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 adjustable frequency drive
(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 176° F
[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 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
2-00 DC Hold/Preheat Current
at 5% and
1-80 Function at
Stop
Troubleshooting
The heatsink temperature measured as 32° F [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 discon-
nected, 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 70, Illegal adjustable frequency drive 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 set-up
The required number of power units does not match the
detected number of active power units.
Troubleshooting:
When replacing an F-frame module, this will occur if the
power specific data in the module power card does not
match the rest of the adjustable frequency drive. Confirm
the spare part and its power card are the correct part
number.
WARNING 77, Reduced power mode
This warning indicates that the adjustable frequency drive
is operating in reduced power mode (i.e., less than the
allowed number of inverter sections). This warning will be
generated on power cycle when the adjustable frequency
drive is set to run with fewer inverters and will remain on.
ALARM 79, Illegal power section configuration
The scaling card is the incorrect part number or not
installed. Also MK102 connector on the power card could
not be installed.
ALARM 80, Drive initialized to default value
Parameter settings are initialized to default settings after a
manual reset. Reset the unit to clear the alarm.
ALARM 81, CSIV corrupt
CSIV file has syntax errors.
Warnings and Alarms
VLT
®
Automation Drive D-Frame
Instruction Manual
8-10
MG34U222 - VLT
®
is a registered Danfoss trademark
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