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 6-12 Terminal 53 Low Current
,
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 supply side, or the voltage imbalance is
too high. Check supply voltage.
7
DC overvoltage
1)
X
X
DC-link voltage exceeds the upper limit.
8
DC undervoltage
1)
X
X
DC-link voltage drops below the lower limit.
9
Frequency converter
overloaded
X
X
Normal overload: More than 110% of nominal load for 1
minute; High overload: More than 150% of nominal load for
1 minute.
10
Motor ETR overtemperature
X
X
Motor is too hot due to overload.
11
Motor thermistor overtem-
perature
X
X
Thermistor is disconnected, or the frequency converter is
overloaded.
12
Torque limit
X
X
Torque exceeds value set in either
or
parameter 4-17 Torque Limit Generator
.
13
Overcurrent
X
X
X
The peak current limit is exceeded.
14
Ground fault
X
X
X
Discharge from output phases to ground.
16
Short circuit
X
X
Short circuit in motor or on motor terminals.
17
Control word time-out
X
X
No communication to frequency converter.
25
Brake resistor short-circuited
X
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
X
Brake transistor is short-circuited, thus the brake function is
disconnected.
28
Brake check
X
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 or option B detects internal faults.
36
Mains failure
X
X
This warning/alarm is only active if the supply voltage to the
frequency converter is lost, and
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.
41
Overload T29
X
Check the load connected to terminal 29 or remove short-
circuit connection.
46
Gate drive voltage fault
X
X
The supply on the power card is out of range. Check the
power card.
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 settings.
53
AMA big motor
X
The motor is too big for the AMA to operate.
54
AMA small motor
X
The motor is too small for the AMA to operate.
Troubleshooting
Programming Guide
MG06C602
Danfoss A/S © 7/2015 All rights reserved.
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