Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual page 41

MONITORED PARAMETER
Motor — Surge
Surge
Current Imbalance
Overload Trip
Excessive Amps
Acceleration Fault
Amps Not Sensed
Starts Limit Exceeded
Low Chilled Water Flow
Low Cond Water Flow
High Approach — Evaporator
Condenser
VFD — High VFD Speed
Failure to Stop
Rectifier — High Temperature
Overcurrent
Power Fault
Inverter — High Temperature
Power Fault
Inductor — Overtemperature Switch
DC Bus Voltage — High
Low
Ground Fault
Optional Limits — Spare Temperature
Guide Vane Position
Low Discharge Superheat
Humidity — Dew Prevention
Sensor Fault
Table 6 — Protective Limits and Control Settings (cont)
ALARM/ALERT
238 > 5 surge events within SURGE TIME PERIOD
and VFD SPEED > 90%
236 > 5 surge events within SURGE TIME PERIOD
and VFD SPEED < 90%
225 MOTOR CURRENT IMBALANCE > MOTOR
CURRENT % IMBALANCE
217 Any LOAD CURRENT PHASE > 108% for
Excessive Time Period
208 PERCENT LOAD CURRENT > 110% for 30 sec.
203 PERCENT LOAD CURRENT > 95% and
VFDSTART = TRUE for 5 to 40 sec
202 PERCENT LOAD CURRENT < 5% for 3 seconds
and VFD START=TRUE for 20 sec
100 More than 8 starts in 12 hours
229 CHILLED LIQUID FLOW = FALSE after CHILLED
WATER PUMP = ON & WATER FLOW VERIFY
TIME elapsed
230 COND WATER FLOW = FALSE after COND
WATER PUMP = ON & WATER FLOW VERIFY
TIME elapsed
162 EVAPORATOR APPROACH > EVAP APPROACH
ALERT and startup complete
163 CONDENSER APPROACH > COND APPROACH
ALERT and startup complete
245 ACTUAL VFD SPEED > VFD SPEED OUTPUT
+ 10%
204 PERCENT LOAD CURRENT >15% and
VFDSTART = NO for 20 sec
218 RECTIFIER TEMPERATURE limit exceeded
110 RECTIFIER TEMPERATURE > RECTIFIER TEMP
OVERRIDE –20 F (11.1 C)
241 Rectifier current limit exceeded
200 IGBT current limit exceeded or a fault was detected
in the rectifier
219 INVERTER TEMPERATURE limit exceeded
111 INVERTER TEMPERATURE > INVERTER TEMP
OVERRIDE –20 F (11.1 C)
286 Inverter current limit exceeded
201 IGBT current limit exceeded
256 Inductor temperature limit exceeded
205/166 DC BUS VOLTAGE Limit Exceeded
215 DC BUS VOLTAGE < 407 VDC at 400/480 V
Line Side Voltage
220 GROUND FAULT CURRENT > 7% of Drive Rated
Amps Sensed
158,159, SPARE TEMPERATURE > SPARE TEMP LIMIT
248,249
253 ACTUAL GUIDE VANE POS > 4% after 4 minutes
of closing
ACTUAL GUIDE VANE POSITION < .045 volts
after startup complete
ACTUAL GUIDE VANE POSITION > 3.15 volts
after startup complete
ACTUAL GUIDE VANE POSITION < –1% after
startup complete
ACTUAL GUIDE VANE POSITION > 103% after
startup complete
240 DISCHARGE SUPERHEAT < SUPERHEAT
REQUIRED –3° F (1.7° C) for 60 seconds
255 VFD COOLANT FLOW = 0% and VFD COLD
PLATE TEMPERATURE < Tdewpoint + 0.5 F
(0.3 C) or VFD COOLANT FLOW = 0% and there is
a Rectifier Overtemperature or Inverter Overtem-
perature Alarm
168 HUMIDITY SENSOR INPUT > 4.5 V or
HUMIDITY SENSOR INPUT < 0.5 V
LIMIT
Preset Alarm, Configure SURGE DELTA% AMPS
and SURGE TIME PERIOD in OPTIONS screen
Preset Alarm, Configure SURGE DELTA% AMPS
and SURGE TIME PERIOD in OPTIONS screen
Configure MOTOR CURRENT % IMBALANCE and
MOTOR CURRENT IMBAL TIME in VFD_CONF
screen
Preset Alarm, Configure MOTOR LOAD ACTIVE
DEMAND LIMIT in MAINSTAT screen
Preset Alarm
Preset Alarm, PERCENT LOAD CURRENT =
AVERAGE LOAD CURRENT/MOTOR RATED
LOAD AMPS
Preset Alarm, PERCENT LOAD CURRENT =
AVERAGE LOAD CURRENT/MOTOR RATED
LOAD AMPS
Preset Prestart Alert
Optional Alarm, Configure WATER FLOW VERIFY
TIME in SETUP1 screen
Optional Alarm, Configure WATER FLOW VERIFY
TIME in SETUP1 screen
Configure EVAP APPROACH ALERT in SETUP1
screen
Configure COND APPROACH ALERT in SETUP1
screen
Preset Alarm, Must be outside +10% threshold for
75 sec.
Preset Alarm, PERCENT LOAD CURRENT =
AVERAGE LOAD CURRENT/MOTOR RATED
LOAD AMPS
Preset Alarm, Configure RECTIFIER TEMP
OVERRIDE in SETUP1 screen
Prestart Alert, Configure RECTIFIER TEMP
OVERRIDE in SETUP1 screen
Preset Alarm
Preset Alarm
Preset Alarm, Configure INVERTER TEMP
OVERRIDE in SETUP1 screen
Prestart Alert, Configure INVERTER TEMP
OVERRIDE in SETUP1 screen
Preset Alarm
Preset Alarm
Preset Alarm, Temperature switch in reactor has
opened
Preset Alarm/Alert
Preset Alarm
Preset Alarm
Optional Alarm/Alert, Configure SPARE TEMP
ENABLE and SPARE TEMP LIMIT in SETUP1
screen
Preset Alarm
Preset Alarm
Preset Alarm
Preset Alarm
Preset Alarm
Preset Alarm, DISCHARGE SUPERHEAT = COMP
DISCHARGE TEMP – CONDENSER REFRIG
TEMP
Preset Alarm
Preset Alert
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