Num
-
ber
Description Warning Alarm/Trip Alarm/Trip Lock Parameter
reference
14 Ground fault X X X –
15 Hardware mismatch – X X –
16 Short circuit – X X –
17 Control word timeout (X) (X) – Parameter 8-04 Control Word
Timeout Function
18 Start failed X – Parameter 1-77 Compressor Start
Max Speed [RPM] and
parameter 1-79 Pump Start Max
Time to Trip
20 Temperature input error – – – –
21 Parameter error – – – –
22 Hoist mechanical brake (X) (X) Parameter group 2-2* No-Flow
Detection
23 Internal fans X – – –
24 External fans X – – –
25 Brake resistor short-circuited X – – –
26 Brake resistor power limit (X) (X) – Parameter 2-13 Brake Power
Monitoring
27 Brake chopper short-circuited X X –
28 Brake check (X) (X) – Parameter 2-15 Brake Check
29 Heat sink temp X X X
30 Motor phase U missing (X) (X) (X) Parameter 4-58 Missing Motor
Phase Function
31 Motor phase V missing (X) (X) (X) Parameter 4-58 Missing Motor
Phase Function
32 Motor phase W missing (X) (X) (X) Parameter 4-58 Missing Motor
Phase Function
33 Inrush fault – X X –
34 Fieldbus communication fault X X – –
35 Option fault – – –
36 Mains failure X X – –
37 Phase imbalance – X – –
38 Internal fault – X X –
39 Heat sink sensor – X X –
40 Overload of digital output terminal 27 (X) – – Parameter 5-00 Digital I/O Mode,
parameter 5-01 Terminal 27
Mode
41 Overload of digital output terminal 29 (X) – – Parameter 5-00 Digital I/O Mode,
parameter 5-02 Terminal 29
Mode
42 Ovrld X30/6-7 (X) – – –
43 External supply (option) – – –
45 Ground fault 2 X X X –
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 – Parameter 1-86 Trip Speed Low
[RPM]
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 – –
Troubleshooting
VLT
®
AQUA Drive FC 202
284 Danfoss A/S © 05/2018 All rights reserved. MG20OB02
55
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