System information

44
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 (CONT)
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 PERSISTENCE 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
transformer 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
terminals 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.
Check ISM Status under the Main-
tenance Menu.
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 Main-
tenance 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 devi-
ated approximately 7% from nomi-
nal 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.
Check ISM Status under the Main-
tenance Menu.
Alm-412
ALM-412 ISM Fault —
Starter Module Reset
Manual Unit shuts down.
AUTO RESTART OPTION in
OPTIONS screen is disabled and
there was a temporary loss of 115 v
ISM control voltage supply. Check
ISM_HIST screen.
Check wiring leading to ISM termi-
nals J1-LL1 and J1-LL2.
Check control power circuit breaker,
control power transformer and con-
trol power circuit fuses.
Monitor chiller utility power for dis-
ruptions.
Improve ISM ground connection;
apply measures to reduce electrical
noise to ISM.
Consult power company.
Check ISM Status under the Main-
tenance Menu.