ALARM 31, Motor phase V missing:
Motor phase V between the frequency converter and the motor is missing.
Turn off the frequency converter and check motor phase V.
ALARM 32, Motor phase W missing:
Motor phase W between the frequency converter and the motor is miss-
ing.
Turn off the frequency converter and check motor phase W.
ALARM 33, Inrush fault:
Too many powerups have occured within a short time period. See the
chapter
General Specifications
for the allowed number of power-ups
within one minute.
WARNING/ALARM 34, Fieldbus communication fault:
The fieldbus on the communication option card is not working.
WARNING/ALARM 36, Mains failure:
This warning/alarm is only active if the supply voltage to the frequency
converter is lost and parameter 14-10 is NOT set to OFF. Possible cor-
rection: check the fuses to the frequency converter
WARNING/ALARM 37, Phase Imbalance:
There is a current imbalance between the power units.
ALARM 38, Internal fault:
Contact your local Danfoss supplier.
ALARM 39, Heatsink Sensor:
No feedback from the heatsink sensor.
WARNING 40, Overload of Digital Output Terminal 27
Check the load connected to terminal 27 or remove short-circuit connec-
tion. Check parameters 5-00 and 5-01.
WARNING 41, Overload of Digital Output Terminal 29:
Check the load connected to terminal 29 or remove short-circuit connec-
tion. Check parameters 5-00 and 5-02.
WARNING 42, Overload of Digital Output On X30/6 :
Check the load connected to X30/6 or remove short-circuit connection.
Check parameter 5-32.
WARNING 42, Overload of Digital Output On X30/7 :
Check the load connected to X30/7 or remove short-circuit connection.
Check parameter 5-33.
ALARM 46, Pwr. card supply:
The supply on the power card is out of range.
WARNING 47, 24 V supply low:
The external 24 V DC backup power supply may be overloaded, otherwise
contact your Danfoss supplier.
ALARM 48, 1.8 V supply low:
Contact your Danfoss supplier.
WARNING 49, Speed limit:
The speed has been limited by range in par. 4-11
ALARM 50, AMA calibration failed:
Contact your Danfoss supplier.
ALARM 51, AMA check Unom and Inom:
The setting of motor voltage, motor current, and motor power is pre-
sumably wrong. Check the settings.
ALARM 52, AMA low Inom:
The motor current is too low. Check the settings.
ALARM 53, AMA motor too big:
The motor is too big for the AMA to be carried out.
ALARM 54, AMA motor too small:
The motor is too small for the AMA to be carried out.
ALARM 55, AMA par. out of range:
The par. values found from the motor are outside acceptable range.
ALARM 56, AMA interrupted by user:
The AMA has been interrupted by the user.
ALARM 57, AMA timeout:
Try to start the AMA again a number of times, until the AMA is carried
out. Please note that repeated runs may heat the motor to a level where
the resistance Rs and Rr are increased. In most cases, however, this is
not critical.
WARNING/ALARM 58, AMA internal fault:
Contact your Danfoss supplier.
WARNING 59, Current limit:
The current is higher than the value in par. 4-18 Current
Limit
.
WARNING 60, External Interlock:
External Interlock has been activated. To resume normal operation, apply
24 VDC to the terminal programmed for External Interlock and reset the
frequency converter (via Bus, Digital I/O or by pressing [Reset]).
WARNING/ALARM 61, Tracking Error:
Tracking error. Contact your supplier.
WARNING 62, Output Frequency at Maximum Limit:
The output frequency is limited by the value set in par. 4-19 Max
Output
Frequency
WARNING 64, Voltage Limit:
The load and speed combination demands a motor voltage higher than
the actual DC link voltage.
WARNING/ALARM/TRIP 65, Control Card Over Temperature:
Control card over temperature: The cut-out temperature of the control
card is 80° C.
WARNING 66, Heatsink Temperature Low:
The heat sink temperature is measured as 0° C. This could indicate that
the temperature sensor is defective and thus the fan speed is increased
to the maximum in case the power part or control card is very hot.
If the temperature is below 15
°
C the warning will be present.
ALARM 67, Option Configuration has Changed:
One or more options has either been added or removed since the last
power-down.
ALARM 68, Safe Stop:
Safe Stop has been activated. To resume normal operation, apply 24 VDC
to terminal 37 then send a Reset signal (via Bus, Digital I/O or by pressing
[Reset]).
ALARM 69, Pwr. Card Temp:
Power card over temperature.
ALARM 70, Illegal Frequency Converter Configuration:
Actual combination of control board and power board is illegal.
ALARM 90, Feedback Mon.:
ALARM 91, Analogue Input 54 Wrong Settings:
Switch S202 has to be set in position OFF (voltage input), when a KTY
sensor is connected to the analogue input terminal 54.
VLT
®
AQUA Drive
Operating Instructions
9. Troubleshooting
MG.20.M5.02 - VLT
®
is a registered Danfoss trademark
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9