41
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-402
ALM-402 ISM Fault —
High Line Voltage
Manual (Swift Restart eligible) Unit shuts down.
High LINE VOLTAGE for an excessive
amount of time. Check LINE VOLTAGE
in ISM_HIST screen.
Check MOTOR RATED LINE VOLT-
AGE and OVERVOLTAGE THRESH-
OLD in ISM_CONF screen.
Check phase to phase and phase to
ground distribution bus voltage.
Consult power company.
Medium voltage applications only:
Check voltage potential transformers
and VOLT TRANSFORMER RATIO in
ISM_CONF screen.
Check wiring to ISM J3-VL1, J3-VL2
and J3-VL3.
Alm-403
ALM-403 ISM Fault — Low
Line Voltage
Manual (Swift Restart eligible) Unit shuts down.
Low LINE VOLTAGE for an excessive
amount of time. Check LINE VOLTAGE
in ISM_HIST screen.
Check MOTOR RATED LINE VOLT-
AGE and UNDERVOLTAGE THRESH-
OLD in ISM_CONF screen.
Check phase to phase and phase to
ground distribution bus voltage.
Check connections to ISM terminal
block J3.
Consult power company.
Medium voltage applications only:
Check voltage potential transformers
and VOLT TRANSFORMER RATIO in
ISM_CONF screen. Check wiring to ISM
J3-VL1, J3-VL2 and J3-VL3.
Alm-404
ALM-404 ISM Fault — Line
Current Imbalance
Manual (Swift Restart eligible) Unit shuts down.
Current imbalance > CURRENT %
IMBALANCE for greater than the CUR-
RENT IMBALANCE TIME. Check set-
tings in ISM_CONF screen.
Check ISM_HIST screen.
Check current transformer wiring lead-
ing to ISM terminal block J4.
Verify phase to phase and phase to
ground line voltage.
Check wiring and hardware between
building power supply and motor.
Current imbalance may improve if power
or motor leads are rotated in the same
phase sequence.
Alm-405
ALM-405 ISM Fault — Line
Voltage Imbalance
Manual Unit shuts down.
Voltage Imbalance > VOLTAGE %
IMBALANCE for greater than the VOLT-
AGE IMBALANCE TIME.
Check settings in ISM_CONF screen.
Check ISM_HIST screen.
Check line voltage wiring leading to ISM
terminal block J3.
Verify phase to phase and phase to
ground line voltage.
Check wiring and hardware between
building power supply and motor.
Alm-406
ALM-406 ISM Fault —
Overload Trip
Manual Unit shuts down.
Any phase current > 108% RLA for
excessive time period. Alarm can result
from significant load side current imbal-
ance when running at full load.
Check ISM_HIST screen.
Check for consistent entering condenser
water temperature and water flow rates.
Check MOTOR RATED LOAD AMPS
and STARTER LRA RATING in
ISM_CONF screen.
VFD applications only: Any phase cur-
rent > 120% for excessive time period.
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