Danfoss VLT AQUA Drive FC 200 Instruction Manual page 199

9 Troubleshooting
ALARM 68, Safe stop activated
Safe stop has been activated. To resume normal operation, apply 24 VDC
to terminal 37, then send a reset signal (via Bus, Digital I/O, or by press-
ing the reset key. See parameter 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
The current control board and power board combination 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 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 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.
ALARM 244, Heatsink temperature
Report value indicates source of alarm (from left):
1-4 Inverter
5-8 Rectifier
9
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 overtemperature. 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
5-8 Rectifier
ALARM 249, Rect. low temp.
The temperature of the rectifier heatsink is too low. This could indicate
that the temperature sensor is defective.
9-14
ALARM 250, New spare part
The power or switch mode power supply has been exchanged. The ad-
justable frequency drive type code must be restored in the EEPROM. Se-
lect the correct type code in par. 14-23
the label on the unit. Remember to select 'Save to EEPROM' to complete.
ALARM 251, New type code
The adjustable frequency drive has a new type code.
ALARM 300, Line Power Cont. Fault
The feedback from the line power contactor did not match the expected
value within the allowed time frame. Contact your 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 supplier.
ALARM 302, Cap. Overcurrent
Excessive current was detected through the AC capacitors. Contact your
supplier.
ALARM 303, Cap. Ground Fault
A ground fault was detected through the AC capacitor currents. Contact
your supplier.
ALARM 304, DC Overcurrent
Excessive current through the DC link capacitor bank was detected. Con-
tact your supplier.
ALARM 305, Line Power Freq. Limit
The line power frequency was outside the limits. Verify that the line power
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, Line Power Ground Fault
A ground fault was detected in the line power currents. Check the line
power for shorts and leakage current.
ALARM 310, RTDC Buffer Full
Contact your supplier.
ALARM 311, Switch. Freq. Limit
The average switching frequency of the unit exceeded the limit. Verify
that parameters 300-10 and 300-22 are set correctly. If so, contact your
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.
ALARM 315, Auto CT Error
An error was detected while performing auto CT detection. Contact your
supplier.
®
MG.20.T1.22 - VLT is a registered Danfoss trademark
VLT AQUA Low Harmonic Drive Instruction
Typecode Setting
Manual
according to