Danfoss vlt fcd 302 Operating Instructions Manual page 73

Troubleshooting
W W ARNING 62, Output Frequency at Maximum Limit:
The output frequency is higher than the value set in
4-19 Max Output Frequency. This is a warning in VVC
and an alarm (trip) in Flux mode.
ALARM 63, Mechanical Brake Low:
The actual motor current has not exceeded the "release
brake" current within the "Start delay" time window.
WARNING 64, Voltage Limit:
The load and speed combination demands a motor voltage
higher than the actual DC link voltage.
WARNING/ALARM/TRIP 65, Control Card Over Temperature:
Control card over temperature: The cut-out temperature of
the control card is 80° C.
WARNING 66, Heatsink Temperature Low:
The heat sink temperature is measured as 0 C. This could
indicate that the temperature sensor is defect and thus the
fan speed is increased to the maximum in case the power
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part or control card is very hot.
ALARM 67, Option Configuration has Changed:
One or more options has either been added or removed
since the last power down.
ALARM 68, Safe Stop:
Safe Stop has been activated. To resume normal operation,
apply 24V DC to T-37. Press reset button on LCP.
WARNING 68, Safe Stop:
Safe Stop has been activated. Normal operation is resumed
when Safe Stop is disabled. Warning: Automatic Restart!
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 76, Power Unit Setup
The required number of power units does not match the
detected number of active power units.
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.
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VLT Decentral Drive FCD 302 Operating Instructions
ALARM 78, Tracking Error:
The difference between set point value and actual value has
plus
exceeded the value in 4-35 Tracking Error. Disable the
mode
function by 4-34 Tracking Error Function or select an alarm/
warning also in 4-34 Tracking Error Function. Investigate the
mechanics around the load and motor, Check feedback
connections from motor – encoder – to drive. Select motor
feedback function in 4-30 Motor Feedback Loss Function.
Adjust tracking error band in 4-35 Tracking Error and
4-37 Tracking Error Ramping.
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, Drive Initialised to Default Value:
Parameter settings are initialised to default setting after a
manual (three-finger) reset.
ALARM 81, CSIV corrupt:
CSIV file has syntax errors.
ALARM 82, CSIV parameter error:
CSIV failed to init a parameter.
ALARM 85, Dang fail PB:
Profibus/Profisafe Error.
ALARM 86, Dang fail DI:
Sensor Error.
ALARM 88, Option Detection:
A change in the option layout has been detected. This alarm
occurs when 14-89 Option Detection is set to [0] Frozen config-
uration and the option layout for some reason has changed.
An option layout change has to be enabled in 14-89 Option
Detection before the change is accepted. If the change of
configuration is not accepted, it is only possible to reset
Alarm 88 (Trip-lock) when the option configuration has been
re-established/corrected.
ALARM 90, Feedback Monitor:
Check the connection to encoder/ resolver option and
eventually replace the MCB 102or MCB 103.
ALARM 91, Analogue Input 54 Wrong Settings:
Switch S202 has to be set in position OFF (voltage input)
when a KTY sensor is connected to analogue input terminal
54.
ALARM 250, New Spare Part:
The power or Switch Mode Power Supply has been
exchanged. The frequency converter type code must be
restored in the EEPROM. Select the correct type code in
14-23 Typecode Setting according to the label on unit.
Remember to select 'Save to EEPROM' to complete.
ALARM 251, New Type Code:
The Frequency Converter has got a new type code.
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