Vacon NXI - Page 74

74 • vacon control keypad
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7
Fault
code
Fault
Possible cause
Correcting measures
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.
41
IGBT
temperature
IGBT Inverter Bridge overtemperature
protection has detected too high a
short term overload current
Check loading.
Check motor size.
42
Brake resistor
overtemperature
Brake resistor overtemperature
protection has detected too heavy
braking
Set the deceleration time longer.
Use external brake resistor.
43
Encoder fault Note the exceptional Fault data
record. See 7.3.4.3. Additional codes:
1 = Encoder 1 channel A is missing
2 = Encoder 1 channel B is missing
3 = Both encoder 1 channels are
missing
4 = Encoder reversed
Check encoder channel connections.
Check the encoder board.
44
Device changed
(different type)
Option board or control unit changed.
Option board of different type or
different power rating of drive.
Reset
Note:
No fault time data record!
Note:
Application parameter values
restored to default.
45
Device added
(different type)
Option board or drive added.
Option board of different type or drive
of different power rating added.
Reset
Note:
No fault time data record!
Note:
Application parameter values
restored to default.
50
Analogue input
(sel. signal
range 4 to 20
mA)
Current at the analogue input is <
4mA.
control cable is broken or loose
signal source has failed
Check the current loop circuitry.
51
External fault Digital input fault.
52
Keypad
communication
fault
There is no connection between the
control keypad and the inverter.
Check keypad connection and
possible keypad cable.
53
Fieldbus fault The data connection between the
fieldbus Master and the fieldbus
board is broken
Check installation.
If installation is correct contact the
nearest Vacon distributor.
54
Slot fault Defective option board or slot Check board and slot.
Contact the nearest Vacon
distributor.