222
013
NOTE 1 Overcurrent
The inverter peak current limit
(approximately 200% of the rated current)
is exceeded. The warning lasts
approximately 1.5 s, then the frequency
converter trips and issues an alarm. Shock
loading or quick acceleration with high-
inertia loads can cause this fault. If the
acceleration during rampup is quick, the
fault can also appear after kinetic back-up.
If extended mechanical brake control is
selected, a trip can be reset externally.
• Remove the power and check if the motor
shaft can be turned.
• Check that the motor size matches the fre-
quency converter.
• Check that the motor data is correct in param-
eters 1–20 to 1–25.
014
NOTE 1 Ground Fault
There is current from the output phase to
ground, either in the cable between the
frequency converter and the motor or in the
motor itself. This fault is detected during
motor operation.
• Remove power to the frequency converter and
repair the ground fault.
• Check for ground faults in the motor by mea-
suring the resistance to ground of the motor
cables and the motor with a megohmmeter.
015
Alarm
Hardware
Mismatch
A fitted option is not operational with the
present control board hardware or software
Record the value of the following parameters and
contact Danfoss:
• 15-40 FC Type
• 15-41 Power Section
• 15-42 Voltage
• 15-43 Software Version
• 15-45 Actual Typecode String
• 15-49 SW ID Control Card
• 15-50 SW ID Power Card
• 15-60 Option Mounted
• 15-61 Option SW Version (for each option
slot)
016
Alarm Short Circuit
There is short-circuiting in the motor or
motor wiring
• Remove the power to the frequency converter
and repair the short circuit
017
NOTE 1
Control Word
Timeout (Serial
Communication
Failure)
There is no communication to the
frequency converter. The warning is only
active when 8-04 Control Word Timeout
Function is NOT set to [0] Off. If 8-04
Control Word Timeout Function is set to [5]
Stop and Trip, a warning appears and the
frequency converter ramps down until it
stops, and then it displays an alarm
Check the connections on the serial
communications cables including the shields and
termination resistors.
8-04 Control
Timeout
Function
023
Warning
Internal Fan
Fault
Monitors operation of the internal cooling
fan
Check for proper fan operation, cycle power to
VFD and confirm that fan operates at startup
029
NOTE 1
Heat Sink
Overtemperature
The maximum temperature of the heat sink
has been exceeded. The temperature fault
does not reset until the temperature drops
below a defined heat sink temperature. The
trip and reset points are different based on
the frequency converter power size
• Ambient temperature too high.
• Motor cables too long.
• Incorrect airflow clearance above and below
the frequency converter.
• Blocked airflow around the frequency convert-
er.
• Damaged heat sink fan.
• Dirty heat sink.
030
NOTE 1
Motor Phase U
Missing
Motor phase U between the frequency
converter and the motor is missing
Remove the power from the frequency converter
and check motor phase U
4-58 Missing
Motor Phase
Function
031
NOTE 1
Motor Phase V
Missing
Motor phase V between the frequency
converter and the motor is missing
Remove the power from the frequency converter
and check motor phase V
4-58 Missing
Motor Phase
Function
032
NOTE 1
Motor Phase W
Missing
Motor phase W between the frequency
converter and the motor is missing
Remove the power from the frequency converter
and check motor phase W
4-58 Missing
Motor Phase
Function
034
NOTE 1
Fieldbus
Communication
Fault
The fieldbus on the communication option
card is not working
Check the communication wiring connections,
including the shield. Check the termination
resistors.
036
NOTE 1 Mains Failure
This warning/alarm is only active if the
supply voltage to the frequency converter
is lost and parameter 14-10 Mains Failure
is not set to option [0] No Function
Check the fuses to the frequency converter, mains
supply to the unit and the phase imbalance (±3%)
039
Alarm Heat Sink Sensor
No feedback from the heat sink
temperature sensor
The signal from the IGBT thermal sensor is not
available on the power card. The problem could
be on the power card, on the gatedrive card, or the
ribbon cable between the power card and
gatedrive card
045
Alarm Ground Fault Ground fault detected on motor start
• Remove power to the frequency converter and
repair the ground fault.
• Check for ground faults in the motor by mea-
suring the resistance to ground of the motor
cables and the motor with a megohmmeter.
046
Alarm
Power Card
Supply
The supply on the power card is out of
range
Contact Carrier Service
047
NOTE 1 24V Supply Low
The supply on the power card is out of
range
Contact Carrier Service
Table 171 — Alarms List (cont)
CODE
WARNING/
ALARM
DESCRIPTION POSSIBLE CAUSES
DOES MACHINE
SHUT DOWN
ACTION TO
BE TAKEN
REFERENCE
PARAMETER
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