ALARM 16, Short circuit
There is short-circuiting in the motor or motor wiring.
Remove power to the frequency converter and repair the
short circuit.
WARNING/ALARM 17, Control word timeout
There is no communication to the frequency converter.
The warning will only be active when
8-04 Control Word
Timeout Function
is NOT set to OFF.
If
8-04 Control Word Timeout Function
is set to
Stop
and
Trip
, a warning appears and the frequency converter ramps
down until it stops then displays an alarm.
Troubleshooting:
Check connections on the serial communication
cable.
Increase
8-03 Control Word Timeout Time
Check the operation of the communication
equipment.
Verify a proper installation based on EMC
requirements.
WARNING 23, Internal fan fault
The fan warning function is an extra protective function
that checks if the fan is running/mounted. The fan warning
can be disabled in
14-53 Fan Monitor
([0] Disabled).
For the D, E, and F Frame filters, the regulated voltage to
the fans is monitored.
Troubleshooting:
Check for proper fan operation.
Cycle power to the frequency converter and
check that the fan operates briefly at start up.
Check the sensors on the heatsink and control
card.
WARNING 24, External fan fault
The fan warning function is an extra protective function
that checks if the fan is running/mounted. The fan warning
can be disabled in
14-53 Fan Monitor
([0] Disabled).
Troubleshooting:
Check for proper fan operation.
Cycle power to the frequency converter and
check that the fan operates briefly at start up.
Check the sensors on the heatsink and control
card.
ALARM 29, Heatsink temp
The maximum temperature of the heatsink has been
exceeded. The temperature fault will not reset until the
temperature falls below a defined heatsink temperature.
The trip and reset points are different based on the
frequency converter power size.
Troubleshooting:
Check for the following conditions.
Ambient temperature too high.
Motor cable too long.
Incorrect airflow clearance above and below the
frequency converter
Blocked airflow around the frequency converter.
Damaged heatsink fan.
Dirty heatsink.
ALARM 33, Inrush fault
Too many power-ups have occurred within a short time
period. Let the unit cool to operating temperature.
WARNING/ALARM 34, communication fault
The fieldbus on the communication option card is not
working.
WARNING/ALARM 35, Out of frequency range
This warning is active if the output frequency has reached
the high limit (set in
4-53 Warning Speed High
) or low limit
(set in
4-52 Warning Speed Low
). In
Process Control, Closed
Loop
(
1-00 Configuration Mode
) this warning is displayed.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
the table below is displayed.
Troubleshooting
Cycle power
Check that the option is properly installed
Check for loose or missing wiring
It may be necessary to contact your Danfoss supplier or
service department. Note the code number for further
troubleshooting directions.
No.
Text
0
Serial port cannot be initialised. Contact
yourDanfoss supplier or DanfossService
Department.
256-258
Power EEPROM data is defect or too old
512-519
Internal fault. Contact yourDanfoss supplier or
Danfoss Service Department.
783
Parameter value outside of min/max limits
1024-1284 Internal fault. Contact your Danfoss supplier or the
Danfoss Service Department.
1299
Option SW in slot A is too old
1300
Option SW in slot B is too old
1302
Option SW in slot C1 is too old
1315
Option SW in slot A is not supported (not allowed)
1316
Option SW in slot B is not supported (not allowed)
1318
Option SW in slot C1 is not supported (not
allowed)
1379-2819 Internal fault. Contact yourDanfoss supplier or
DanfossService Department.
2820
LCP stack overflow
2821
Serial port overflow
2822
USB port overflow
3072-5122 Parameter value is outside its limits
5123
Option in slot A: Hardware incompatible with
control board hardware
Troubleshooting
VLT Active Filter AAF 00x
MG.90.V2.02 - VLT® is a registered Danfoss trademark
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