ALARM 68, Safe stop activated
Loss of the 24V DC signal on terminal 37 has caused the
filter to trip. To resume normal operation, apply 24V DC to
terminal 37 and reset the filter.
ALARM 69, Power card temperaturePower 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 FC 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.
WARNING 73, Safe stop auto restart
Safe stopped. Note that with automatic restart enabled,
the motor may start when the fault is cleared.
77 WARNING, 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, Unit initialized to default value
Parameter settings are initialized to default settings after a
manual reset. Reset the unit to clear the alarm.
ALARM 244, Heatsink temperature
This alarm is only for F Frame adjustable frequency drives.
It is equivalent to Alarm 29. The report value in the alarm
log indicates which power module generated the alarm:
ALARM 245, Heatsink sensor
This alarm is only for F Frame adjustable frequency drives.
It is equivalent to Alarm 39. The report value in the alarm
log indicates which power module generated the alarm.
1 = left most inverter module.
2 = middle inverter module in F2 or F4
Adjustable frequency drive.
2 = right inverter module in F1 or F3 Adjustable
frequency drivee.
3 = right inverter module in F2 or F4 Adjustable
frequency drive.
5 = rectifier module.
ALARM 246, Power card supply
This alarm is only for F Frame Adjustable frequency drive.
It is equivalent to Alarm 46. The report value in the alarm
log indicates which power module generated the alarm.
1 = left most inverter module.
2 = middle inverter module in F2 or F4
Adjustable frequency drive.
2 = right inverter module in F1 or F3 Adjustable
frequency drive.
3 = right inverter module in F2 or F4 Adjustable
frequency drive.
5 = rectifier module.
ALARM 69, Power card temperaturePower card
temperature
This alarm is only for F Frame Adjustable frequency drive.
It is equivalent to Alarm 69. The report value in the alarm
log indicates which power module generated the alarm.
1 = left most inverter module.
2 = middle inverter module in F2 or F4
Adjustable frequency drive.
2 = right inverter module in F1 or F3 Adjustable
frequency drive.
3 = right inverter module in F2 or F4 Adjustable
frequency drive.
5 = rectifier module.
ALARM 248, Illegal power section configuration
This alarm is only for F Frame adjustable frequency drives.
It is equivalent to Alarm 79. The report value in the alarm
log indicates which power module generated the alarm:
1 = left most inverter module.
2 = middle inverter module in F2 or F4
Adjustable frequency drive.
2 = right inverter module in F1 or F3 Adjustable
frequency drive.
3 = right inverter module in F2 or F4 Adjustable
frequency drive.
5 = rectifier module.
WARNING 249, Rect. low temperature
IGBT sensor fault (highpower units only).
WARNING 250, New spare part
A component in the Adjustable frequency drive has been
replaced. Reset the Adjustable frequency drive for normal
operation.
Troubleshooting
VLT Active Filter AAF 00x
MG.90.V2.22 - VLT
®
is a registered Danfoss trademark
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