Trip/Alarm Mode; Table 3-4: Trip/Alarm Messages And Fault Diagnosis - GE 269Plus Instruction Manual

TRIP/ALARM MODE

Table 3–4: TRIP/ALARM MESSAGES AND FAULT DIAGNOSIS
PRI INFORM ATION LIN E
1
SELF TEST ALARM
A/D H/W FAIL
SELF TEST ALARM
RTD H/W FAIL. RTDs OFF
SELF TEST ALARM
3
RAM FAIL
SELF TEST ALARM FACTORY
SETPOINTS LOADED
2
PHASE S/C TRIP
3
RAPID TRIP
4
SINGLE PHASE TRIP
5
GROUND FAULT TRIP
6
OVERLOAD TRIP
LOCKOUT TIME = XXX MIN.
7
START INHIBIT
LOCKOUT TIME = XXX MIN.
8
STARTS/HOUR
LOCKOUT TIME = XXX MIN.
9
TIME BETWEEN STARTS
LOCKOUT TIME = XXX MIN
10
BACKSPIN TIMER
LOCKOUT TIME = XXX MIN
11
UNBALANCE TRIP
• • • • Available only if a GE Power Management meter (MPM) is installed and on-line (see Setpoints page 7, line 2)
3-
44
Courtesy of NationalSwitchgear.com
EXPLA NATION
Problem in A/D circuit detected by
internal self-test. Service required.
Problem in RTD circuit detected by
internal self-test. Service required.
Number of stator RTDs is set to 0,
and all RTD setpoints are set to
Problem in RAM detected by internal
self-test. Service required.
Problem in NOVRAM detected by
internal self-test. Service required.
Short Circuit Trip Level exceeded for
a time greater than the Short Circuit
Time Delay.
Rapid trip / Mech. Jam Trip Level
exceeded for a time greater than the
Rapid Trip Time Delay.
Unbalance of over 30% present for a
time greater than 4 seconds.
Ground Fault Trip Level exceeded
for a time greater than the Ground
Fault Trip Time Delay.
Motor thermal capacity exceeded.
Motor lock-out time is also shown.
Insufficient thermal capacity
available for motor to start (i.e. less
than Learned Start Capacity)
Total number of motor starts over the
past hour greater than Number of
Starts per Hour setpoint.
Time elapsed since the last start has
not exceeded Time Between Starts
setpoint.
Time elapsed since motor has
stopped has not exceeded the
Backspin Timer setpoint
Unbalance Trip Level exceeded for a
time greater than the Unbalance Trip
Time Delay (all phases > 0.1 × FLC).
269Plus Motor Management Relay
3 SETUP AND USE
SU GG ESTION S
Return relay for service.
Return relay for service.
.
Return relay for service.
Return relay for service.
Check for motor winding
shorts.
Check system for jams /
excessive load.
Check continuity of
incoming three phase
supply.
Check for motor winding to
case or ground shorts.
Check motor for moisture
or conductive particles.
Excessive load with motor
running or locked rotor on
start.
Wait for motor to cool.
Wait for motor to cool.
Reduce number of starts
during normal motor
operation.
Wait until Inhibit expires.
Wait until inhibit expires.
Check incoming supply
phases for unbalance;
Check for motor winding
shorts; Increase Trip Level
if required.
GE Power Management
MANUAL
SECTION
3.25
3.16
3.15
3.11
3.12
3.20
3.22
3.10, 3.4a
3.4a
3.11