Vacon NXI Series - Page 61

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7
Fault
code
Fault
Possible cause
Correcting measures
13
Inverter
undertemperatur
e
Heatsink temperature is under –10C
14
Inverter
overtemperature
Heatsink temperature is over 90C or
77ºC (NX_6, FR6).
Overtemperature warning is issued
when the heatsink temperature exceeds
85C (72ºC).
Check the correct amount and flow of
cooling air.
Check the heatsink for dust.
Check the ambient temperature.
Make sure that the switching frequency
is not too high in relation to ambient
temperature and motor load.
15
Motor stalled
Motor stall protection has tripped.
Check motor.
16
Motor over-
temperature
Motor overheating has been detected by
inverter motor temperature model.
Motor is overloaded.
Decrease the motor load.
If no motor overload exists, check the
temperature model parameters.
17
Motor underload
Motor underload protection has tripped.
22
EEPROM
checksum fault
Parameter save fault
faulty operation
component failure
24
Counter fault
Values displayed on counters are
incorrect
25
Microprocessor
watchdog fault
faulty operation
component failure
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
26
Start-up
prevented
Start-up of the drive has been
prevented.
Cancel prevention of start-up.
29
Thermistor fault
The thermistor input of option board has
detected increase of the motor
temperature
Check motor cooling and loading
Check thermistor connection
(If thermistor input of the option board is
not in use it has to be short circuited)
31
IGBT temperature
(hardware)
IGBT Inverter Bridge overtemperature
protection has detected too high a short
term overload current
Check loading.
Check motor size.
32
Fan cooling
Cooling fan of the inverter does not
start, when ON command is given.
Contact the nearest Vacon distributor.
34
CAN bus
communication
Sent message not acknowledged.
Ensure that there is another device on
the bus with the same configuration.
36
Control unit
NXS Control Unit can not control NXP
Power Unit and vice versa
Change control unit
37
Device changed
(same type)
Option board or control unit changed.
Same type of board or same power
rating of drive.
Reset
Note: No fault time data record!
38
Device added
(same type)
Option board or drive added.
Drive of same power rating or same type
of board added.
Reset
Note: No fault time data record!
39
Device removed
Option board removed.
Drive removed.
Reset
Note: No fault time data record!
40
Device unknown
Unknown option board or drive.
Contact the nearest Vacon distributor.