Eaton MP-4000, Instruction Bulletin For Installing, Operating, And Maintaining

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MP-4000 IB02602002E
Table 12.1 alarm Conditions.
Display Complete help Message Probable Cause Solution
GND FAULT GROUND FAULT ALARM
Insulation failure - ground
current leakage.
DANGER: Personnel hazard.
Stop and isolate the motor
as soon as possible to avoid
more dangerous or damaging
fault. Get expert evaluation of
motor insulation condition.
%I2T I2T ALARM
The thermal-model bucket
level has exceeded the alarm
setting (60% to 100% of trip
level).
• Determine if the motor is
seeing larger than expected
sustained loading.
• Check for an unbalance in
supply currents or voltages
causing negative sequence
heating.
• Check for an abnormal
system voltage level.
• Check for cooling air block-
age or abnormal ambient.
• Monitor the bucket level in
Monitor mode to be sure
level does not continue to
rise to trip level.
STEX A ALLOWED STARTS EXCEEDED,
WAIT IN MINUTES
All of the allowed count of
starts in the set time period
have been used.
In each case, the tempera-
ture is equal to or greater
than the alarm setting value.
Wait the number of minutes
shown on the display before
restarting.
Check the problem value
in the Monitor mode and
determine the cause.
Stator heat may be due to
overload, or to cooling air
flow blockage.
Bearing heat usually indi
-
cates impending failure or
lack of lubrication.
•
•
•
•
WD TEMP STATOR WINDING
TEMPERATURE ALARM
MB TEMP MOTOR BEARING TEMPERATURE
ALARM
LB TEMP LOAD BEARING TEMPERATURE
ALARM
AX TEMP AUXILIARY OVER TEMPERATURE
ALARM
PH UNBAL
JAM
UNDER L PHASE UNBALANCE ALARM
LOAD JAM ALARM
UNDER LOAD RUN ALARM
The electrical value has
crossed the alarm threshold.
For unbalance, check source
voltage balance, single-
phase external loads, and
uncleared unbalanced faults.
Jam and underload - look for
mechanical failures in driven
process equipment.
RTDF 3W
RTDF FIB
URTDF FAILED RTD COMMUNICATION
-FIB- FIBER CHAN
-3W- THREE WIRE CHAN
FAILED URTD COMMUNICATION
(log display only)
RTD temperature information
reporting through designated
medium has been lost.
Check the wire or fiber
channel medium for damage
or disconnection.
Check the URTD module for
power or malfunction.
•
•
RTF XX RTD CHANNEL FAILED ALARM
(xx = channel that failed)
A particular RTD or input to
the URTD has failed.
Troubleshoot the designated
RTD.
alarm Flags
PH UNB V VOLTAGE PHASE UNBALANCE
ALARM
A voltage phase unbalance
occurred.
OVR VOLT OVERVOLTAGE ALARM An over voltage condition
occurred.