Alarm, Warning And Extended Status Word - Danfoss FC 51 Series Programming Manual

Troubleshooting

6.1.1 Alarm, Warning and Extended Status Word

Bit Hex
0 1
1 2
2 4
3 8
4 10
5 20
6 40
7 80
8 100
9 200
10 400
11 800
12 1000
13 2000
14 4000
15 8000
16 10000
17 20000
18 40000
19 80000
20 100000
21 200000
22 400000
23 800000
24 1000000
25 2000000
26 4000000
27 8000000 134217728
28 10000000 268435456
29 20000000 536870912
30 40000000 1073741824
31 80000000 2147483648
Table 6.3
The alarm words, warning words and extended staus
words can be read out via serial bus for diagnose. See also
16-94 Ext. Status Word.
WARNING/ALARM 2, Live zero error
Signal on terminal 53 or 60 is less than 50% of value set in
6-10 Terminal 53 Low Voltage, 6-12 Terminal 53 Low Current
and 6-22 Terminal 60 Low Current.
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
for a fault in the input rectifier on the frequency converter.
Troubleshooting: Check the supply voltage and supply
currents to the frequency converter. The fault may be
caused by mains distortions. Installing Danfoss Line Filter
may rectify this problem.
®
VLT Micro Drive FC 51 Programming Guide
Par. 16-90
Dec AlarmWord
1 Brake check
2 Pwr.card temp
4 Earth Fault
8
16 Ctrl.word TO
32 Over Current
64
128 Motor th over
256 Motor ETR over
512 Inverter overload
1024 DC under volt
2048 DC over volt
4096 Short Circuit
8192
16384 Mains ph. loss
32768 "AMT Not OK"
65536 Live zero error
131072 Internal fault
262144
524288 U phase loss
1048576 V phase loss
2097152 W phase loss
4194304
8388608 Control Voltage Fault
16777216
33554432
67108864 Brake resistor short-circuit
Brake IGBT short-circuit
M4/M5: Earth Fault (Desat)
Drive initialised
Mech. brake low
®
MG02C602 - VLT is a registered Danfoss trademark
Par. 16-92
WarningWord
Pwr.card temp
Ctrl.word TO
Over Current
Torque limit
Motor th over
Motor ETR over
Inverter overload
DC under volt
DC over volt
Mains ph. loss
Live zero error
Current limit
MotorPhaseMissing
Undefined
WARNING/ALARM 7, DC overvoltage
If the intermediate circuit voltage exceeds the limit, the
frequency converter trips after a time.
Troubleshooting
Connect a brake resistor
Extend the ramp time
Change the ramp type
Activate the functions in 2-10 Brake Function
Increase 14-26 Trip Delay at Inverter Fault
The fault may be caused by mains distortions. Installing
Danfoss Line Filter may rectify this problem.
Par. 16-94
ExtendedStatusWord
Ramping
AMT running
Start CW/CCW
Slow down
Catch up
Above Feedback High
Below Feedback Low
Output current high
Output current low
Above Frequency High
6
Below Frequency Low
Braking
OVC active
AC brake
Above Reference High
Below Reference Low
Local Ref./Remote Ref.
DatabaseBusy
65
6