Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual page 66

Diagnostics and Troubleshoo...
ALARM 29, Heat Sink temp
The maximum temperature of the heat sink has been
exceeded. The temperature fault resets when the
temperature falls below a defined heat sink temperature.
The trip and reset points are different based on the
frequency converter power size.
Troubleshooting
Check for the following conditions.
•
Ambient temperature too high.
•
Motor cables too long.
•
Incorrect airflow clearance above and below the
frequency converter
•
Blocked airflow around the frequency converter.
•
Damaged heat sink fan.
•
Dirty heat sink.
7 7
For the D, E, and F enclosures, this alarm is based on the
temperature measured by the heat sink sensor mounted
inside the IGBT modules. For the F enclosures, the thermal
sensor in the rectifier module can also cause this alarm.
Troubleshooting
•
Check fan resistance.
•
Check soft charge fuses.
•
IGBT thermal sensor.
ALARM 30, Motor phase U missing
Motor phase U between the frequency converter and the
motor is missing.
Remove power from the frequency converter and check
motor phase U.
ALARM 31, Motor phase V missing
Motor phase V between the frequency converter and the
motor is missing.
Remove 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.
Remove 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. 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 frequency converter is lost and 14-10 Mains Failure is
not set to [0] No Function. Check the fuses to the
frequency converter and mains supply to the unit.
64
Operating Instructions
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
Table 7.5 is displayed.
Troubleshooting
It may be necessary to contact Danfoss service or the
supplier. Note the code number for further trouble-
shooting directions.
Danfoss A/S © Rev. 2014-01-22 All rights reserved.
•
Cycle power
•
Check that the option is properly installed
•
Check for loose or missing wiring
No. Text
0 Serial port cannot be initialised. Contact your
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 recognise the
EEPROM data.
516 Cannot write to the EEPROM because a write
command is on progress.
517 Write command is under time-out
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 telegram that has to be sent could not be
sent.
1281 Digital signal processor flash time-out
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
1381 Option C0 did not respond when calculating
platform version.
1382 Option C1 did not respond when calculating
platform version.
1536 An exception in the application-oriented control is
registered. Debug information written in LCP.
MG21B202