Fault Messages - Danfoss VLT AQUA Design Manual

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VLT
AQUA Drive Design Guide
Alarm Word and Extended Status Word
Bit
Hex
0
00000001
1
00000002
2
00000004
3
00000008
4
00000010
5
00000020
6
00000040
7
00000080
8
00000100
9
00000200
10
00000400
11
00000800
12
00001000
13
00002000
14
00004000
15
00008000
16
00010000
17
00020000
18
00040000
19
00080000
20
00100000
21
00200000
22
00400000
23
00800000
24
01000000
25
02000000
26
04000000
27
08000000
28
10000000
29
20000000
30
40000000
Table 8.2: Description of Alarm Word, Warning Word and Extended Status Word
The alarm words, warning words and extended status words can be read out via serial bus or optional fieldbus for diagnosis. See also par. 16-90, 16-92
and 16-94.

8.1.1. Fault messages

WARNING 1, 10 Volts low:
The 10 V voltage from terminal 50 on the control card is below 10 V.
Remove some of the load from terminal 50, as the 10 V supply is over-
loaded. Max. 15 mA or minimum 590 Ω.
WARNING/ALARM 2, Live zero error:
The signal on terminal 53 or 54 is less than 50% of the value set in par.
6-10, 6-12, 6-20, or 6-22 respectively.
WARNING/ALARM 3, No motor:
No motor has been connected to the output of the frequency converter.
WARNING/ALARM 4, Mains phase loss:
A phase is missing on the supply side, or the mains voltage imbalance is
too high.
This message also appears in case of a fault in the input rectifier on the
frequency converter.
Check the supply voltage and supply currents to the frequency converter.
WARNING 5, DC link voltage high:
The intermediate circuit voltage (DC) is higher than the overvoltage limit
of the control system. The frequency converter is still active.
WARNING 6, DC link voltage low:
The intermediate circuit voltage (DC) is below the undervoltage limit of
the control system. The frequency converter is still active.
Dec
Alarm Word
1
Brake Check
2
Pwr. Card Temp
4
Earth Fault
8
Ctrl.Card Temp
16
Ctrl. Word TO
32
Over Current
64
Torque Limit
128
Motor Th Over
256
Motor ETR Over
512
Inverter Overld.
1024
DC under Volt
2048
DC over Volt
4096
Short Circuit
8192
Inrush Fault
16384
Mains ph. Loss
32768
AMA Not OK
65536
Live Zero Error
131072
Internal Fault
262144
Brake Overload
524288
U phase Loss
1048576
V phase Loss
2097152
W phase Loss
4194304
Fieldbus Fault
8388608
24 V Supply Low
16777216
Mains Failure
33554432
1.8V Supply Low
67108864
Brake Resistor
134217728
Brake IGBT
268435456
Option Change
536870912
Drive Initialised
1073741824
Safe Stop
®
MG.20.N3.02 - VLT
is a registered Danfoss trademark
Warning Word
Brake Check
Pwr. Card Temp
Earth Fault
Ctrl.Card Temp
Ctrl. Word TO
Over Current
Torque Limit
Motor Th Over
Motor ETR Over
Inverter Overld.
DC under Volt
DC over Volt
DC Voltage Low
DC Voltage High
Mains ph. Loss
No Motor
Live Zero Error
10V Low
Brake Overload
Brake Resistor
Brake IGBT
Speed Limit
Fieldbus Fault
24V Supply Low
Mains Failure
Current Limit
Low Temp
Voltage Limit
Unused
Unused
Unused
WARNING/ALARM 7, DC over voltage:
If the intermediate circuit voltage exceeds the limit, the frequency con-
verter trips after a time.
Possible corrections:
Select Over Voltage Control function in par. 2-17
Connect a brake resistor
Extend the ramp time
Activate functions in par. 2-10
Increase par. 14-26
Selecting OVC function will extend the ramp times.
8. Troubleshooting
Extended Status Word
Ramping
AMA Running
Start CW/CCW
Slow Down
Catch Up
Feedback High
Feedback Low
Output Current High
Output Current Low
Output Freq High
Output Freq Low
Brake Check OK
Braking Max
Braking
Out of Speed Range
OVC Active
155
8

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