Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL
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2)
If the AC Line input is Off for 500 milliseconds or more, the monitor transfers the Output relay contacts to the fault
condition. The Start-Delay relay enables continuity between its Common and Normally Open contacts. The time
interval from the start of the AC Line input being Off and the transfer of both relays to these states does not exceed 525
milliseconds. Both relays maintain these states for the duration of the Power Failure.
2.4.2 Minimum Flashing Indication
The monitor includes internal logic to enforce a user definable Minimum Flash time. Once the monitor has transferred the
Ouptut relay contacts to the fault condition, the state of the Output relay contacts is maintained for the Minimum Flash time
before normal operation can resume.
All monitor initiated flash conditions will start the Minimum Flash timer. The monitor will not return to normal operation
until this timer has expired unless it is terminated by use of the front panel reset pushbutton or reset input command which
will cause an immediate transfer to the no fault state.
The duration of the Minimum Flash time is adjustable between the limits of 5 seconds and 15 seconds with an incremental
adjustment of one second and is programmed using jumpers on the Program Card. The NEMA TS-2 specification requires
that the monitor add one second to whatever value is programmed on the program card and that the value on the program
card cannot be set to less than five seconds. This creates a useable range of 6 seconds to 16 seconds.
2.4.3 Reset
Activation of the front panel reset pushbutton or the reset input causes the Output relay contacts to transfer to the no fault
condition. The monitor remains in the no fault condition only if there are no existing faults and all input voltages are at the
proper operating levels. If the Minimum Flash timer is active, activation of the either reset will zero the timer and transfer to
the no fault condition.
Each activation of the front panel reset pushbutton or the reset input causes a one-time reset input to the monitor. A
continuously activated front panel reset or reset input will not prevent the monitor from checking any fault conditions and/or
transferring the Output relay contacts to the fault condition. The front panel reset or reset input must be removed and
reapplied to activate a new reset input to the monitor. Activation of either reset will cause all of the front panel LEDs to turn
on for 300 milliseconds.
The only intended purpose of the reset input is to facilitate automated testing of the monitor.
2.4.4 Type 16 Only Mode
This feature if useful in cabinets where the user is retrofitting a TS 2 monitor into a TS 1 cabinet and wants to use the Type
16 mode, but the existing Connector A harness does not have a wire for Pin HH (Type Select). Activating this feature forces
the monitor to operate in the Type 16 mode regardless of the logic level on the Type Select input. While this feature is on,
the
TYPE 12
LED will show the Function Disabled indication (50 milliseconds on, once every two seconds).
2.4.5 COM Port
The monitor has a front panel mounted DB-9, RS-232 communications port that can be used with Reno A&E’s RaeComM
software to view / modify configuration settings, view current status and voltages, view logs, and download firmware
upgrades. The COM port supports the standard baud rates from 300 to 57600 with one or two stop bits and parity of odd,
even, or none. The factory default is 57600, no parity, and one stop bit. The most current version of the RaeComM software
can be found on the Reno A&E web site
www.renoae.com
under support / monitor support / software. Also see
Application Note AN-002 for an introduction to the RaeComM software. This application note can be found on the web site
under support / monitor support / application notes.
The monitor was designed to use a standard DB-9 extension cable (male to female, straight through) for connecting to a
laptop or computer. This port does not support handshaking signals. Both the COM port and the optional Ethernet port can
be used at the same time. See Section
3.4
for connector pin assignments.
2.4.6 Ethernet Port
The monitor has an optional high speed, 10BASE-T / 100BASE-TX Ethernet network jack that can be used for
communications with Reno A&E’s RaeComM software to view / modify configuration settings, view current status and
voltages, view logs, and download firmware upgrades.
To use this port an IP Address and port number must be set in the monitor. Contact your network administrator for addresses
valid for your network. The factory default is an IP Address of 0.0.0.0 (which is an unusable address) and port 10001 (this is
the recommend value).
In order to prevent the accidental writing of information to an unintended monitor, the Ethernet port is read-only on power
up. To make the Ethernet port read-write, press any pushbutton on the front of the monitor. This will unlock the monitor for
a period of 15 minutes.
