Danfoss VLT Midi Drive FC 280, Руководство по эксплуатации

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8.4 List of Warnings and Alarms
An (X) marked in Table 8.1 indicates that the warning or alarm has occurred.
No. Description Warning Alarm Trip lock Cause
2 Live zero error X X –
Signal on terminal 53 or 54 is less than 50% of value set
in
parameter 6-10 Terminal 53 Low Voltage ,
parameter 6-20 Terminal 54 Low Voltage , and
parameter 6-22 Terminal 54 Low Current .
3 No motor X – –
No motor has been connected to the output of the
frequency converter.
4
Mains phase loss
1) X X X
Missing phase on the supply side, or the voltage
imbalance is too high. Check the supply voltage.
7
DC overvoltage 1) X X –
DC-link voltage exceeds limit.
8
DC undervoltage
1) X X –
DC-link voltage drops below the voltage warning low
limit.
9 Inverter overloaded X X – More than 100% load for too long.
10 Motor ETR overtemperature X X –
Motor is too hot due to more than 100% load for too
long.
11
Motor thermistor overtem-
perature
X X –
Thermistor or thermistor connection is disconnected, or
the motor is too hot.
12 Torque limit X X –
Torque exceeds value set in either parameter 4-16 Torque
Limit Motor Mode or parameter 4-17 Torque Limit Generator
Mode .
13 Overcurrent
X X X
Inverter peak current limit is exceeded. If this alarm
occurs on power-up, check whether power cables are
mistakenly connected to the motor terminals.
14 Ground fault – X X Discharge from output phases to ground.
16 Short circuit – X X Short circuit in motor or on motor terminals.
17 Control word timeout X X No communication to frequency converter.
25 Brake resistor short-circuited – X X
Brake resistor is short-circuited, thus the brake function is
disconnected.
26 Brake overload X X –
The power transmitted to the brake resistor over the last
120 s exceeds the limit. Possible corrections: Decrease
brake energy via lower speed or longer ramp time.
27
Brake IGBT/Brake chopper short-
circuited
– X X
Brake transistor is short-circuited, thus brake function is
disconnected.
28 Brake check – X Brake resistor is not connected/working.
30 U phase loss – X X Motor phase U is missing. Check the phase.
31 V phase loss – X X Motor phase V is missing. Check the phase.
32 W phase loss – X X Motor phase W is missing. Check the phase.
34 Fieldbus fault X X – PROFIBUS communication issues have occurred.
35 Option fault – X – Fieldbus detects internal faults.
36 Mains failure X X –
This warning/alarm is only active if the supply voltage to
the frequency converter is less than the value set in
parameter 14-11 Mains Voltage at Mains Fault , and
parameter 14-10 Mains Failure is NOT set to [0] No
Function .
38 Internal fault – X X Contact the local Danfoss supplier.
40 Overload T27 X – –
Check the load connected to terminal 27 or remove
short-circuit connection.
46 Gate drive voltage fault X X –
47 24 V supply low X X X 24 V DC may be overloaded.
51 AMA check U
nom
and I
nom
– X – Wrong setting for motor voltage and/or motor current.
52 AMA low I
nom
– X – Motor current is too low. Check the settings.
Maintenance, Diagnostics, a... Operating Instructions
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