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
adjustable frequency drive power size.
Troubleshooting
Check for the following conditions
•
Ambient temperature too high
•
Motor cable too long
•
Incorrect airflow clearance above and below the
adjustable frequency drive
•
Blocked airflow around the adjustable frequency
drive
•
Damaged heatsink fan
•
Dirty heatsink
This alarm is based on the temperature measured by the
heatsink sensor mounted inside the IGBT modules.
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.
Remove 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.
Remove 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.
Remove 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. 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
14-10 Mains
Failure
is NOT set to
[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
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 the Danfoss supplier or
service department. Note the code number for further
troubleshooting directions.
No.
Text
0
Serial port cannot be initialized. Contact the
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 time out reading EEPROM data
514
Communication time out 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 cannot 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)
1318
Option SW in slot C1 is not supported (not
allowed)
1379
Option A did not respond when calculating
platform version
1380
Option B did not respond when calculating
platform version
Warnings and Alarms
VLT
®
HVAC Drive D-Frame
Instruction Manual
8-8
MG16D222 - VLT
®
is a registered Danfoss trademark
8
8
