Danfoss VLT AutomationDrive FC 361 Programming Manual page 190

Troubleshooting
WARNING 59, Current limit
The current is higher than the value in
parameter 4-18 Current Limit. Ensure that the motor data in
parameters 1-20 to 1-25 is 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 indicates a fault condition external to
the drive. An external interlock has commanded the drive
to trip. Clear the external fault condition. To resume
normal operation, apply 24 V DC to the terminal
programmed for external interlock and reset the drive.
WARNING/ALARM 61, Feedback error
An error between calculated speed and speed
6 6
measurement from feedback device.
Troubleshooting
•
Check the settings for warning/alarm/disabling in
parameter 4-30 Motor Feedback Loss Function.
•
Set the tolerable error in parameter 4-31 Motor
Feedback Speed Error.
•
Set the tolerable feedback loss time in
parameter 4-32 Motor Feedback Loss Timeout.
WARNING 62, Output frequency at maximum limit
If the output frequency reaches the value set in
parameter 4-19 Max Output Frequency, the drive issues a
warning. The warning ceases when the output drops
below the maximum limit. If the drive is unable to limit
the frequency, it trips and issues an alarm.
Troubleshooting
•
Check the application for possible causes.
•
Increase the output frequency limit. Ensure that
the system can operate safely at a higher output
frequency.
ALARM 63, Mechanical brake low
The actual motor current has not exceeded the release
brake current within the start delay time window.
WARNING 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 85 °C
(185 °F).
Troubleshooting
•
Check that the ambient operating temperature is
within the limits.
•
Check for clogged filters.
•
Check the fan operation.
•
Check the control card.
WARNING 66, Heat sink temperature low
The 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
188
VLT® AutomationDrive FC 361
current can be supplied to the drive whenever the motor
is stopped by setting parameter 2-00 DC Hold/Preheat
Current to 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 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 from the unit nameplate and the part numbers
of the cards.
WARNING 76, Power unit setup
The required number of power units does not match the
detected number of active power units. When replacing an
enclosure size F module, this warning occurs if the power-
specific data in the module power card does not match
the rest of the drive. If the power card connection is lost,
the unit also triggers this warning.
Troubleshooting
•
•
WARNING 77, Reduced power mode
This warning indicates that the drive is operating in
reduced power mode (that is, less than the allowed
number of inverter sections). This warning is generated on
power cycle when the drive is set to run with fewer
inverters and remains on.
ALARM 78, Tracking error
The difference between setpoint value and actual value
exceeds the value in parameter 4-35 Tracking Error.
Troubleshooting
•
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Danfoss A/S © 03/2019 All rights reserved.
Check that the ambient operating temperature is
within limits.
Check for clogged filters.
Check fan operation.
Check the power card.
Confirm that the spare part and its power card
are the correct part number.
Ensure that the 44-pin cables between the MDCIC
and power cards are mounted properly.
Disable the function or select an alarm/warning
in parameter 4-34 Tracking Error Function.
Investigate the mechanics around the load and
motor. Check feedback connections from motor
encoder to drive.
Select motor feedback function in
parameter 4-30 Motor Feedback Loss Function.
MG06J202