System information

41
Table 15 — PIC 5 Alarm Codes (cont)
ALARM
CODE
(ALARMRST)
ALARM TEXT
DESCRIPTION
RESET TYPE
ACTION TAKEN BY
CONTROL
POSSIBLE CAUSE
INTEGRATED STARTER MODULE ALARMS
Alm-400
ALM-400 ISM Fault — Line
Voltage Dropout
Manual Unit shuts down.
Temporary loss of voltage. SINGLE
CYCLE DROPOUT in the
ISM_CONF screen is Enabled and
two LINE VOLTAGES < 50%
MOTOR RATED LINE VOLTAGE.
Check ISM_HIST screen.
Disable Single Cycle Dropout in
VFD_CONF screen.
Check ISM Status under the Main-
tenance Menu.
Alm-401
ALM-401 ISM Fault — Line
Phase Loss
Manual Unit shuts down.
Any LINE VOLTAGE < 50%
MOTOR RATED LINE VOLTAGE,
or there is an excessive difference
between the smallest LINE CUR-
RENT and the largest LINE CUR-
RENT.
Check the ISM_HIST screen.
Check MOTOR RATED LINE
VOLTAGE in ISM_CONF screen.
Check phase to phase and phase to
ground power distribution bus volt-
age.
Check current transformer wiring
leading to ISM terminal block J4
and line voltage wiring leading to
ISM terminal block J3.
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.
Consult power company.
Medium voltage applications only:
Check voltage potential transform-
ers and VOLT TRANSFORMER
RATIO in ISM_CONF screen.
Check ISM Status under the Main-
tenance Menu.
Alm-402
ALM-402 ISM Fault —
High Line Voltage
Manual Unit shuts down.
High LINE VOLTAGE for an exces-
sive amount of time. Check LINE
VOLTAGE in ISM_HIST screen.
Check MOTOR RATED LINE
VOLTAGE and OVERVOLTAGE
THRESHOLD 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 transform-
ers and VOLT TRANSFORMER
RATIO in ISM_CONF screen.
Check wiring to ISM J3-VL1, J3-
VL2 and J3-VL3.
Check ISM Status under the Main-
tenance Menu.