Danfoss VLT AQUA Drive FC 202 Design Manual page 202

General Specifications and ...
WARNING 49, Speed limit
When the speed is not within the specified range in
4-11 Motor Speed Low Limit [RPM] and 4-13 Motor Speed
High Limit [RPM], the frequency converter shows a warning.
When the speed is below the specified limit in 1-86 Trip
Speed Low [RPM] (except when starting or stopping) the
frequency converter trips.
ALARM 50, AMA calibration failed
Contact the Danfoss supplier or service department.
ALARM 51, AMA check U
The settings for motor voltage, motor current, and motor
power are wrong. Check the settings in parameters 1-20 to
1-25.
ALARM 52, AMA low I
The motor current is too low. Check the settings.
ALARM 53, AMA motor too big
The motor is too big for the AMA to operate.
ALARM 54, AMA motor too small
The motor is too small for the AMA to operate.
8 8
ALARM 55, AMA Parameter out of range
The parameter values of the motor are outside of the
acceptable range. AMA will not run.
ALARM 56, AMA interrupted by user
The user has interrupted the AMA.
ALARM 57, AMA internal fault
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 4-18 Current Limit.
Ensure that motor data in parameters 1-20 through 1-25
are set correctly. Increase the current limit, if necessary. Be
sure 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 frequency converter. An external interlock has
commanded the frequency converter to trip. Clear the
external fault condition. To resume normal operation,
apply 24 V DC 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
4-19 Max Output Frequency. 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 clears 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.
200
Design Guide
and I
nom nom
nom
Danfoss A/S © Rev. 06/2014 All rights reserved.
Troubleshooting
•
Check that the ambient operating temperature is
within limits
•
Check for clogged filters
•
Check fan operation
•
Check the control card
WARNING 66, Heat sink 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. 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.
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
Loss of the 24 V DC signal on terminal 37 has caused the
unit to trip. To resume normal operation, apply 24 V DC to
terminal 37 and reset the unit.
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 frequency converter configuration
The control card and power card are incompatible. Contact
the 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 torque off
Safe torque off has been activated from the MCB 112 PTC
thermistor card (motor too warm). Normal operation can
resume 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 is sent (via
Bus, Digital I/O, or by pressing [RESET]).
ALARM 72, Dangerous failure
Safe torque off with trip lock. The dangerous failure alarm
is issued if the combination of safe torque off commands
is unexpected. This occurs if the MCB 112 VLT PTC
Thermistor Card enables X44/10 but safe torque off is not
enabled. Furthermore, if the MCB 112 is the only device
using safe torque off (specified through selection [4] or [5]
MG20Z202