No. Description Warning Alarm/Trip Alarm/Trip Lock Parameter Reference
90 Feedback mon. X
91 Analog input 54 wrong settings X
92 No-Flow X X Par. 22-2*
93 Dry Pump X X Par. 22-2*
94 End of Curve X X Par. 22-5*
95 Broken Belt X X Par. 22-6*
96 Start Delayed X Par. 22-7*
250 New spare part X
251 New type code X
Table 7.2: Alarm/Warning code list 2/2
(X) Dependent on parameter
LED indication
Warning yellow
Alarm flashing red
Trip-locked yellow and red
Alarm Word and Extended Status Word
Bit Hex Dec Alarm Word Warning Word Extended Status Word
0 00000001 1 Brake Check Brake Check Ramping
1 00000002 2 Pwr. Card Temp Pwr. Card Temp AMA Running
2 00000004 4 Ground Fault Ground Fault Start CW/CCW
3 00000008 8 Ctrl.Card Temp Ctrl.Card Temp Slow Down
4 00000010 16 Ctrl. Word TO Ctrl. Word TO Catch Up
5 00000020 32 Overcurrent Overcurrent Feedback High
6 00000040 64 Torque Limit Torque Limit Feedback Low
7 00000080 128 Motor Th Over Motor Th Over Output Current High
8 00000100 256 Motor ETR Over Motor ETR Over Output Current Low
9 00000200 512 Inverter Overld. Inverter Overld. Output Freq High
10 00000400 1024 DC Undervolt DC Undervolt Output Freq Low
11 00000800 2048 DC Overvolt DC Overvolt Brake Check OK
12 00001000 4096 Short Circuit DC Voltage Low Braking Max
13 00002000 8192 Soft-charge fault DC Voltage High Braking
14 00004000 16384 Line ph. Loss Line ph. Loss Out of Speed Range
15 00008000 32768 AMA Not OK No Motor OVC Active
16 00010000 65536 Live Zero Error Live Zero Error
17 00020000 131072 Internal Fault 10 V Low
18 00040000 262144 Brake Overload Brake Overload
19 00080000 524288 U-phase Loss Brake Resistor
20 00100000 1048576 V-phase Loss Brake IGBT
21 00200000 2097152 W-phase Loss Speed Limit
22 00400000 4194304 Ser. Com. Bus Fault Ser. Com. Bus Fault
23 00800000 8388608 24 V Supply Low 24 V Supply Low
24 01000000 16777216 Line Failure Line Failure
25 02000000 33554432 1.8 V Supply Low Current Limit
26 04000000 67108864 Brake Resistor Low Temp
27 08000000 134217728 Brake IGBT Voltage Limit
28 10000000 268435456 Option Change Unused
29 20000000 536870912 Drive Initialized Unused
30 40000000 1073741824 Safe Stop Unused
Table 7.3: Description of Alarm Word, Warning Word and Extended Status Word
The alarm words, warning words and extended status words can be read out for diagnosis via serial bus or optional serial communication bus. See also
par. 16-90
Alarm Word
, par. 16-92
Warning Word
and par. 16-94
Ext. Status Word
.
VLT
®
HVAC Drive Instruction Manual 7 Troubleshooting
MG.11.A9.22 - VLT
®
is a registered Danfoss trademark
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