Danfoss FC 102 Operating Instructions Manual page 73

Warnings and Alarms
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 control card has reached its trip temperature of 75 °C.
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. 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
•
Check the temperature sensor.
•
Check the sensor wire between the IGBT and the
gate drive card.
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 Torque Off has been activated.
Troubleshooting
•
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
•
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/IP54 (NEMA 1/12) frequency converters.
ALARM 70, Illegal FC configuration
The control card and power card are incompatible.
Troubleshooting
•
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 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 T37
again (when the motor temperature reaches an acceptable
level) and when the Digital Input from the MCB 112 is
MG16D302
Operating Instructions
deactivated. When that happens, a reset signal must be is
be sent (via Bus, Digital I/O, or by pressing [Reset]).
NOTICE
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. When replacing an
F-frame module, this occurs if the power specific data in
the module power card does not match the rest of the
frequency converter.
Troubleshooting
•
WARNING 77, Reduced power mode
This warning indicates that the frequency converter is
operating in reduced power mode (i.e. less than the
allowed number of inverter sections). This warning is
generated on power cycle when the frequency converter is
set to run with fewer inverters and remains on.
ALARM 79, Illegal power section configuration
The scaling card is the incorrect part number or not
installed. Also, the MK102 connector on the power card
could not be installed.
ALARM 80, Drive initialised to default value
Parameter settings are initialised to default settings after a
manual reset.
Troubleshooting
•
ALARM 81, CSIV corrupt
CSIV (Customer Specific Initialisation Values) file has syntax
errors.
ALARM 82, CSIV parameter error
CSIV (Customer Specific Initialisation Values) failed to
initialise a parameter.
ALARM 85, Dang fail PB
PROFIBUS/PROFIsafe error.
WARNING/ALARM 104, Mixing fan fault
The fan monitor checks that the fan is spinning at
frequency converter power-up or whenever the mixing fan
is turned on. If the fan is not operating, the fault is issued.
The mixing-fan fault can be configured as a warning or an
alarm trip by 14-53 Fan Monitor.
Danfoss A/S © Rev. 06/2014 All rights reserved.
Confirm the spare part and its power card are the
correct part number.
Reset the unit to clear the alarm.
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