Danfoss VLT FC 102 Instruction Manual page 50

Diagnostics and Troubleshoo...
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.
ALARM 70, Illegal FC configuration
The control card and power card are incompatible. To check
compatibility, contact your supplier with the type code of
the unit from the nameplate and the part numbers of the
cards.
7 7
ALARM 80, Drive initialized to default value
Parameter settings are initialized to default settings after a
manual reset. To clear the alarm, reset the unit.
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.
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VLT HVAC Drive Instruction Manual
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 adjustable frequency
drive 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.
WARNING 200, Fire mode
This warning indicates the adjustable frequency drive is
operating in Fire mode. The warning clears when fire mode
is removed. See the fire mode data in the alarm log.
WARNING 201, Fire Mode was Active
This indicates the adjustable frequency drive had entered fire
mode. Cycle power to the unit to remove the warning. See
the fire mode data in the alarm log.
WARNING 202, Fire mode limits exceeded
While operating in fire mode one or more alarm conditions
have been ignored which would normally trip the unit.
Operating in this condition voids unit warranty. Cycle power
to the unit to remove the warning. See the fire mode data in
the alarm log.
WARNING 203, Missing motor
With an adjustable frequency drive operating multi-motors,
an underload condition was detected. This could indicate a
missing motor. Inspect the system for proper operation.
WARNING 204, Locked rotor
With an adjustable frequency drive operating multi-motors,
an overload condition was detected. This could indicate a
locked rotor. Inspect the motor for proper operation.
WARNING 250, New spare part
A component in the adjustable frequency drive has been
replaced. Reset the adjustable frequency drive for normal
operation.
WARNING 251, New typecode
The power card or other components have been replaced
and the type code changed. Reset to remove the warning
and resume normal operation.
MG11AJ22 - Rev. 2013-09-13