TREND NX Variable Speed Drives User Manual
Page 98
CONTROL KEYPAD
vacon • 81
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7
Fault
code
Fault
Possible cause
Correcting measures
32
Fan cooling
Cooling fan of the frequency converter
does not start, when ON command is given
Contact the distributor near to you.
Please visit:
34
CAN bus
communication
Sent message not acknowledged.
Ensure that there is another device on
the bus with the same configuration.
35
Application
Problem in application software
Contact your distributor. If you are
application programmer check the
application program.
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 distributor near to you.
Please visit:
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
I
in
< 4mA (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
The connection between the control
keypad and the frequency converter is
broken.
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.
Please visit: