List Of Warnings And Alarms - Danfoss VLT Midi Drive FC 280 Instruction Manual

Maintenance, Diagnostics an...

8.4 List of Warnings and Alarms

An (X) marked in Table 8.1 indicates that the warning or alarm has occurred.
No. Description
2 Live zero error
3 No motor
4 Mains phase loss1)
7
DC overvoltage
8
DC undervoltage
9 Inverter overloaded
10 Motor ETR overtemperature
8 8
Motor thermistor overtem-
11
perature
12 Torque limit
13 Overcurrent
14 Ground fault
16 Short circuit
17 Control word timeout
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
44
®
VLT Midi Drive FC 280
Warning
X
X
X
1) X
1) X
X
X
X
X
X
X
X
–
X
–
–
–
–
–
X
–
X
–
X
Danfoss A/S © 11/2015 All rights reserved.
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 6-20 Terminal 54 Low Voltage and
parameter 6-22 Terminal 54 Low Current.
No motor has been connected to the output of the
– –
adjustable frequency drive.
Missing phase on supply side, or the voltage imbalance is
X X
too high. Check the supply voltage.
X – DC link voltage exceeds limit.
DC link voltage drops below the voltage warning low
X –
limit.
X – More than 100% load for too long.
Motor is too hot due to more than 100% load for too
X –
long.
Thermistor or thermistor connection is disconnected, or
X –
the motor is too hot.
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. If this alarm
X X occurs on power-up, check whether power cables are
mistakenly connected to the motor terminals.
X X Discharge from output phases to ground.
X X Short circuit in motor or on motor terminals.
X No communication to the adjustable frequency drive.
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 the brake function
X X
is 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 – Serial communication bus detects internal errors.
This warning/alarm is only active if the supply voltage to
the adjustable frequency drive is less than the value set
X – in parameter 14-11 Mains Voltage at Mains Fault, 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.
MG07A122