Eaton MP-3000 Instruction Leaflet page 85

Display
GND FAULT GROUND FAULT ALARM
%I2T I2T ALARM
STEX A ALLOWED STARTS EXCEEDED,
WAIT IN MINUTES
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 PHASE UNBALANCE ALARM
JAM LOAD JAM ALARM
UNDER L UNDER LOAD RUN ALARM
RTDF 3W FAILED RTD COMMUNICATION
RTDF FIB -FIB- FIBER CHAN
URTDF -3W- THREE WIRE CHAN
FAILED URTD COMMUNICATION
(log display only)
RTF XX RTD CHANNEL FAILED ALARM
(xx = channel that failed)
Table 12.1 alarm Conditions.
Complete help Message
MP-3000
Probable Cause
Insulation failure—ground
current leakage
The thermal-model bucket
level has exceeded the alarm
setting (60% to 100% of trip
level).
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.
The electrical value has
crossed the alarm threshold.
RTD temperature information
reporting through designated
medium has been lost.
A particular RTD or input to
the URTD has failed.
www.eaton.com
IM02602002E
Solution
DANGER: Personnel hazard.
Stop and isolate the motor
as soon as possible to avoid
more dangerous or damaging
fault. Get expert evaluation of
the motor insulation condition.
• 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.
Wait the number of minutes
shown on the display before
restarting.
Check the problem value in
the Monitor mode and deter-
mine the cause. Stator heat
may be due to overload, or
to cooling air flow blockage.
Bearing heat usually indicates
impending failure or lack of
lubrication.
• For unbalance, check
source voltage balance,
single-phase external loads,
and uncleared unbalanced
faults.
• For jam and underload, look
for mechanical failures in
driven process equipment.
• Check the wire or fiber
channel medium for dam-
age or disconnection.
• Check the URTD module for
power or malfunction.
Troubleshoot the designated
RTD.
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