6.1.1 Alarm, Warning and Extended Status Word
Par. 16-90 Par. 16-92 Par. 16-94
Bit Hex Dec AlarmWord WarningWord ExtendedStatusWord
0 1 1 Brake check Ramping
1 2 2 Pwr.card temp Pwr.card temp AMT running
2 4 4 Earth Fault Start CW/CCW
3 8 8 Slow down
4 10 16 Ctrl.word TO Ctrl.word TO Catch up
5 20 32 Over Current Over Current Above Feedback High
6 40 64 Torque limit Below Feedback Low
7 80 128 Motor th over Motor th over Output current high
8 100 256 Motor ETR over Motor ETR over Output current low
9 200 512 Inverter overload Inverter overload Above Frequency High
10 400 1024 DC under volt DC under volt Below Frequency Low
11 800 2048 DC over volt DC over volt
12 1000 4096 Short Circuit
13 2000 8192 Braking
14 4000 16384 Mains ph. loss Mains ph. loss
15 8000 32768 "AMT Not OK" OVC active
16 10000 65536 Live zero error Live zero error AC brake
17 20000 131072 Internal fault
18 40000 262144
19 80000 524288 U phase loss Above Reference High
20 100000 1048576 V phase loss Below Reference Low
21 200000 2097152 W phase loss Local Ref./Remote Ref.
22 400000 4194304
23 800000 8388608 Control Voltage Fault
24 1000000 16777216
25 2000000 33554432 Current limit
26 4000000 67108864 Brake resistor short-circuit
27 8000000 134217728 Brake IGBT short-circuit
28 10000000 268435456 M4/M5: Earth Fault (Desat) MotorPhaseMissing
29 20000000 536870912 Drive initialised
30 40000000 1073741824 Undefined
31 80000000 2147483648 Mech. brake low DatabaseBusy
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.
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.
Troubleshooting
VLT
®
Micro Drive FC 51 Programming Guide
MG02C602 - VLT
®
is a registered Danfoss trademark 65
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