Carrier SmartVu control - Page 116

SRDC-UG-2-14-000
REVISION
DATE
PAGE
19 Series Carrier®
SmartVu
TM
–
Controls IOM
2.3
Dec 4, 2020
116 OF 168
116
Check VFD refrigerant cooling solenoid
and refrigerant strainer.
Check for proper VFD cooling fan
operation and blockage.
Alm-445
ALM-445 VFD Fault -
Motor Current
Imbalance
As above
As above
Check Motor Current Imbalance% in
CFGUMVFD screen.
Alm-446
ALM-446 VFD Fault -
Line Voltage Imbalance
As above
As above
Check phase-to-phase and phase-to-
ground distribution bus voltage. Increase
Line Voltage Imbalance% in CFGUMVFD
screen.
Alm-447
ALM-447 VFD Fault -
Frequency Fault
As above
As above
Check Power Supply
If operating from a generator, check
generator size and speed.
Check utility power supply.
Alm-448
ALM-448 VFD Fault -
VFD Comm Fail
As above
As above
Check VFD communication wiring and
connectors.
Check status lights on DPI
Communications Interface Board.
Call Carrier Service.
Alm-449
ALM-449 VFD Fault -
VFD Fault
As above
As above
Check fault code and possible cause in
corresponding type of VFD user manuals
Call Carrier Service
Alm-450
ALM-450 VFD Fault -
VFD Start Inhibit
As above
As above
The VFD Start Inhibit is derived from the
Alarm bit being set in the VFD. The
conditions causing the alarm must be
corrected in the VFD to enable subsequent
starts and operation
Alm-451
ALM-451 VFD Fault -
VFD Checksum Error
As above
As above
Press Reset to Restore Configuration.
Actual VFD checksum does not match
calculated value.
Alm-452
ALM-452 VFD Fault -
Inductor Overtemp
Switch
As above
As above
Check Temp Switch and Cooling Fans.
Check for cooling fan air flow obstructions
Alm-453
ALM-453 VFD Fault -
Incompatibility Fault
As above
As above
Load compatible version files into drive
Alm-454
VFD Fault - Main
Power Failure
As above
As above
Check the main power to VFD
Alm-500
VFD Fault - Brake
Check
As above
As above
Refer to Danfoss VFD trouble shooting
manual
Alm-501
VFD Fault - Power
Card Over
Temperature
As above
As above
As above
Alm-502
VFD Fault - Earth Fault
As above
As above
As above
Alm-503
VFD Fault - Ctrl Card
Over Temperature
As above
As above
As above
Alm-504
VFD Fault - Control
Word Timeout
As above
As above
As above
Alm-505
VFD Fault - Over
Current
As above
As above
As above
Alm-506
VFD Fault - Torque
Limit
As above
As above
As above
Alm-507
VFD Fault - Motor
Thermistor Over Temp
As above
As above
As above
Alm-508
VFD Fault - Motor Etr
Over Temperature
As above
As above
As above
Alm-509
VFD Fault - Inverter
Overload
As above
As above
As above
Alm-510
VFD Fault - DC Link
Under Voltage
As above
As above
As above
Alm-511
VFD Fault - DC Link
Over Voltage
As above
As above
As above