
MMU-16LE
SmartMonitor
Operations Manual
Eberle Design Inc.
Page 31
6.2.2 MINIMUM FLASH TIME PROGRAMMING
The MMU-16LE
SmartMonitor
®
Programming Card contains a group of soldered wire
jumper holes to set the Minimum Flashing Indication time after an MMU Power Failure. The
programming of the Minimum Flash time is in a binary encoded format. The addition of a
soldered wire jumper in a jumper hole pair will add that designated input value to the binary
weighted sum plus 1 second (minimum period is 6 seconds). This provides a programming
range from 6 seconds to 16 seconds.
b8
b4
b2
b1
Delay Period
Open
Open
Open
Open
6 seconds
Open
Open
Open
Jump
6 seconds
Open
Open
Jump
Open
6 seconds
Open
Open
Jump
Jump
6 seconds
Open
Jump
Open
Open
6 seconds
Open
Jump
Open
Jump
6 seconds
Open
Jump
Jump
Open
7 seconds
Open
Jump
Jump
Jump
8 seconds
Jump
Open
Open
Open
9 seconds
Jump
Open
Open
Jump
10 seconds
Jump
Open
Jump
Open
11 seconds
Jump
Open
Jump
Jump
12 seconds
Jump
Jump
Open
Open
13 seconds
Jump
Jump
Open
Jump
14 seconds
Jump
Jump
Jump
Open
15 seconds
Jump
Jump
Jump
Jump
16 seconds
It is recommended that the Minimum Flash Time be programmed on the MMU-16LE
SmartMonitor
®
to facilitate an orderly start-up sequence of the Cabinet Assembly upon
application or restoration of AC LINE power. The amount of flash time is typically equal to
the amount programmed on the Controller Unit (minimum 6 seconds). The Minimum Flash
Time should be long enough to ensure all cabinet components are initialized and ready
before the MMU-16LE
SmartMonitor
®
transfers the OUTPUT relay and places the
intersection into operation.
6.2.3 MINIMUM YELLOW CHANGE DISABLE PROGRAMMING
The MMU-16LE
SmartMonitor
®
Program Card contains a group of 16 soldered wire jumper
holes to disable Minimum Yellow Change Monitoring for each channel. A soldered wire
jumper in a jumper hole pair will
DISABLE
Minimum Yellow Change Monitoring for that
channel.
Minimum Yellow Change Monitoring requires activity on all three channel inputs (Green,
Yellow, and Red) to detect a Minimum Yellow Change Fault. This function should be
disabled for channels which do not provide a true Yellow Change interval equal to or
greater than 3 seconds.
6.2.4 VOLTAGE MONITOR LATCH PROGRAMMING
The MMU-16LE
SmartMonitor
®
Program Card contains two soldered wire jumper hole pairs
to cause +24V Monitor and Controller Voltage Monitor (CVM) faults to be latching. A
soldered wire jumper in the jumper hole pair labeled 24V Latch Enable will
ENABLE
the
latching mode for +24V Monitoring. A soldered wire jumper in the jumper hole pair labeled
CVM Latch Enable will
ENABLE
the latching mode for CVM Monitoring.
If the latch mode is enabled for either of these monitoring functions, the MMU-16LE
SmartMonitor
®
will remain in the fault mode until the unit is reset by the RESET button or
the EXTERNAL RESET input. Restoration of the proper input voltage or an MMU Power
Failure will not reset the unit.