Danfoss VLT AutomationDrive FC 301 Instruction Manual page 47

Maintenance, Diagnostics an...
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 35, Option fault
An option alarm is received. The alarm is option-specific.
The most likely cause is a power-up or a communication
fault.
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 option [0] No Function. Check the fuses
to the adjustable frequency drive and line power supply to
the unit.
ALARM 37, Phase imbalance
There is a current imbalance between the power units.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
Table 7.4 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.
Replace power card.
MG33AP22
Instruction Manual
No.
512-519
783
1024-1284
1299
1300
1302
1315
1316
1318
1379-2819
1792
1793
1794
1795
1796
2561
2820
2821
2822
3072-5122
5123
5124
5125
5126
5376-6231
Table 7.4 Internal Fault Codes
ALARM 39, Heatsink sensor
No feedback from the heatsink 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 gate drive card, or the ribbon cable between the
power card and gate drive card.
Danfoss A/S © Rev. 09/2014 All rights reserved.
Text
Internal fault. Contact the Danfoss supplier or
Danfoss Service Department.
Parameter value outside of minimum/maximum
limits.
Internal fault. Contact the Danfoss supplier or the
Danfoss Service Department.
The option SW in slot A is too old.
The option SW in slot B is too old.
The option SW in slot C1 is too old.
The option SW in slot A is not supported (not
allowed).
The option SW in slot B is not supported (not
allowed).
The option SW in slot C1 is not supported (not
allowed).
Internal fault. Contact the Danfoss supplier or
Danfoss Service Department.
HW reset of DSP.
Motor-derived parameters not transferred correctly
to DSP.
Power data not transferred correctly at power-up
to DSP.
The DSP has received too many unknown SPI
messages.
RAM copy error.
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 the Danfoss supplier or
Danfoss Service Department.
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