Honeywell NX series User Manual page 86

Fault Fault
code
31 IGBT temperature
(hardware)
32 Fan cooling
34 CAN bus
communication
35 Application
36 Control unit
37 Device
changed
(same type)
38 Device added
(same type)
39 Device
removed
40 Device
unknown
41 IGBT temperature
42 Brake resistor
overtemperature
43 Encoder fault
44 Device
changed
(different type)
45 Device added
(different type)
49 Division by zero
in application
50 Analogue input
I < 4mA (sel.
in
signal range 4
to 20 mA)
51 External fault
52 Keypad
communication
fault
CONTROL KEYPAD
Possible cause
IGBT Inverter Bridge overtemperature
protection has detected too high a short
term overload current
Cooling fan of the frequency converter
does not start, when ON command is
given
Sent message not acknowledged.
Problem in application software
NXS Control Unit can not control NXP
Power Unit and vice versa
Option board or control unit changed.
Same type of board or same power rating
of drive.
Option board or drive added.
Option board removed.
Unknown option board or drive.
Subcode in T.14:
S1 = Unknown device
S2 = Power1not same type as Power2
IGBT Inverter Bridge overtemperature
protection has detected too high a short
term overload current
Brake resistor overtemperature protection
has detected too heavy braking
Problem detected in encoder signals.
Subcode in T.14:
1 = Encoder 1 channel A is missing
2 = Encoder 1 channel B is missing
3 = Both encoder 1 channels are missing
4 = Encoder reversed
5 = Encoder board missing
Option board or power unit changed.
New device of different type or different
power rating.
Option board of different type added.
Division by zero has occurred in
application program.
Current at the analogue input is < 4mA.
−
control cable is broken or loose
−
signal source has failed
Digital input fault.
The connection between the control
keypad (or NCDrive) and the frequency
converter is broken.
Correcting measures
Check loading.
Check motor size.
Make identification run.
Contact the distributor near to you.
Ensure that there is another device on
the bus with the same configuration.
Contact your distributor. If you are
application programmer check the
application program.
Change control unit
Reset. Device is ready for use.
Old parameter settings will be used.
Reset. Device is ready for use.
Old board settings will be used.
Reset. Device no longer available.
Contact the distributor near to you.
Check loading.
Check motor size.
Make identification run.
Set the deceleration time longer.
Use external brake resistor.
Check encoder channel connections.
Check the encoder board.
Check encoder frequency in open loop.
Reset
Set the option board parameters again if
option board was changed.
Set converter parameters again if power
unit was changed.
Reset
Set the option board parameters again.
Contact your distributor if the fault re-
occurs while the converter is in run
state. If you are application programmer
check the application program.
Check the current loop circuitry.
Remove fault situation on external
device.
Check keypad connection and possible
keypad cable.
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