Inrush Fault; Fieldbus Communication Fault; Mains Failure; Internal Fault - Danfoss VLT FC 103 Instruction Manual

Warnings and Alarms
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.
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.
MG16E222
Instruction Manual
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
Table 8.3 is displayed.
Troubleshooting
It may be necessary to contact your Danfoss supplier or
service department. Note the code number for further
troubleshooting directions.
No.
0
256-258
512-519
783
1024-1284
1299
1300
1302
1315
1316
1318
1379-2819
2561
2820
2821
2822
3072-5122
5123
5124
5125
5126
5376-6231
Table 8.3 Internal Fault Codes
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
Cycle power
Check that the option is properly installed
Check for loose or missing wiring
Text
Serial port cannot be initialized. Contact your
Danfoss supplier or Danfoss Service Department.
Power EEPROM data is defective or too old.
Replace power card.
Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
Parameter value outside of min/max limits
Internal fault. Contact your Danfoss supplier or the
Danfoss Service Department.
Option SW in slot A is too old
Option SW in slot B is too old
Option SW in slot C1 is too old
Option SW in slot A is not supported (not allowed)
Option SW in slot B is not supported (not allowed)
Option SW in slot C1 is not supported (not
allowed)
Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
Replace control card
LCP stack overflow
Serial port overflow
USB port overflow
Parameter value is outside its limits
Option in slot A: Hardware incompatible with
control board hardware
Option in slot B: Hardware incompatible with
control board hardware
Option in slot C0: Hardware incompatible with
control board hardware
Option in slot C1: Hardware incompatible with
control board hardware
Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
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