No. Description Warning Alarm/Trip Alarm/Trip Lock Parameter Reference
1 10 Volts low X
2 Live zero error (X) (X) 6-01
4 Mains phase loss X
5 DC link voltage high X
6 DC link voltage low X
7 DC over voltage X X
8 DC under voltage X X
13 Over Current X X X
14 Earth 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
29 Heatsink temp X X X
33 Inrush fault X X
34 Fieldbus fault X X
35 Option fault X X
38 Internal fault
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
65 Control Board Over-temperature X X X
66 Heat sink Temperature Low X
67 Option Configuration has Changed X
68 Safe Stop Activated
X
1)
69 Pwr. Card Temp X X
70 Illegal FC configuration X
72 Dangerous Failure
X
1)
73 Safe Stop Auto Restart
76 Power Unit Setup X
79 Illegal PS config X X
80 Drive Initialised to Default Value X
244 Heatsink temp X X X
245 Heatsink sensor X X
246 Pwr.card supply X X
247 Pwr.card temp X X
248 Illegal PS config X X
250 New spare part X
251 New Type Code X X
300 Mains Cont. fault X
301 SC Cont. Fault X
302 Cap. Over Current X X
303 Cap. Earth Fault X X
304 DC Over Current X X
305 Mains Freq. Limit X
306 Compensation Limit X
308 Resistor temp X X
309 Mains Earth Fault X X
311 Switch. Freq. Limit X
312 CT Range X
314 Auto CT Interrupt X
315 Auto CT Error X
316 CT Location Error X
317 CT Polarity Error X
318 CT Ratio Error X
Table 9.4: Alarm/Warning code list
A trip is the action when an alarm has appeared. The trip will coast the motor and can be reset by pressing the reset button or make a reset by a digital
input (Par. 5-1* [1]). The origin event that caused an alarm cannot damage the frequency converter or cause dangerous conditions. A trip lock is an
action when an alarm occurs, which may cause damage to frequency converter or connected parts. A Trip Lock situation can only be reset by a power
cycling.
LED indication
Warning yellow
Alarm flashing red
Trip locked yellow and red
VLT AQUA Low Harmonic Drive Operating In-
structions 9 Troubleshooting
MG.20.T1.02 - VLT
®
is a registered Danfoss trademark 179
9
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