Danfoss VLT FC 103 Operating Instructions Manual page 66

Warnings and Alarms
A A LARM 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 [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. Contact
the supplier with the type code of the unit from the
nameplate and the part numbers of the cards to check
compatibility.
8 8
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.
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 frequency converter. Confirm the
spare part and its power card are the correct part number.
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 will be
generated on power cycle when the frequency converter 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 initialised to default value
Parameter settings are initialised to default settings after a
manual reset. Reset the unit to clear the alarm.
ALARM 81, CSIV corrupt
CSIV file has syntax errors.
ALARM 82, CSIV parameter error
CSIV failed to init a parameter.
ALARM 85, Dang fail PB
Profibus/Profisafe Error.
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VLT Refrigeration Drive Operating Instructions
WARNING/ALARM 104, Mixing fan fault
The fan monitor checks that the fan is spinning at drive
power-up or whenever the mixing fan is turned on. If the
fan is not operating, then the fault is annunciated. The
mixing-fan fault can be configured as a warning or an
alarm trip by 14-53 Fan Monitor.
Troubleshooting
Cycle power to the frequency converter to determine if the
warning/alarm returns.
WARNING 250, New spare part
A component in the frequency converter has been
replaced. Reset the frequency converter for normal
operation.
WARNING 251, New typecode
The power card or other components have been replaced
and the typecode changed. Reset to remove the warning
and resume normal operation.
MG16J102 - VLT is a registered Danfoss trademark