No. Description Warn-
ing
Alarm/Trip Alarm/Trip Lock Parameter Refer-
ence
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 overtemperature (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
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 Power board overtemp. 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 fault X X    
38 Internal fault   X X  
47 24 V supply low X X X  
48 1.8 V supply low   X X  
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      
61 Tracking Error (X) (X)   4-30
62 Output Frequency at Maximum Limit X      
64 Voltage Limit X      
65 Control Board Overtemperature X X X  
66 Heatsink Temperature Low X      
67 Option Configuration Has Changed   X    
68 Safe Stop Activated   X    
80 Drive Initialized to Default Value   X    
 6.1: Alarm/Warning code list
(X) Dependent on parameter
LED indication
Warning yellow
Alarm flashing red
Trip-locked yellow and red
6. Warnings and Alarms
VLT
®
 HVAC DRIVE High Power
Instruction Manual
126
   MG.11.F1.22 - VLT
®
 is a registered Danfoss trademark.   
6