Danfoss VLT Instruction Manual page 146

Hvac drive
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7 Troubleshooting
No.
Description
1
10 Volts low
2
Live zero error
3
No motor
4
Line phase loss
5
DC link voltage high
6
DC link voltage low
7
DC overvoltage
8
DC undervoltage
9
Inverter overloaded
10
Motor ETR overtemperature
11
Motor thermistor overtemperature
12
Torque limit
13
Overcurrent
14
Ground fault
15
Incomp. HW
16
Short Circuit
17
Control word timeout
22
Hoist mech. brake
23
Internal fans
24
External fans
25
Brake resistor short-circuited
7
26
Brake resistor power limit
27
Brake chopper short-circuited
28
Brake check
29
Power board overtemp.
30
Motor phase U missing
31
Motor phase V missing
32
Motor phase W missing
33
Soft-charge fault
34
Serial communication bus fault
36
Line failure
37
Phase imbalance
38
Internal fault
39
Heatsink sensor
40
Overload T27
41
Overload T29
42
Overload X30/6-7
46
Pwr. card supply
47
24 V supply low
48
1.8 V supply low
49
Speed limit
50
AMA calibration failed
51
AMA check U
nom
52
AMA low I
nom
53
AMA motor too big
54
AMA motor too small
55
AMA parameter out of range
56
AMA interrupted by user
57
AMA timeout
58
AMA internal fault
59
Current limit
60
External interlock
61
Tracking error
62
Output Frequency at Maximum Limit
64
Voltage Limit
65
Control Board Overtemperature
66
Heatsink Temperature Low
67
Option Configuration Has Changed
68
Safe Stop Activated
69
Pwr. card temp.
70
Illegal FC configuration
Table 7.1: Alarm/Warning code list 1/2
7-2
and I
nom
MG.11.A9.22 - VLT
Warning
Alarm/Trip
Alarm/Trip Lock
X
(X)
(X)
(X)
(X)
(X)
X
X
X
X
X
X
X
X
(X)
(X)
(X)
(X)
X
X
X
X
X
X
X
X
(X)
(X)
X
X
(X)
(X)
X
X
(X)
(X)
X
X
(X)
(X)
(X)
(X)
(X)
(X)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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is a registered Danfoss trademark
VLT
®
HVAC Drive Instruction Manual
Parameter Reference
Live Zero Time-
par.6-01
out Function
Function at
par.1-80
Stop
Function at
(X)
par. 14-12
Mains Imbalance
par.1-90
Motor Thermal
Protection
par.1-90
Motor Thermal
Protection
X
X
X
X
Control Time-
par. 8-04
out Function
Brake Power
par. 2-13
Monitoring
Brake Check
par. 2-15
X
Missing Motor
(X)
par. 4-58
Phase Function
(X)
par. 4-58
Missing Motor
Phase Function
(X)
par. 4-58
Missing Motor
Phase Function
X
X
X
X
X

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