Danfoss VLT AutomationDrive FC 360 Programming Manual page 152

Troubleshooting
Numb
Description
er
2 Live zero error
3 No motor
4
Mains phase loss
7 DC overvoltage
8
DC undervoltage
6 6
9 Inverter overloaded
10 Motor ETR overtemperature
Motor thermistor overtem-
11
perature
12 Torque limit
13 Overcurrent
14 Earth fault
16 Short circuit
17 Control word timeout
18 Start failed
25 Brake resistor short-circuited
26 Brake overload
Brake IGBT/Brake chopper short-
27
circuited
28 Brake check
30 U phase loss
31 V phase loss
32 W phase loss
34 Fieldbus fault
35 Option fault
36 Mains failure
38 Internal fault
40 Overload T27
41 Overload T29
46 Gate drive voltage fault
150
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VLT AutomationDrive FC 360
Warning
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Alarm Trip lock Cause
Signal on terminal 53 or 54 is less than 50% of value set
in parameter 6-10 Terminal 53 Low Voltage,
X – parameter 6-12 Terminal 53 Low Current,
parameter 6-20 Terminal 54 Low Voltage, and
parameter 6-22 Terminal 54 Low Current.
No motor has been connected to the output of the
– –
frequency converter, or 1 motor phase is missing.
Missing phase on supply side, or the voltage imbalance is
X X
too high. Check the supply voltage.
X – Intermediate circuit voltage exceeds limit.
Intermediate circuit voltage drops below the voltage
X –
warning low limit.
X – More than 100% load for too long.
Motor is too hot due to more than 100% load for too
X –
long.
X – Thermistor or thermistor connection is disconnected.
Torque exceeds value set in either parameter 4-16 Torque
X – Limit Motor Mode or parameter 4-17 Torque Limit Generator
Mode.
Inverter peak current limit is exceeded. For J1–J6 units, if
X X this alarm occurs on power-up, check whether power
cables are mistakenly connected to the motor terminals.
X X Discharge from output phases to ground.
Short circuit in motor or on motor terminals. For J7 units,
X X if this alarm occurs on power-up, check whether power
cables are mistakenly connected to the motor terminals.
X – No communication to frequency converter.
X – –
Brake resistor is short-circuited, thus the brake function is
X X
disconnected.
The power transmitted to the brake resistor over the last
X – 120 s exceeds the limit. Possible corrections: Decrease
brake energy via lower speed or longer ramp time.
Brake transistor is short-circuited, thus brake function is
X X
disconnected.
X – Brake resistor is not connected/working.
X X Motor phase U is missing. Check the phase.
X X Motor phase V is missing. Check the phase.
X X Motor phase W is missing. Check the phase.
X – PROFIBUS communication issues have occurred.
X – Fieldbus or option B detects internal faults.
This warning/alarm is only active if the supply voltage to
the frequency converter is less than the value set in
X – parameter 14-11 Mains Fault Voltage Level, and
parameter 14-10 Mains Failure is NOT set to [0] No
Function.
X X Contact the local Danfoss supplier.
Check the load connected to terminal 27 or remove
– –
short-circuit connection.
Check the load connected to terminal 29 or remove
– –
short-circuit connection.
X X –
MG06C702