Eaton MP-3000 Instruction Leaflet page 42

IM02602002E
connected to one of the digital input channels. That channel must be
programmed for REM RST (remote reset) or RST DBL (reset disable).
5.12.6 Setting P12L6, Enable Programming with a Running
Motor (RUN PGM or STOP PGM)
If RUN PGM is selected, the motor may be started and/or run during
programming of the MP-3000 settings. If STOP PGM is selected, the
motor must be stopped in order to enter the PROGRAM mode, and
starting is blocked while in the PROGRAM mode.
NOTICE
TO TaKE fULL aDVaNTaGE Of ThE aRMED/DISaRMED CaPa-
BILITy Of ThE MP-3000 aS DESCRIBED IN P12L18 BELOW, BE
SURE TO SET P12L6 TO RUN PGM.
With RUN PGM, if the User reprograms the MP-3000 while the motor
runs, the relay continues to protect with the all the old settings. All set-
ting changes are stored in a scratch pad area and are not immediately
used. Finally, when the reprogramming is finished, the User exits the
PROGRAM mode by pushing the Program button again (see Section
4). Only at this moment does the MP-3000 recalculate its internal
values and put the new settings into effect. Note what happens when
it does so:
• The thermal-model accumulator bucket is dumped and
resets to 40°C (104°F).
• Any active run delay timers are reset and must start timing
again.
• All jogging functions are reset - time between starts, cold
starts, and starts per time limits are all cleared.
• The MP-3000 remembers that it was in the RUN state when
the program mode was exited, and continues that state. The
transition function will not reset, or trigger a reduced-voltage
starter to switch to reduced voltage.
5.12.7 Setting P12L7, Emergency Override Enable (EMRG EN or
EMRG DIS)
Select P12L7 if the emergency override button is enabled or disabled.
If enabled, an emergency override can be executed by pushing the
Emrg Override button behind the front panel security door. In any
case, an emergency override can be performed by a remote contact
connected to either of the discrete inputs DI1 or DI2 programmed as
EMG OVR, or via data communications from a PowerNet host. The
as-shipped setting is disabled.
Emergency Override allows a panic restart of a tripped motor with-
out completely disabling protection. When the override request is
received, the thermal-model accumulator bucket is drained to its initial
level of 40°C (104°F). Jogging limit counters and timing, including anti-
backspin timing, are reset. Cold starts are fully restored.
The motor protection is now in the state it would be in if the motor had
been standing for a long time prior to the moment of the override. This
allows an immediate restart of the motor. The override can also delay
an impending thermal trip of a running motor. The emergency override
action is counted in the history record, and noted with its time tag in the
logbook record.
Page 5-10
MP-3000
ThE EMERGENCy OVERRIDE fUNCTION CLEaRS aND RE-
STaRTS aLL PROTECTIVE fUNCTIONS Of ThE MP-3000. USING
ThIS fUNCTION CaN DaMaGE ThE MOTOR. USE IT ONLy fOR
TRUE EMERGENCIES, WhEN IT KNOWN WhaT CaUSED ThE
TRIP. OVERRIDE PERMITS ThE RISK Of MOTOR DaMaGE TO
aVOID aN EVEN MORE DaNGEROUS PROCESS SITUaTION
CaUSED By ThE TRIPPING Of ThE MOTOR.
5.12.8 Setting P12L8, Set Real-Time Clock Display (12-hOUR or
24-hOUR fORMaT)
P12L8 selects the time display to be the 12-hour format (with AM or
PM) or the 24-hour format (military time or international time).
5.12.9 Setting P12L9, Month (MONTh)
P12L9 sets the real-time clock month, 1 to 12.
5.12.10 Setting P12L10, Day (Day)
P12L10 sets the real-time clock day of the month. The MP-3000 tracks
leap years to the year 2100.
5.12.11 Setting P12L11, year (yEaR)
P12L11 sets the real-time clock year.
5.12.12 Setting P12L12 , hour (hOUR)
P12L12 sets the real-time clock hour (0 to 23). Use 13 to 23 for set-
ting, even if the 12-hour AM/PM mode was selected above for display.
5.12.13 Setting P12L13, Minute (MIN)
P12L13 sets the real-time clock minute. Since the minute does not
update on its own while the relay is in program mode, make this the
last setting to adjust before exiting.
NOTE: There is no setting for seconds. The clock seconds are set to
zero when the User exits the program mode. To synchronize
the seconds, set the minute value ahead, and exit (press the
Prog button) as the next minute begins.
5.12.14 Setting P12L14, Date Display format (M D y or D M y)
P12L14 selects a display of either MONTH DAY YEAR, or
DAY MONTH YEAR.
5.12.15 Setting P12L15, IMPaCC Communications Mode
(IQ II EN or IQ II DIS)
To configure the MP-3000 to communicate in a manner limited to
that of the preceding IQ-1000 II product, choose IQ II EN. This is the
factory default setting - it is needed for operation with older IMPACC
host systems. To take full advantage of MP-3000 capabilities with a
newer PowerNet host, choose IQ II DIS. Refer to Section 10, Data
Communications, for more details. This setting has no influence on
performance or protection behavior of the protective relay itself.
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