Don’t Walk Monitoring
: When Flashing Don’t Walk Monitoring is enabled and channels have programmed as
active for this feature, a flashing red on a channel with this feature active will be included in the displays checked for
conflicts. A conflict with a flashing red must exist for 1500 milliseconds to create a conflict fault.
Flashing Yellow Arrow Left Turns
: When Flashing Yellow Arrow (FYA) is enabled and FYA Ignore Yellow Conflict is
enabled and a Channel has an FYA checked as a child channel that conflicts with this channel a Yellow in the parent
channel and a Yellow in the child channel being active at the same time will be ignored as a conflict when the Yellow of
the parent channel is terminating a flashing Yellow arrow. Also, when Flashing Yellow Arrow (FYA) is enabled and Per
Channel Red Enables is enabled and the channel Red Enable is disabled and Dual Indication / Field Check for the channel
is disabled and Minimum Yellow Change Disable for the channel is not jumpered on the Program Card and the channel
has the actual flashing yellow arrow display the monitor will ignore the unused Green or Yellow of that channel for
conflict tests.
LED Thresholds
: When LED Thresholds is enabled the monitor senses Greens, Yellows, Reds, and Walks 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 will be monitored for the red fail fault unless the Per Channel Red Enables feature is enabled.
When Per Channel Red Enables are enabled only channels that have been programmed as active for this feature will be
included in the displays checked for red fail. The testing defaults for this feature are Per Channel Red Enables is disabled
and all channels enabled for red fail testing.
Test Preformed
: When a channel has no displays active (Red, Yellow, Green, or Walk) 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
