5 Warnings and Alarms
Fault
number
Alarm/
warning bit
number
Fault text Warning Alarm Trip
locked
Cause of problem
2 16 Live zero error X X –
Signal on terminal 53 or 54 is less than 50% of the value set
in 6-10 Terminal 53 Low Voltage, 6-12 Terminal 53 Low Current,
6-20 Terminal 54 Low Voltage, or 6-22 Terminal 54 Low Current.
See also parameter group 6-0* Analog I/O Mode.
4 14 Mains ph. loss X X X
Missing phase on the supply side or too high voltage
imbalance. Check the supply voltage. See 14-12 Function at
Mains Imbalance.
7 11 DC over volt X X – Intermediate circuit voltage exceeds the limit.
8 10 DC under volt X X –
Intermediate circuit voltage drops below voltage warning low
limit.
9 9 Inverter overload X X – More than 100% load for a long time.
10 8 Motor ETR over X X –
Motor is too hot due to more than 100% load for a long
time. See 1-90 Motor Thermal Protection.
11 7 Motor th over X X –
Thermistor or thermistor connection is disconnected. See
1-90 Motor Thermal Protection.
13 5 Over Current X X X Inverter peak current limit is exceeded.
14 2 Earth Fault – X X Discharge from output phases to ground.
16 12 Short Circuit – X X Short-circuit in motor or on motor terminals.
17 4 Ctrl. word TO X X –
No communication to frequency converter. See parameter
group 8-0* General Settings.
24 50 Fan Fault X X –
The heat-sink cooling fan is not working (only on 400 V, 30–
90 kW units).
30 19 U phase loss – X X
Motor phase U is missing. Check the phase. See 4-58 Missing
Motor Phase Function.
31 20 V phase loss – X X
Motor phase V is missing. Check the phase. See 4-58 Missing
Motor Phase Function.
32 21 W phase loss – X X
Motor phase W is missing. Check the phase. See 4-58 Missing
Motor Phase Function.
38 17 Internal fault – X X Contact the local Danfoss supplier.
44 28 Earth Fault – X X
Discharge from output phases to ground, using the value of
15-31 Alarm Log Value if possible.
46 33
Control Voltage
Fault
– X X
Control voltage is low. Contact the local Danfoss supplier.
47 23 24 V supply low X X X 24 V DC supply may be overloaded.
50
AMA calibration
failed
– X –
Contact the local Danfoss supplier.
51 15 AMA Unom,Inom – X –
The setting of motor voltage, motor current, and motor
power is wrong. Check the settings.
52 – AMA low Inom – X – The motor current is too low. Check the settings.
53 – AMA big motor – X – The motor is too big to perform AMA.
54 – AMA small mot – X – The motor is too small to perform AMA.
55 – AMA par. range – X –
The parameter values found from the motor are outside the
acceptable range.
56 –
AMA user
interrupt
– X – The AMA has been interrupted by the user.
Warnings and Alarms Quick Guide
40 Danfoss A/S © 08/2014 All rights reserved. MG18A602
55
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