ALARM 29, Heatsink temp
The maximum temperature of the heatsink has been
exceeded. The temperature fault resets when the
temperature falls below a defined heatsink temperature.
The trip and reset points are different based on the
adjustable frequency drive power size.
Troubleshooting
Check for the following conditions.
Ambient temperature too high.
Motor cables too long.
Incorrect airflow clearance above and below the
adjustable frequency drive
Blocked airflow around the adjustable frequency
drive.
Damaged heatsink fan.
Dirty heatsink.
For the D, E, and F enclosures, this alarm is based on the
temperature measured by the heatsink sensor mounted
inside the IGBT modules. For the F enclosures, the thermal
sensor in the rectifier module can also cause this alarm.
Troubleshooting
Check fan resistance.
Check soft charge fuses.
IGBT thermal sensor.
ALARM 30, Motor phase U missing
Motor phase U between the adjustable frequency drive
and the motor is missing.
Troubleshooting
•
Remove the power from the adjustable frequency
drive and check motor phase U.
ALARM 31, Motor phase V missing
Motor phase V between the adjustable frequency drive
and the motor is missing.
Troubleshooting
•
Remove the power from the adjustable frequency
drive and check motor phase V.
ALARM 32, Motor phase W missing
Motor phase W between the adjustable frequency drive
and the motor is missing.
Troubleshooting
•
Remove the power from the adjustable frequency
drive and check motor phase W.
ALARM 33, Inrush fault
Too many power-ups have occurred within a short time
period.
Troubleshooting
•
Let the unit cool to operating temperature.
WARNING/ALARM 34, Fieldbus communication fault
The serial communication bus on the communication
option card is not working.
WARNING/ALARM 36, Mains failure
This warning/alarm is only active if the supply voltage to
the adjustable frequency drive is lost and
parameter 14-10 Mains Failure
is not set to option
[0] No
Function
. Check the fuses to the adjustable frequency drive
and line power supply to the unit.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
is displayed.
Troubleshooting
Cycle power
Check that the option is properly installed
Check for loose or missing wiring
It may be necessary to contact Danfoss service or the
supplier. Note the code number for further troubleshooting
directions.
No.
Text
0
Serial port cannot be initialized. Contact your
Danfoss supplier or Danfoss Service Department.
256–258
Power EEPROM data is defective or too old
512
Control board EEPROM data is defective or too old.
513
Communication timeout reading EEPROM data
514
Communication timeout reading EEPROM data
515
Application-oriented control cannot recognize the
EEPROM data.
516
Cannot write to the EEPROM because a write
command is on progress.
517
Write command is under timeout
518
Failure in the EEPROM
519
Missing or invalid barcode data in EEPROM
783
Parameter value outside of min/max limits
1024–1279 A CAN message that has to be sent could not be
sent.
1281
Digital signal processor flash timeout
1282
Power micro software version mismatch
1283
Power EEPROM data version mismatch
1284
Cannot read digital signal processor software
version
1299
Option SW in slot A is too old
1300
Option SW in slot B is too old
1301
Option SW in slot C0 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)
1317
Option SW in slot C0 is not supported (not
allowed)
Diagnostics and Troubleshoo...
Installation Manual
MG21B322
Danfoss A/S © 10/2015 All rights reserved.
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