ALARM 57, AMA internal fault
Try to restart AMA again a number of times, until the AMA
is carried out. 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.
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
that the system can operate safely at a higher limit.
WARNING 60, External interlock
External interlock has been activated. To resume normal
operation, apply 24 V DC to the terminal programmed for
external interlock and reset the frequency converter (via
serial communication, digital I/O, or by pressing [Reset]).
WARNING/ALARM 61, Tracking error
An error between calculated motor speed and speed
measurement from feedback device. The function Warning/
Alarm/Disable is set 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.
WARNING 62, Output frequency at maximum limit
The output frequency is higher than the value set in
4-19 Max Output Frequency
.
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 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
Troubleshooting
The heatsink temperature measured as 0
°
C could indicate
that the temperature sensor is defective, causing the fan
speed to increase to the maximum. If the sensor wire
between the IGBT and the gate drive card is disconnected,
this warning would result. Also, check the IGBT thermal
sensor.
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
Safe stop 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 the reset key).
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
Troubleshooting
Check the operation of the door fans.
Check that the filters for the door fans are not
blocked.
Check that the gland plate is properly installed
on IP21/IP 54 (NEMA 1/12) frequency converters.
ALARM 70, Illegal frequency converter configuration
The control card and power card are incompatible. Contact
your supplier with the type code of the unit from the
nameplate and the part numbers of the cards to check
compatibility.
ALARM 71, PTC 1 safe stop
Safe Stop has been activated from the MCB 112 PTC
Thermistor Card (motor too warm). Normal operation can
be resumed when the MCB 112 applies 24 V DC to T-37
again (when the motor temperature reaches an acceptable
level) and when the Digital Input from the MCB 112 is
deactivated. When that happens, a reset signal must be is
be sent (via Bus, Digital I/O, or by pressing [Reset]). Note
that if automatic restart is enabled, the motor may start
when the fault is cleared.
ALARM 72, Dangerous failure
Safe Stop with Trip Lock. Unexpected signal levels on safe
stop and digital input from the MCB 112 PTC thermistor
card.
WARNING 73, Safe stop auto restart
Safe stopped. With automatic restart enabled, the motor
may start when the fault is cleared.
WARNING 76, Power unit setup
The required number of power units does not match the
detected number of active power units.
Warnings and Alarms
VLT® Automation VT Drive FC 322 D-Frame Instruction Manual
8-10
MG21E122 - VLT® is a registered Danfoss trademark
8
8
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20776-Danfoss-131X8139-VLT-Automation-VT-Drive-VFD-FC322-230V-20-HP.aspx
