Alarm Words - Danfoss VLT HVAC Series Programming Manual

4 Troubleshooting

4.1.2 Alarm words

Alarm word, par.16-90
Bit
(Hex)
00000001
00000002
00000004
00000008
00000010
4
00000020
00000040
00000080
00000100
00000200
00000400
00000800
00001000
00002000
00004000
00008000
00010000
00020000
00040000
00080000
00100000
00200000
00400000
00800000
01000000
02000000
04000000
08000000
10000000
20000000
40000000
80000000
4-4
Alarm Word
Alarm Word
Alarm Word
(par.16-90
Brake check
Power card overtemperature
Ground fault
Ctrl. card overtemperature
Control word timeout
Overcurrent
Torque limit
Motor thermistor overtemp.
Motor ETR overtemperature
Inverter overloaded
DC link undervoltage
DC link overvoltage
Short circuit
Soft-charge fault
Line phase loss
AMA not OK
Live zero error
Internal fault
Brake overload
Motor phase U is missing
Motor phase V is missing
Motor phase W is missing
Serial communication bus fault
24 V supply fault
Line failure
1.8 V supply fault
Brake resistor short circuit
Brake chopper fault
Option change
Drive initialized
Safe Stop
Not used
MG.11.C6.22 - VLT
Alarm word 2, par.16-91
Bit
) (Hex)
00000001
00000002
00000004
00000008
00000010
00000020
00000040
00000080
00000100
00000200
00000400
00000800
00001000
00002000
00004000
00008000
00010000
00020000
00040000
00080000
00100000
00200000
00400000
00800000
01000000
02000000
04000000
08000000
10000000
20000000
40000000
80000000
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VLT ® HVAC Drive Programming Guide
Alarm word 2
Alarm Word 2
Alarm word 2
(par.16-91
Service Trip, read / Write
Reserved
Service Trip, Typecode /
Spare part
Reserved
Reserved
No Flow
Dry Pump
End of Curve
Broken Belt
Not used
Not used
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Not used
Fans error
ECB error
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
)