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I.L. 17562
Page 117
PR 0.3 Effective 8/99
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
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
setpoint (60 to 100%
of trip level).
•
Determine if the motor
is seeing larger than
expected sustained
loading.
•
Check for unbalance
in supply currents or
voltages causing
negative-sequence
heating.
•
Check for abnormal
system voltage level.
•
Check for cooling air
blockage 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.
Wait the number of
minutes shown on the
display before restarting.
WD TEMP
MB TEMP
LB TEMP
AX TEMP
STATOR WINDING
TEMPERATURE ALARM
MOTOR BEARING
TEMPERATURE ALARM
LOAD BEARING
TEMPERATURE ALARM
AUXILIARY OVER
TEMPERATURE ALARM
In each case, the
temperature is equal
to or greater than the
alarm setpoint value.
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
indicates impending
failure or lack of
lubrication.
PH UNBAL
JAM
PHASE UNBALANCE
ALARM
LOAD JAM ALARM
The electrical value
has crossed the alarm
threshold.
For unbalance, check
source voltage balance,
single-phase external
loads, and uncleared
unbalanced faults.
Содержание 66D2032G01
Страница 18: ...Page 18 I L 17562 PR 0 3 Effective 8 99 Figure 4 1 MP 3000 Pushbuttons...
Страница 19: ...I L 17562 Page 19 PR 0 3 Effective 8 99 Figure 4 2 MP 3000 LED Indicators...
Страница 72: ...Page 72 I L 17562 PR 0 3 Effective 8 99 Figure 6 1 Panel Cutout Dimensions...
Страница 73: ...I L 17562 Page 73 PR 0 3 Effective 8 99 Figure 6 2 Faceplate Dimensions...
Страница 74: ...Page 74 I L 17562 PR 0 3 Effective 8 99 Figure 6 3 MP 3000 Case Depth Dimensions...
Страница 75: ...I L 17562 Page 75 PR 0 3 Effective 8 99 Figure 6 4 Universal RTD Module Mounting Dimensions...
Страница 76: ...Page 76 I L 17562 PR 0 3 Effective 8 99 Figure 6 5 Rear Panel Terminals...
Страница 77: ...I L 17562 Page 77 PR 0 3 Effective 8 99 Figure 6 6 Typical Ct Circuits and Motor Control Wiring...
Страница 78: ...Page 78 I L 17562 PR 0 3 Effective 8 99 Figure 6 7 Typical ac Supply and URTD Wiring...
Страница 79: ...I L 17562 Page 79 PR 0 3 Effective 8 99 Figure 6 8 Alternatives for Discrete Input Wiring...
Страница 80: ...Page 80 I L 17562 PR 0 3 Effective 8 99 Figure 6 9 RTD Wiring to URTD Module...
Страница 88: ...Page 88 I L 17562 PR 0 3 Effective 8 99 Figure 8 1 System Overview Figure 8 2 Torques from Sequence Currents...
Страница 100: ...Page 100 I L 17562 PR 0 3 Effective 8 99 Figure 9 1 Rotor Temperature Tracking...
Страница 101: ...I L 17562 Page 101 PR 0 3 Effective 8 99 Figure 9 2 Motor Protection Curve...
Страница 102: ...Page 102 I L 17562 PR 0 3 Effective 8 99 Figure 9 3 Underload Jam Protection Curve...
Страница 103: ...I L 17562 Page 103 PR 0 3 Effective 8 99 Figure 9 4 Motor Protection Curve Example without RTDs...
Страница 104: ...Page 104 I L 17562 PR 0 3 Effective 8 99 Figure 9 5 Motor Protection Curve Example with RTDs...
Страница 105: ...I L 17562 Page 105 PR 0 3 Effective 8 99 Figure 9 6 Motor Start and Run Cycles...
Страница 109: ...I L 17562 Page 109 PR 0 3 Effective 8 99 P5L8 40 Incomplete Sequence time 1 60s OFF 1 240s...