Danfoss VLT AutomationDrive FC 302 Operating Instructions Manual page 55

Maintenance, Diagnostics an...
Troubleshooting
•
Remove the power from the frequency converter
and check motor phase V.
ALARM 32, Motor phase W missing
Motor phase W between the frequency converter and the
motor is missing.
Troubleshooting
•
Remove the power from the frequency converter
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 fieldbus 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 frequency converter is lost and parameter 14-10 Mains
Failure is not set to option [0] No Function. Check the fuses
to the frequency converter and mains 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.
Number Text
0 The serial port cannot be initialised. Contact the
Danfoss supplier or Danfoss Service Department.
256–258 The power EEPROM data is defective or too old.
Replace the power card.
512–519 Internal fault. Contact the Danfoss supplier or
Danfoss Service Department.
783 Parameter value outside of minimum/maximum
limits.
1024–1284 Internal fault. Contact the Danfoss supplier or the
Danfoss Service Department.
1299 The option software in slot A is too old.
1300 The option software in slot B is too old.
MG34U402
Operating Instructions
Number
1302
1315
1316
1318
1379–2819 Internal fault. Contact the Danfoss supplier or
1792
1793
1794
1795
1796
2561
2820
2821
2822
3072–5122 Parameter value is outside its limits.
5123
5124
5125
5126
5376–6231 Internal fault. Contact the Danfoss supplier or
Table 7.4 Internal Fault Codes
ALARM 39, Heat sink sensor
No feedback from the heat sink 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.
WARNING 40, Overload of digital output terminal 27
Check the load connected to terminal 27 or remove the
short circuit connection. Check parameter 5-00 Digital I/O
Mode and parameter 5-01 Terminal 27 Mode.
WARNING 41, Overload of digital output terminal 29
Check the load connected to terminal 29 or remove the
short circuit connection. Check parameter 5-00 Digital I/O
Mode and parameter 5-02 Terminal 29 Mode.
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Text
The option software in slot C1 is too old.
The option software in slot A is not supported (not
allowed).
The option software in slot B is not supported (not
allowed).
The option software in slot C1 is not supported
(not allowed).
Danfoss Service Department.
HW reset of DSP.
Motor derived parameters not transferred correctly
to the DSP.
Power data not transferred correctly at power-up
to the DSP.
The DSP has received too many unknown SPI
telegrams.
The frequency converter also uses this fault code if
the MCO does not power up correctly, for example
due to poor EMC protection or improper
grounding.
RAM copy error.
Replace the control card.
LCP stack overflow.
Serial port overflow.
USB port overflow.
Option in slot A: Hardware incompatible with the
control board hardware.
Option in slot B: Hardware incompatible with the
control board hardware.
Option in slot C0: Hardware incompatible with the
control board hardware.
Option in slot C1: Hardware incompatible with the
control board hardware.
Danfoss Service Department.
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