112
Table 16 — ICVC Primary and Secondary Messages and
Custom Alarm/Alert Messages with Troubleshooting Guides (cont)
K. ISM ALARMS (cont)
*[LIMIT] is shown on the ICVC as the temperature, pressure, voltage, etc., set point predefined or selected by the operator as an override, alert, or alarm condition.
[VALUE] is the actual pressure, temperature, voltage, etc., at which the control tripped. "Exceeded Limit" in Alarm or Alert messages may mean the value is above or
below a threshold
.
ICVC
FAULT
STATE
PRIMARY MESSAGE
SECONDARY MESSAGE
PRIMARY CAUSE
ADDITIONAL
CAUSE/REMEDY
209
PROTECTIVE LIMIT
LINE PHASE LOSS
209->Line Phase Loss; Check ISM Fault
History to Identify Phase
Any LINE VOLTAGE < 50% MOTOR RATED
LINE VOLTAGE or there is an excessive differ-
ence between the smallest LINE CURRENT and
the largest LINE CURRENT. 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 voltage.
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 transformers and
VOLT TRANSFORMER RATIO in ISM_CONF
screen.
210
PROTECTIVE LIMIT
LINE VOLTAGE DROPOUT
210->Single Cycle Line Voltage Dropout
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. Dis-
able Single Cycle Dropout in ISM_CONF screen.
211
PROTECTIVE LIMIT
HIGH LINE VOLTAGE
211->High Average Line Voltage
[VALUE]
High LINE VOLTAGE for an excessive 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 transformers and VOLT
TRANSFORMER RATIO in ISM_CONF screen.
Check wiring to ISM J3-VL1, J3-VL2 and J3-VL3.
212
PROTECTIVE LIMIT
LOW LINE VOLTAGE
212->Low Average Line Voltage
[VALUE]
Low LINE VOLTAGE for an excessive amount of
time. Check LINE VOLTAGE in ISM_HIST screen.
Check MOTOR RATED LINE VOLTAGE and
UNDERVOLTAGE THRESHOLD in ISM_CONF
screen. Check phase to phase and phase to
ground distribution bus voltage. Check connec-
tions to ISM terminal block J3. Consult power com-
pany. Medium voltage applications only: Check
voltage potential transformers and VOLT TRANS-
FORMER RATIO in ISM_CONF screen. Check
wiring to ISM J3-VL1, J3-VL2 and J3-VL3.
213
PROTECTIVE LIMIT
STARTER MODULE RESET
213->Starter Module Power-On Reset
When Running
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 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.
214
PROTECTIVE LIMIT
POWER LOSS
214->Control Power - Loss When Run-
ning
AUTO RESTART OPTION in OPTIONS screen is
disabled and there was a temporary loss of 24
VAC power to the ICVC. Check 115 VAC control
power transformer. Check 24 VAC T2 transformer
and wiring leading to ICVC terminals J1-4 and J1-
5 . Check CB1 circuit breaker in the control panel.
Check phase to phase and phase to ground distri-
bution bus voltage. Monitor chiller utility power for
disruptions. Consult power company.
215
PROTECTIVE LIMIT
LINE CURRENT IMBALANCE
215->Line Current Imbalance;Check
ISM Fault History to Identify Phase
Current imbalance > CURRENT % IMBALANCE
for greater than the CURRENT IMBALANCE
TIME. Check settings in ISM_CONF screen.
Check ISM_HIST screen. Check current trans-
former wiring leading 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 imbal-
ance may improve if power or motor leads are
rotated in the same phase sequence.
216
PROTECTIVE LIMIT
LINE VOLTAGE IMBALANCE
216->Line Voltage Imbalance; Check
ISM Fault History to Identify Phase.
Voltage Imbalance > VOLTAGE % IMBALANCE
for greater than the VOLTAGE IMBALANCE
TIME. Check settings in ISM_CONF screen.
Check ISM_HIST screen. Check line voltage wir-
ing leading to ISM terminal block J3. Verify phase
to phase and phase to ground line voltage. Check
wiring and hardware between building power sup-
ply and motor.
Summary of Contents for AquaEdge 19XR series
Page 69: ...69 Fig 33 19XR Leak Test Procedures a19 1625 ...
Page 154: ...154 Fig 64 Benshaw Inc Wye Delta Unit Mounted Starter Wiring Schematic Low Voltage a19 1873 ...
Page 161: ...161 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v ...
Page 162: ...162 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v cont ...
Page 186: ...186 APPENDIX B LEAD LAG WIRING 19XR Lead Lag Schematic Series Cooler Flow a19 1655 ...
Page 187: ...187 APPENDIX B LEAD LAG WIRING cont 19XR Lead Lag Schematic Parallel Cooler Flow a19 1717 ...