Danfoss VLT AQUA Drive FC 200 Operating Instructions Manual page 170

Troubleshooting
ALARM 67, Option module configuration has changed
One or more options have either been added or removed
since the last power-down.
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]. See 5-19 Terminal 37
Safe Stop.
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
ALARM 70, Illegal FC Configuration
Actual combination of control board and power board is
illegal.
WARNING 73, Safe stop auto restart
Safe stopped. Note that with automatic restart enabled,
the motor may start when the fault is cleared.
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, Unit initialized to default value
Parameter settings are initialized to default settings after a
manual reset.
ALARM 244, Heatsink temperature
Report value indicates source of alarm (from left):
1-4 Inverter
5-8 Rectifier
ALARM 245, Heatsink sensor
No feedback from the heatsink sensor. Report value
indicates source of alarm (from left):
1-4 Inverter
5-8 Rectifier
ALARM 246, Power card supply
The supply on the power card is out of range Report value
indicates source of alarm (from left):
1-4 Inverter
5-8 Rectifier
ALARM 247, Power card temperature
Power card over temperature Report value indicates source
of alarm (from left):
1-4 Inverter
5-8 Rectifier
ALARM 248, Illegal power section configuration
Power size configuration fault on the power card Report
value indicates source of alarm (from left):
1-4 Inverter
VLT AQUA Low Harmonic Drive Operating Instructions
5-8 Rectifier
ALARM 249, Rect. low temp.
The temperature of the rectifier heat sink is too low. This
could indicate that the temperature sensor is defect.
ALARM 250, New spare part
The power or switch mode power supply has been
exchanged. The filter type code must be restored in the
EEPROM. Select the correct type code in 14-23 Typecode
Setting according to the label on the unit. Remember to
select 'Save to EEPROM' to complete.
ALARM 251, New type code
The filter has a new type code.
ALARM 300, Mains Cont. Fault
The feedback from the mains contactor did not match the
expected value within the allowed time frame. Contact
your Danfoss supplier.
ALARM 301, SC Cont. Fault
The feedback from the soft charge contactor did not
match the expected value within the allowed time frame.
Contact your Danfoss supplier.
ALARM 302, Cap. Over Current
Excessive current was detected through the AC capacitors.
Contact your Danfoss supplier.
ALARM 303, Cap. Earth Fault
An earth fault was detected through the AC capacitor
currents. Contact your Danfoss supplier.
ALARM 304, DC Over Current
Excessive current through the DC link capacitor bank was
detected. Contact your Danfoss supplier.
ALARM 305, Mains Freq. Limit
The mains frequency was outside the limits. Verify that the
mains frequency is within product specification.
ALARM 306, Compensation Limit
The needed compensation current exceeds unit capability.
Unit is running at full compensation.
ALARM 308, Resistor temp
Excessive resistor heatsink temperature detected.
ALARM 309, Mains Earth Fault
An earth fault was detected in the mains currents. Check
the mains for shorts and leakage current.
ALARM 310, RTDC Buffer Full
Contact your Danfoss supplier.
ALARM 311, Switch. Freq. Limit
The average switching frequency of the unit exceeded the
limit. Verify that 300-10 Active Filter Nominal Voltage and
300-22 CT Nominal Voltage are set correctly. If so, contact
your Danfoss supplier.
ALARM 312, CT Range
Current transformer measurement limitation was detected.
Verify that the CTs used are an appropriate ratio.
ALARM 314, Auto CT Interrupt
Auto CT detection was interrupted by the user.
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MG20T202 - VLT is a registered Danfoss trademark
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