Danfoss VLT AQUA Drive FC 200 Operating Instructions Manual page 65

Warnings and Alarms
ALARM 60, External interlock
A digital input signal is indicating a fault condition external
to the frequency converter. An external interlock has
commanded the frequency converter to trip. Clear the
external fault condition. To resume normal operation,
apply 24V DC to the terminal programmed for external
interlock. Reset the frequency converter.
WARNING 62, Output frequency at maximum limit
The output frequency has reached the value set in
4-19 Max Output Frequency. Check the application to
determine the cause. Possibly increase the output
frequency limit. Be sure the system can operate safely at a
higher output frequency. The warning will clear when the
output drops below the maximum limit.
WARNING 64, Voltage limit
WARNING/ALARM 65, Control card over temperature
The cutout temperature of the control card is 80° C.
Troubleshooting
Check that the ambient operating temperature is
within limits.
Check for clogged filters.
Check fan operation.
8 8
Check the control card.
WARNING 66, Heatsink 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.
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 frequency converter.
ALARM 68, Safe stop activated
Loss of the 24V DC signal on terminal 37 has caused the
frequency converter to trip. To resume normal operation,
apply 24V DC to terminal 37 and reset the frequency
converter.
ALARM 69, Power 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.
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VLT AQUA Drive
Operating Instructions
ALARM 70, Illegal FC configuration
The control card and power card are incompatible. Contact
your supplier with the typecode of the unit from the
nameplate and the part numbers of the cards to check
compatibility.
ALARM 72, Dangerous failure
WARNING/ALARM 73, Safe stop auto restart
WARNING 76, Power unit setup
ALARM 79, Illegal PS config
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 91, Analog input 54 wrong settings
ALARM 92, No flow
A no-flow condition has been detected in the system.
22-23 No-Flow Function is set for alarm. Troubleshoot the
system and reset the frequency converter after the fault
has been cleared.
ALARM 93, Dry pump
A no-flow condition in the system with the frequency
converter operating at high speed may indicate a dry
pump. 22-26 Dry Pump Function is set for alarm.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
ALARM 94, End of curve
Feedback is lower than the set point. This may indicate
leakage in the system. 22-50 End of Curve Function is set for
alarm. Troubleshoot the system and reset the frequency
converter after the fault has been cleared.
ALARM 95, Broken belt
Torque is below the torque level set for no load, indicating
a broken belt. 22-60 Broken Belt Function is set for alarm.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
ALARM 96, Start delayed
Motor start has been delayed due to short-cycle
protection. 22-76 Interval between Starts is enabled.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
WARNING 97, Stop delayed
Stopping the motor has been delayed due to short cycle
protection. 22-76 Interval between Starts is enabled.
Troubleshoot the system and reset the frequency converter
after the fault has been cleared.
WARNING 98, Clock fault
Time is not set or the RTC clock has failed. Reset the clock
in 0-70 Date and Time.
ALARM 220, Overload trip
Motor overload has tripped. Indicates excess motor load.
Check motor and driven load. To reset press [Off Reset].
Then, to restart the system press [Auto on] or [Hand on].
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MG.20.M8.02 - VLT is a registered Danfoss trademark