4-32 Motor Feedback Loss Timeout. During a commissioning
procedure the function may be effective.
WARNING 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
plus
mode 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
º
C.
WARNING 66, Heatsink Temperature Low:
The heat sink temperature is measured as 0
°
C. This could
indicate that the temperature sensor is defect. Thus the fan
speed is increased to the maximum in case the power 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 24 V DC to T-37. Press [Reset].
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 can 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 (that is, less than the allowed
number of inverter sections). This warning generates on
power cycle when the frequency converter is set to run
with fewer inverters and remains on.
ALARM 78, Tracking Error:
The difference between set
point value and actual value
has exceeded the value in 4-35 Tracking Error. Disable the
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 frequency
converter. 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 initialise 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 configuration and the option layout for some reason
has changed. Enable an option layout change 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 102 or 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.
Troubleshooting
VLT
®
Decentral Drive FCD 302 Operating Instructions
74 MG04F302 - VLT
®
is a registered Danfoss trademark
77
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
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