42
Table 17 — PIC 5 Alarm Codes (cont)
NOTE: Some alarm codes (identified in the Reset Type column) are
eligible for Swift Restart when the Auto Restart option is enabled.
The Swift Restart algorithm allows for quicker restart and decreases
the normal start-up delays and verification times.
ALARM
CODE
(ALARMRST)
ALARM TEXT
DESCRIPTION
RESET TYPE
ACTION TAKEN
BY CONTROL
POSSIBLE CAUSE
INTEGRATED STARTER MODULE ALARMS (CONT)
Alm-407
ALM-407 ISM Fault —
Motor Locked Rotor Trip
Manual Unit shuts down.
Any LINE CURRENT > MOTOR
LOCKED ROTOR TRIP for excessive
time while running after the LOCKED
ROTOR START DELAY has expired.
Check MOTOR LOCKED ROTOR TRIP
and MOTOR CURRENT CT RATIO in
ISM_CONF screen.
Check motor nameplate data. Check
ISM_HIST screen.
Check motor wiring and motor winding
resistance.
Temporarily enable SINGLE CYCLE DROP
OUT to capture power disturbances.
Alm-408
ALM-408 ISM Fault —
Starter Lock Rotor Trip
Manual Unit shuts down.
Any LINE CURRENT > MOTOR
LOCKED ROTOR TRIP for excessive
time while running after the LOCKED
ROTOR START DELAY has expired.
Check MOTOR LOCKED ROTOR TRIP
and MOTOR CURRENT CT RATIO in
ISM_CONF screen.
Check motor nameplate data.
Check ISM_HIST screen.
Check motor wiring and motor winding
resistance.
Temporarily enable SINGLE CYCLE DROP
OUT to capture power disturbances.
Alm-409
ALM-409 ISM Fault —
Ground Fault
Manual Unit shuts down.
Any GROUND FAULT current >
GROUND FAULT CURRENT threshold
for a duration > GROUND FAULT PER-
SISTENCE after the GROUND FAULT
START DELAY has expired. Check
these settings and GROUND FAULT CT
RATIO in ISM_CONF screen.
Check ISM_HIST screen.
Confirm that ground fault current trans-
former orientation is correct, and that
the correct motor leads have been
routed through the ground fault current
transformers in the right direction.
Check for condensation on motor termi-
nals or inside motor leads.
Check motor power leads for phase to
phase or phase to ground shorts.
Disconnect motor from starter and
merger motor windings to ground and
phase to phase. Call Carrier Service.
Alm-410
ALM-410 ISM Fault —
Phase Reversal Trip
Manual Unit shuts down.
The ISM has detected that the input
power is phased BAC instead of ABC.
Confirm that the phase sequence wired
to ISM terminal block J3 is consistent
with the power wiring to the starter.
Swap two power leads at the starter.
Check ISM Status under the Mainte-
nance Menu.
Alm-411
ALM-411 ISM Fault — Line
Frequency Trip
Manual Unit shuts down.
LINE FREQUENCY FAULTING in
ISM_CONF screen is enabled and the
LINE FREQUENCY has deviated
approximately 7% from nominal value.
Check ISM_HIST screen.
Check FREQUENCY = 60 HZ? in
ISM_CONF screen.
Check line frequency.
If operating from a generator, check
generator size and speed.
Alm-412
ALM-412 ISM Fault —
Starter Module Reset
Manual (Swift Restart eligible) Unit shuts down.
AUTO RESTART OPTION in OPTIONS
screen is disabled and there was a tem-
porary loss of 115 v ISM control voltage
supply. Check ISM_HIST screen.
Check wiring leading to ISM terminals
J1-LL1 and J1-LL2.
Check control power circuit breaker,
control power transformer and control
power circuit fuses.
Monitor chiller utility power for disruptions.
Improve ISM ground connection; apply
measures to reduce electrical noise to ISM.
Consult power company.
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