ALARM 32, Motor phase W missing
Motor phase W between the drive system and the motor is
missing.
Troubleshooting
•
Remove the power from the drive system and
then 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 36, Mains failure
This warning/alarm is only active if the supply voltage to
the drive system is lost and
parameter 14-10 Mains Failure
is not set to option
[0] No Function
.
•
Check the fuses to the drive system and the
mains supply to the unit.
•
Check that mains voltage conforms to product
specifications.
•
Check that the following conditions are not
present:
Alarm 307, Excessive THD(V)
,
alarm 321, Voltage
imbalance
,
warning 417, Mains undervoltage
, or
warning 418, Mains overvoltage
is reported if any
of the listed conditions are true:
-
The 3-phase voltage magnitude drops
below 25% of the nominal mains
voltage.
-
Any single-phase voltage exceeds 10%
of the nominal mains voltage.
-
Percent of phase or magnitude
imbalance exceeds 8%.
-
Voltage THD exceeds 10%.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
is shown.
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 initialized. 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
Danfoss service department.
1299
The option software in slot A is too old.
1300
The option software in slot B is too old.
1302
The option software in slot C1 is too old.
1315
The option software in slot A is not supported/
allowed.
1316
The option software in slot B is not supported/
allowed.
1318
The option software in slot C1 is not supported/
allowed.
1379–2819
Internal fault. Contact the Danfoss supplier or
Danfoss service department.
1792
Hardware reset of digital signal processor.
1793
Motor-derived parameters not transferred correctly
to the digital signal processor.
1794
Power data not transferred correctly at power-up
to the digital signal processor.
1795
The digital signal processor has received too many
unknown SPI telegrams. The frequency converter
also uses this fault code if the MCO does not
power up correctly. This situation can occur due to
poor EMC protection or improper grounding.
1796
RAM copy error.
2561
Replace the control card.
2820
LCP stack overflow.
2821
Serial port overflow.
2822
USB port overflow.
3072–5122
Parameter value is outside its limits.
5123
Option in slot A: Hardware incompatible with the
control board hardware.
5124
Option in slot B: Hardware incompatible with the
control board hardware.
5125
Option in slot C0: Hardware incompatible with the
control board hardware.
5126
Option in slot C1: Hardware incompatible with the
control board hardware.
5376–6231
Internal fault. Contact the Danfoss supplier or
Danfoss service department.
Table 6.7 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,
Maintenance, Diagnostics, a...
User Guide
MG37L202
Danfoss A/S © 08/2017 All rights reserved.
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