1.6 Troubleshooting
1.6.1 Warnings and Alarms
No. Description Warning Alarm Trip
Lock
Error Cause of Problem
2 Live zero error X X Signal on terminal 53 or 60 is less than 50% of value set in
6-10 Terminal 53 Low Voltage, 6-12 Terminal 53 Low Currentand
6-22 Terminal 54 Low Current.
4
Mains phase loss
1
)
X X X Missing phase on the supply side, or a voltage imbalance that is too
high. Check supply voltage.
7
DC overvoltage
1
)
X X Intermediate circuit voltage exceeds the limit.
8
DC undervoltage
1
)
X X Intermediate circuit voltage drops below the “voltage warning low”
limit.
9 overloaded X X More than 100% load for too long.
10 Motor overtemperature X X Motor is too hot due to more than 100% load for too long.
11 Motor thermistor overtemp. X X The thermistor or the thermistor connection is disconnected.
12 Torque limit X
Torque exceeds value set in either parameter 4-16 Torque Limit
Motor Mode or 4-17Torque Limit Generator Mode.
13 Overcurrent X X X current limit is exceeded.
14 Ground fault X X X Discharge from output phases to ground.
16 Short circuit X X Short-circuit in the motor or on the motor terminals.
17 Control word timeout X X No communication to the adjustable frequency drive.
25 Brake resistor short-circuited X X Brake resistor is short-circuited, thus the brake function is discon-
nected.
27 Brake chopper short-circuited X X Brake transistor is short-circuited, thus the brake function is discon-
nected.
28 Brake check X Brake resistor is not connected/working
29 Power board overtemp X X X Heatsink cut-out temperature has been reached.
30 Motor phase U missing X X Motor phase U is missing. Check the phase.
31 Motor phase V missing X X Motor phase V is missing. Check the phase.
32 Motor phase W missing X X Motor phase W is missing. Check the phase.
38 Internal fault X X Contact local Danfoss supplier.
44 Ground fault X X Discharge from output phases to ground.
47 Control Voltage Fault X X 24 V DC may be overloaded.
51 check U
nom
and I
nom
X Wrong setting for motor voltage and/or motor current.
52 low I
nom
X Motor current is too low. Check settings.
59 Current limit X overload.
63 Mechanical Brake Low X Actual motor current has not exceeded the “release brake” current
in the “start delay” time window.
80 X
84 The connection between drive
and LCP is lost
X No communication between LCP and adjustable frequency drive
85 Button disabled X
See parameter group 0-4* 0-4* LCP
86 Copy fail X An error occurred while copying from adjustable frequency drive to
LCP or vice versa.
87 LCP data invalid X Occurs when copying from LCP if the LCP contains erroneous data -
or if no data was uploaded to the LCP.
88 LCP data not compatible X Occurs when copying from LCP if data are moved between
adjustable frequency drives with major differences in software
versions.
89 Parameter read-only X Occurs when trying to write to a read-only parameter.
90 Parameter database busy X LCP and RS485 connection are trying to update parameters simulta-
neously.
91 Parameter value is not valid in this
mode
X Occurs when trying to write an illegal value to a parameter.
92 Parameter value exceeds the
min/max limits
X Occurs when trying to set a value outside the range.
nw
run
Not While RUNning
X Parameter can only be changed when the motor is stopped.
Err. An incorrect password was
entered
X Occurs when using an incorrect password for changing a password-
protected parameter.
1)
These faults may be caused by line power distortions. Installing a Danfoss line filter may rectify this problem.
Table 1.6 Warnings and Alarms Code List
Quick Guide
Quick Guide
MG02B922 Danfoss A/S © Rev. 2014-02-27 All rights reserved. 15
1
1
To Next Page
Loading...
Need help?
General
