No. Description Warning Alarm/Trip Alarm/Trip Lock Parameter Reference
1 10 Volts low X
2 Live zero error (X) (X) 6-01
3 No motor (X) 1-80
4 Line phase loss (X) (X) (X) 14-12
5 DC link voltage high X
6 DC link voltage low X
7 DC overvoltage X X
8 DC undervoltage X X
9 Inverter overloaded X X
10 Motor ETR overtemperature (X) (X) 1-90
11 Motor thermistor over temperature (X) (X) 1-90
12 Torque limit X X
13 Overcurrent X X X
14 Ground fault X X X
15 Hardware mismatch X X
16 Short Circuit X X
17 Control word timeout (X) (X) 8-04
23 Internal Fan Fault X
24 External Fan Fault X 14-53
25 Brake resistor short-circuited X
26 Brake resistor power limit (X) (X) 2-13
27 Brake chopper short-circuited X X
28 Brake check (X) (X) 2-15
29 Drive overtemperature X X X
30 Motor phase U missing (X) (X) (X) 4-58
31 Motor phase V missing (X) (X) (X) 4-58
32 Motor phase W missing (X) (X) (X) 4-58
33 Soft-charge fault X X
34 Serial Communication Bus communication fault X X
35 Out of frequency ranges X X
36 Line failure X X
37 Phase Imbalance X X
38 Internal fault X X
39 Heatsink sensor X X
40 Overload of Digital Output Terminal 27 (X) 5-00, 5-01
41 Overload of Digital Output Terminal 29 (X) 5-00, 5-02
42 Overload of Digital Output On X30/6 (X) 5-32
42 Overload of Digital Output On X30/7 (X) 5-33
46 Pwr. card supply X X
47 24 V supply low X X X
48 1.8 V supply low X X
49 Speed limit X (X) 1-86
50 AMA calibration failed X
51 AMA check U
nom
and I
nom
X
52 AMA low I
nom
X
53 AMA motor too big X
54 AMA motor too small X
55 AMA Parameter out of range X
56 AMA interrupted by user X
57 AMA timeout X
58 AMA internal fault X X
59 Current limit X
60 External Interlock X
62 Output Frequency at Maximum Limit X
64 Voltage Limit X
65 Control Board Overtemperature X X X
Table 8.1: Alarm/Warning code list
8 Troubleshooting VLT
®
HVAC Drive Instruction Manual
8-2
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
8
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