Danfoss VLT FC 103 Instruction Manual page 75

Warnings and Alarms
WARNING 60, External interlock
A digital input signal is indicating a fault condition external
to the adjustable frequency drive. An external interlock has
commanded the adjustable frequency drive to trip. Clear
the external fault condition. To resume normal operation,
apply 24 V DC to the terminal programmed for external
interlock. Reset the adjustable frequency drive.
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/ALARM 65, Control card overtemperature
The cut-out temperature of the control card is 176 °F [80
°C].
Troubleshooting
•
Check that the ambient operating temperature is
within limits.
•
Check for clogged filters.
•
Check fan operation.
•
Check the control card.
WARNING 66, Heatsink temperature low
The adjustable frequency drive 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 adjustable
frequency drive 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 unit.
ALARM 68, Safe Stop activated
Loss of the 24 V DC signal on terminal 37 has caused the
filter to trip. To resume normal operation, apply 24 V DC to
terminal 37 and reset the filter.
MG16E222
Instruction Manual
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
Troubleshooting
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.
ALARM 78, Tracking errorDrive initialized to default
value
Parameter settings are initialized to default settings after a
manual reset. Reset the unit to clear the alarm.
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 adjustable frequency drive after the
fault has been cleared.
ALARM 93, Dry pump
A no-flow condition in the system with the adjustable
frequency drive operating at high speed may indicate a
dry pump. 22-26 Dry Pump Function is set for alarm.
Troubleshoot the system and reset the adjustable
frequency drive after the fault has been cleared.
ALARM 94, End of curve
Feedback is lower than the setpoint. This may indicate
leakage in the system. 22-50 End of Curve Function is set for
alarm. Troubleshoot the system and reset the adjustable
frequency drive 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 adjustable
frequency drive 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 adjustable
frequency drive after the fault has been cleared.
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
Check that the ambient operating temperature is
within limits.
Check for clogged filters.
Check fan operation.
Check the power card.
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