VLT
®
FCD Series
WARNING/ALARM 13: Overcurrent
The inverter’s peak current limit (approx. 200% of
rated output current) has been exceeded. The warn-
ing will last approx. 1-2 sec, and the frequency
converter will then trip and emit an alarm. Switch off
the frequency converter and check whether the mo-
tor shaft can be turned, and whether the size of the
motor is suitable for the frequency converter.
ALARM 14: Earth fault
There is a discharge from the output phases to
earth, either in the cable between the frequency con-
verter and the motor, or in the motor. Turn off the
frequency converter and remove the earth fault.
ALARM 15: Switch mode fault
Fault in switch mode power supply (internal supply).
Contact your Danfoss supplier.
ALAR: 16: Short-circuit
There is a short-circuit on the motor terminals or in
the motor. Disconnect the mains supply to the fre-
quency converter and remove the short-circuit.
WARNING/ALARM 17: Serial communication
timeout
There is no serial communication to the frequency
converter. The warning will only be active when 514
Bus timeout function is set to a value other than OFF.
If parameter 514 Bus timeout function is set to Stop
and trip [5], it will first give a warning and then ramp
down and trip out accompanied by an alarm. Param-
eter 513 Bus timeout can if required be increased
WARNING/ALARM 18: HPFB bus timeout
There is no serial communication to the frequency
converter’s communication option card. This warning
will only be active when parameter 804 Bus timeout
function is set to a value other than OFF. If parame-
ter 804 Bus timeout function is set to Stop and trip,it
will first give a warning and then ramp down and trip
out accompanied by an alarm. Parameter 803 Bus
timeout can if required be increased.
WARNING 33: Out of frequency range
This warning is active if the output frequency has
reached Output frequency low limit (parameter 201)
or Output frequency high limit (parameter 202). If
the VLT frequency converter is in Process regulation,
closed loop (parameter 100) the warning will be ac-
tive in the display. If the VLT frequency converter is
in another mode than Process regulation, closed
loop, bit 008000 Out of frequency range in extended
status word will be active, but there will not be a
warning in the display.
WARNING/ALARM 34: HPFB communication fault
Communication fault only occurs in Profibus ver-
sions.
ALARM 35: Inrush fault
This alarm occurs when the frequency converter has
been connected to the mains supply too many times
within 1 minute.
WARNING/ALARM 36: Overtemperature
If the internal temperature rises above 75 - 85
C
(depending on the device) the frequency converter
will emit a warning, and the motor will continue to
run unchanged. If the temperature continues to rise,
the switch frequency is reduced automatically . See
Temperature-dependent switching frequency.
If the internal temperature of the heatsink rises
above 92 - 100
C (depending on the unit) the fre-
quency converter will cut out. The temperature fault
cannot be reset until the temperature of the internal
heatsink has dropped to below 70
C. The tolerance
is ± 5
C. The temperature can be caused by the fol-
lowing:
- The ambient temperature too high.
- Motor cable too long.
- Too high mains voltage.
ALARM 37–45: Internal fault
Alarm 37, internal fault number 0: Communication
fault between control card and BMC2.
Alarm 38, internal fault number 1: Flash EEPROM
fault on control card.
Alarm 39, internal fault number 2: RAM fault on con-
trol card
Alarm 40, internal fault number 3: Calibration con-
stant in EEPROM.
Alarm 41, internal fault number 4: Data values in
EEPROM.
Alarm 42, internal fault number 5: Fault in motor pa-
rameter database.
Alarm 43, internal fault number 6: General power
card fault.
Alarm 44, internal fault number 7: Minimum software
version of control card or BMC2
Alarm 45, internal fault number 8: I/O fault (digital in-
put/output, relay or analog input/output)
MG.04.A1.02 - VLT is a registered Danfoss trade mark
127
All about FCD 300
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