Warnings And Alarms - Danfoss VLT FC 101 Quick Manual

Warnings and Alarms

5 Warnings and Alarms
Fault Alarm/ Fault text
number warning bit
number
2 16 Live zero error
4 14 Mains ph. loss
7 11 DC over volt
8 10 DC under volt
9 9 Inverter overload
10 8 Motor ETR over
11 7 Motor th over
13 5 Over Current
14 2 Earth Fault
16 12 Short Circuit
17 4 Ctrl. word TO
24 50 Fan Fault
30 19 U phase loss
31 20 V phase loss
32 21 W phase loss
38 17 Internal fault
44 28 Earth Fault
Control Voltage
46 33
Fault
47 23 24 V supply low
AMA calibration
50
failed
51 15 AMA Unom,Inom
52 – AMA low Inom
53 – AMA big motor
54 – AMA small mot
55 – AMA par. range
AMA user
56 –
interrupt
MG18A802
Quick Guide
Warning Alarm Trip Cause of problem
locked
Signal on terminal 53 or 54 is less than 50% of the value set
in parameter 6-10 Terminal 53 Low Voltage,
parameter 6-12 Terminal 53 Low Current,
X X –
parameter 6-20 Terminal 54 Low Voltage, or
parameter 6-22 Terminal 54 Low Current. See also parameter
group 6-0* Analog I/O Mode.
Missing phase on the supply side or too high voltage
X X X imbalance. Check the supply voltage. See
parameter 14-12 Function at Mains Imbalance.
X X – Intermediate circuit voltage exceeds the limit.
Intermediate circuit voltage drops below voltage warning
X X –
low-limit.
X X – More than 100% load for a long time.
Motor is too hot due to more than 100% load for a long
X X –
time. See parameter 1-90 Motor Thermal Protection.
Thermistor or thermistor connection is disconnected. See
X X –
parameter 1-90 Motor Thermal Protection.
X X X Inverter peak current limit is exceeded.
– X X Discharge from output phases to ground.
– X X Short circuit in motor or on motor terminals.
No communication to frequency converter. See parameter
X X –
group 8-0* General Settings.
The heat sink cooling fan is not working (only on 400 V, 30–
X X –
90 kW units).
Motor phase U is missing. Check the phase. See
– X X
parameter 4-58 Missing Motor Phase Function.
Motor phase V is missing. Check the phase. See
– X X
parameter 4-58 Missing Motor Phase Function.
Motor phase W is missing. Check the phase. See
– X X
parameter 4-58 Missing Motor Phase Function.
– X X Contact the local Danfoss supplier.
Discharge from output phases to ground, using the value of
– X X
parameter 15-31 Alarm Log Value if possible.
– X X
Control voltage is low. Contact the local Danfoss supplier.
X X X 24 V DC supply may be overloaded.
– X –
Contact the local Danfoss supplier.
The setting of motor voltage, motor current, and motor
– X –
power is wrong. Check the settings.
– X – The motor current is too low. Check the settings.
– X – The motor is too big to perform AMA.
– X – The motor is too small to perform AMA.
The parameter values found from the motor are outside the
– X –
acceptable range.
– X – The AMA has been interrupted by the user.
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