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 timeout reading EEPROM data
514 Communication timeout reading EEPROM data
515 Application Orientated Control cannot recognize the EE-
PROM data
516 Cannot write to the EEPROM because a write command
is on progress
517 Write command is under timeout
518 Failure in the EEPROM
519 Missing or invalid Barcode data in EEPROM
783 Parameter value outside of min/max limits
1024-127
9
A CAN message that has to be sent, couldn't be sent
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 Ver-
sion.
1380 Option B did not respond when calculating Platform Ver-
sion.
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
2064-207
2
H081x: option in slot x has restarted
2080-2088 H082x: option in slot x has issued a power-up wait
2096-2104 H083x: option in slot x has issued a legal power-up
wait
2304 Could not read any data from power EEPROM
2305 Missing SW version from power unit
2314 Missing power unit data from power unit
2315 Missing SW version from power unit
2316 Missing io_statepage from power unit
2324 Power card configuration is determined to be incorrect
at power-up
2330 Power size information between the power cards does
not match
2561 No communication from DSP to ATACD
2562 No communication from ATACD to DSP (state running)
2816 Stack overflow Control board module
2817 Scheduler slow tasks
2818 Fast tasks
2819 Parameter thread
2820 LCP Stack overflow
2821 Serial port overflow
2822 USB port overflow
2836 cfListMempool to small
3072-5122 Parameter value is outside its limits
5123 Option in slot A: Hardware incompatible with control
board hardware
5124 Option in slot B: Hardware incompatible with control
board hardware
5125 Option in slot C0: Hardware incompatible with control
board hardware
5126 Option in slot C1: Hardware incompatible with control
board hardware
5376-6231 Out of memory
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 connec-
tion. Check par. 5-00
Digital I/O Mode
and par. 5-01
Terminal 27 Mode
.
WARNING 41, Overload of Digital Output Terminal 29
Check the load connected to terminal 29 or remove short-circuit connec-
tion. Check par. 5-00
Digital I/O Mode
and par. 5-02
Terminal 29 Mode
.
WARNING 42, Overload of Digital Output on X30/6 or Overload
of Digital Output on X30/7
For X30/6, check the load connected to X30/6 or remove short-circuit
connection. Check par. 5-32
Term X30/6 Digi Out (MCB 101)
.
For X30/7, check the load connected to X30/7 or remove short-circuit
connection. Check par. 5-33
Term X30/7 Digi Out (MCB 101)
.
ALARM 46, Power card supply
The supply on the power card is out of range.
There are three power supplies generated by the switch mode power
supply (SMPS) on the power card: 24 V, 5 V, +/-18 V. When powered
with 24 VDC with the MCB 107 option, only the 24 V and 5 V supplies are
monitored. When powered with three-phase AC line voltage, all three
supplied are monitored.
WARNING 47, 24 V supply low
The 24 V DC is measured on the control card. The external V DC backup
power supply may be overloaded, otherwise contact your Danfoss sup-
plier.
8 Troubleshooting VLT
®
HVAC Drive Instruction Manual
8-8
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
8
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