Danfoss VLT AutomationDrive FC 302 Instruction Manual page 59

Maintenance, Diagnostics an...
ALARM 52, AMA low I
nom
The motor current is too low. Check the settings in
parameter 4-18 Current Limit.
ALARM 53, AMA motor too big
The motor is too large 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. AMA cannot run.
ALARM 56, AMA interrupted by user
The user has interrupted AMA.
ALARM 57, AMA internal fault
Try to restart AMA. Repeated restarts can overheat the
motor.
ALARM 58, AMA Internal fault
Contact the Danfoss supplier.
WARNING 59, Current limit
The current is higher than the value in
parameter 4-18 Current Limit. Ensure that motor data in
parameters 1–20 to 1–25 are set correctly. Increase the
current limit if necessary. Ensure that the system can
operate safely at a higher limit.
WARNING 60, External interlock
A digital input signal is indicating a fault condition
externally to the adjustable frequency drive. An external
interlock has commanded the adjustable frequency drive
to trip. Clear the external fault condition. To resume
normal operation, apply 24 V DC to the terminal
programmed for external interlock. Reset the adjustable
frequency drive.
WARNING/ALARM 61, Feedback error
An error between the calculated speed and speed
measurement from the feedback device. The function
Warning/Alarm/Disabling setting is in parameter 4-30 Motor
Feedback Loss Function. Accepted error setting in
parameter 4-31 Motor Feedback Speed Error and the allowed
time the error occur setting in parameter 4-32 Motor
Feedback Loss Timeout. During a commissioning procedure
the function may be effective.
WARNING 62, Output frequency at maximum limit
The output frequency has reached the value set in
parameter 4-19 Max Output Frequency. Check the
application for possible causes. Possibly increase the
output frequency limit. Be sure that the system can
operate safely at a higher output frequency. The warning
clears 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.
MG34U422
Instruction Manual
ALARM 64, Voltage Limit
The load and speed combination demands a motor
voltage higher than the actual DC link voltage.
WARNING/ALARM 65, Control card overtemperature
The cut-out temperature of the control card is 176°F
[80°C].
Troubleshooting
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WARNING 66, Heatsink temperature low
The adjustable frequency drive 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 adjustable
frequency drive whenever the motor is stopped by setting
parameter 2-00 DC Hold/Preheat Current at 5% and
parameter 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 unit.
ALARM 68, Safe Stop activated
STO has been activated. To resume normal operation,
apply 24 V DC to terminal 37, then send a reset signal (via
bus, digital I/O, or by pressing [Reset]).
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
Troubleshooting
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ALARM 70, Illegal FC configuration
The control card and power card are incompatible. To
check compatibility, contact the Danfoss supplier with the
type code of the unit from the nameplate and the part
numbers of the cards.
ALARM 71, PTC 1 safe stop
STO has been activated from the VLT
MCB 112 (motor too warm). Normal operation can be
resumed when the MCB 112 applies 24 V DC to terminal
37 again (when the motor temperature reaches an
acceptable level) and when the digital input from the MCB
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Check that the ambient operating temperature is
within the limits.
Check for clogged filters.
Check the fan operation.
Check the control card.
Check that the ambient operating temperature is
within limits.
Check for clogged filters.
Check fan operation.
Check the power card.
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PTC Thermistor Card
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