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
.
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 controller. An external interlock has
commanded the frequency controller to trip. Clear the
external fault condition. To resume normal operation, apply
24 VDC to the terminal programmed for external interlock.
Reset the frequency converter.
WARNING 62, Output frequency at maximum limit
The output frequency has reached the value set in
. 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.
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
controller whenever the motor is stopped by setting
at 5% and
.
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 controller.
ALARM 68, Safe stop activated
Loss of the 24 VDC signal on terminal 37 has caused the
frequency controller to trip. To resume normal operation,
apply 24 VDC to terminal 37 and reset the frequency
controller.
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.
ALARM 80, Drive initialised to default value
Parameter settings are initialised to default settings after a
manual reset. Reset the unit to clear the alarm.
ALARM 92, No flow
A no-flow condition has been detected in the system.
is set for alarm. Troubleshoot the
system and reset the frequency converter after the fault has
been cleared.
ALARM 93, Dry pump
A no-flow condition in the system with the frequency
converter operating at high speed may indicate a dry pump.
is set for alarm. Troubleshoot the
system and reset the frequency converter after the fault has
been cleared.
ALARM 94, End of curve
Feedback is lower than the set point. This may indicate
leakage in the system.
is set for
alarm. Troubleshoot the system and reset the frequency
converter after the fault has been cleared.
ALARM 95, Broken belt
Torque is below the torque level set for no load, indicating a
broken belt.
is set for alarm.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
ALARM 96, Start delayed
Motor start has been delayed due to short-cycle protection.
is enabled. Troubleshoot the
system and reset the frequency converter after the fault has
been cleared.
WARNING 97, Stop delayed
Stopping the motor has been delayed due to short cycle
protection.
is enabled.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
Troubleshooting
VLT
®
HVAC Drive Programming Guide
MG.11.CB.02 - VLT
®
is a registered Danfoss trademark
195
4
4
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