Danfoss VLT FC 103 Programming Manual page 198

Troubleshooting
ALARM 33, Inrush fault
Too many powerups have occured within a short time
period. See General Specifications in the VLT Refrigeration
Drive FC 103 Design Guide for the allowed number of
power-ups within one minute.
WARNING/ALARM 34, Fieldbus communication fault
The fieldbus on the communication option card is not
working.
WARNING/ALARM 36, Mains failure
This warning/alarm is only active if the supply voltage to
the frequency converter is lost and 14-10 Mains Failure is
NOT set to [0] No function. Possible correction: check the
fuses to the frequency converter
ALARM 38, Internal fault
Contact your local Danfoss supplier.
WARNING 40, Overload of Digital Output Terminal 27
Check the load connected to terminal 27 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-01 Terminal 27 Mode.
WARNING 41, Overload of Digital Output Terminal 29
Check the load connected to terminal 29 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-02 Terminal 29 Mode.
WARNING 42, Overload of Digital Output On X30/6
Check the load connected to X30/6 or remove short-circuit
connection. Check 5-32 Term X30/6 Digi Out (MCB 101).
WARNING 42, Overload of Digital Output On X30/7
Check the load connected to X30/7 or remove short-circuit
connection. Check 5-33 Term X30/7 Digi Out (MCB 101).
WARNING 47, 24 V supply low
The external 24 V DC backup power supply may be
overloaded, otherwise contact your Danfoss supplier.
ALARM 48, 1.8 V supply low
Contact your Danfoss supplier.
WARNING 49, Speed limit
When the speed is not within the specified range in
4-11 Motor Speed Low Limit [RPM] and 4-13 Motor Speed
High Limit [RPM] the frequency converter will show a
warning. When the speed is below the specified limit in
1-86 Compressor Min. Speed for Trip [RPM] (except when
starting or stopping) the frequency converter will trip.
ALARM 50, AMA calibration failed
Contact your Danfoss supplier.
ALARM 51, AMA check U and I
nom
The setting of motor voltage, motor current, and motor
power is presumably wrong. Check the settings.
ALARM 52, AMA low I
nom
The motor current is too low. Check the settings.
ALARM 53, AMA motor too big
The motor is too big for the AMA to be carried out.
ALARM 54, AMA motor too small
The motor is too small for the AMA to be carried out.
®
VLT Refrigeration Drive Programming Guide
nom
®
MG16H102 - VLT is a registered Danfoss trademark
ALARM 55, AMA par. out of range
The par. values found from the motor are outside
acceptable range.
ALARM 56, AMA interrupted by user
The AMA has been interrupted by the user.
ALARM 57, AMA timeout
Try to start the AMA again a number of times, until the
AMA is carried out. Please note that repeated runs may
heat the motor to a level where the resistance R
are increased. In most cases, however, this is not critical.
WARNING/ALARM 58, AMA internal fault
Contact your Danfoss supplier.
WARNING 59, Current limit
The current is higher than the value in 4-18 Current Limit.
WARNING 60, External Interlock
External Interlock has been activated. To resume normal
operation, apply 24 V DC to the terminal programmed for
External Interlock and reset the frequency converter (via
Bus, Digital I/O or by pressing [Reset]).
WARNING 62, Output Frequency at Maximum Limit
The output frequency is limited by the value set in
4-19 Max Output Frequency.
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 defective and 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 terminal 37 then send a Reset signal (via
Bus, Digital I/O or by pressing [Reset]).
ALARM 70, Illegal Frequency Converter Configuration
Actual combination of control board and power board is
illegal.
ALARM 80, Drive Initialised to Default Value
Parameter settings are initialised to default setting after a
manual (three-finger) reset or via 14-22 Operation Mode.
If the temperature is below 15 °C the warning will be
present.
WARNING/ALARM 92, NoFlow
A no load situation has been detected for the system. See
parameter group 22-2*.
and R
s r
5 5
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