Danfoss VLT AutomationDrive FC 300 Programming Manual page 213

Troubleshooting
WARNING 49, Speed limit
When the speed is not within the specified range in
4-11 Motor Speed Low Limit [RPM] and 4-13 Motor Speed High
Limit [RPM], the frequency converter will show a warning.
When the speed is below the specified limit in 1-86 Trip
Speed Low [RPM] (except when starting or stopping) the
frequency converter will trip.
ALARM 50, AMA calibration failed
Contact yourDanfoss supplier or DanfossService Department.
ALARM 51, AMA check U
The settings for motor voltage, motor current, and motor
5 5
power are wrong. Check the settings in parameters 1-20 to
1-25.
ALARM 52, AMA low I
The motor current is too low. Check the setting in
4-18 Current Limit.
ALARM 53, AMA motor too big
The motor is too big for the AMA to operate.
ALARM 54, AMA motor too small
The motor is too small for the AMA to operate.
ALARM 55, AMA Parameter out of range
The parameter values of the motor are outside of the
acceptable range. AMAwill not run.
ALARM 56, AMA interrupted by user
The AMA has been interrupted by the user.
ALARM 57, AMA timeout
Try to restart AMA again. Repeated restarts may over heat
the motor.
ALARM 58, AMA internal fault
Contact your Danfoss supplier.
WARNING 59, Current limit
The current is higher than the value in 4-18 Current Limit.
Ensure that Motor data in parameters 1-20 through 1-25 are
set correctly. Possibly increase the current limit. Be sure the
system can operate safely at a higher limit.
ALARM 60, External interlock
A digital input signal is indicating a fault condition external
to the frequency converter. An external interlock has
commanded the frequency converter to trip. Clear the
external fault condition. To resume normal operation, apply
24V DC to the terminal programmed for external interlock.
Reset the frequency converter.
WARNING/ALARM 61, Feedback error
An error between calculated speed and speed measurement
from feedback device. The function Warning/Alarm/
Disabling setting is in 4-30 Motor Feedback Loss Function.
Accepted error setting in 4-31 Motor Feedback Speed Error
and the allowed time the error occur setting in 4-32 Motor
Feedback Loss Timeout. During a commissioning procedure
the function may be effective.
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FC 300 Programming Guide
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MG.33.MB.02 - VLT
WARNING 62, Output frequency at maximum limit
The output frequency has reached the value set in 4-19 Max
Output Frequency. Check the application to determine the
cause. Possibly increase the output frequency limit. Be sure
the system can operate safely at a higher output frequency.
The warning will clear when the output drops below the
maximum limit.
ALARM 63, Mechanical brake low
The actual motor current has not exceeded the "release
brake" current within the "Start delay" time window.
WARNING/ALARM 65, Control card over temperature
The cutout temperature of the control card is 80° C.
Troubleshooting
Check that the ambient operating temperature is
within limits.
Check for clogged filters.
Check fan operation.
Check the control card.
WARNING 66, Heatsink temperature low
The frequency converter is too cold to operate. This warning
is based on the temperature sensor in the IGBT module.
Increase the ambient temperature of the unit. Also, a trickle
amount of current can be supplied to the frequency
converter whenever the motor is stopped by setting 2-00 DC
Hold/Preheat Current at 5% and 1-80 Function at Stop.
ALARM 67, Option module configuration has changed
One or more options have either been added or removed
since the last power down. Check that the configuration
change is intentional and reset the frequency converter.
ALARM 68, Safe stop activated
Loss of the 24V DC signal on terminal 37 has caused the
frequency converter to trip. To resume normal operation,
apply 24V DC to terminal 37 and reset the frequency
converter.
ALARM 69, Power card temperature
The temperature sensor on the power card is either too hot
or too cold.
Troubleshooting
Check that the ambient operating temperature is
within limits.
Check for clogged filters.
Check fan operation.
Check the power card.
ALARM 70, Illegal FC configuration
The control card and power card are incompatible. Contact
your supplier with the typecode of the unit from the
nameplate and the part numbers of the cards to check
compatibility.
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