Troubleshooting
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 OFF. Check the fuses to the frequency
converter.
ALARM 38, Internal fault
It may be necessary to contact your Danfoss supplier.
Some typical alarm messages:
0
Serial port cannot be initialized. Serious hardware
failure
256-258
Power EEPROM data is defect or too old
512
Control board EEPROM data is defect or too old
513
Communication time out reading EEPROM data
514
Communication time out reading EEPROM data
515
Application Orientated Control cannot recognize 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
9
9
783
Parameter value outside of min/max limits
1024-
A cantelegram that has to be sent, couldn't be sent
1279
1281
Digital Signal Processor flash timeout
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 Orientated Control is
registered. Debug information written in LCP
1792
DSP watchdog is active. Debugging of power part
data Motor Orientated Control data not transferred
correctly
2049
Power data restarted
2064-
H081x: option in slot x has restarted
2072
162
VLT AQUA Low Harmonic Drive Operating Instructions
2080-
2088
2096-
2104
2304
2305
2314
2315
2316
2324
2325
2326
2327
2330
2561
2562
2816
2817
2818
2819
2820
2821
2822
2836
3072-
5122
5123
5124
5125
5126
5376-
6231
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.
WARNING 40, Overload of Digital Output Terminal 27
Check the load connected to terminal 27 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-01 Terminal 27 Mode.
®
MG20T202 - VLT
is a registered Danfoss trademark
H082x: option in slot x has issued a powerup-wait
H083x: option in slot x has issued a legal powerup-
wait
Could not read any data from power EEPROM
Missing SW version from power unit
Missing power unit data from power unit
Missing SW version from power unit
Missing io_statepage from power unit
Power card configuration is determined to be
incorrect at power up
A power card has stopped communicating while
main power is applied
Power card configuration is determined to be
incorrect after the delay for power cards to register
Too many power card locations have been registered
as present
Power size information between the power cards
does not match
No communication from DSP to ATACD
No communication from ATACD to DSP (state
running)
Stack overflow Control board module
Scheduler slow tasks
Fast tasks
Parameter thread
LCP Stack overflow
Serial port overflow
USB port overflow
cfListMempool to small
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
Out of memory
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