Vacon NX User Manual page 144

vacon • 142
Fault
Fault
code
38 Device added
(same type)
39 Device removed
40 Device unknown
Unknown option
board or drive.
41 IGBT temperature IGBT Inverter Bridge overtemperature
42 Brake resistor
overtemperature
43 Encoder fault
44 Device changed
(different type)
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9
Table 55. Fault codes
Possible cause
Option board added.
Subcodes:
S1 = Control board
S4 = Control unit
S5 = Adapter board and slot
Option board removed.
Subcode in T.14:
S1 = Unknown device
S2 = Power1 not same type as Power2
S3 = NXS or NXP1 and star coupler
S4 = Software and ctrl unit incompatible
S5 = Old control board version
protection has detected too high a short
term overload current
Subcodes:
S1 = Internal brake chopper overtemp.
S2 = Brake resistance too high (BCU)
S3 = Brake resistance too low (BCU)
S4 = Brake resistance not detected (BCU)
S5 = Brake resistance leakage (earth
fault) (BCU)
Problem detected in encoder signals.
Sub code in T.14:
S1 = Encoder 1 channel A is missing
S2 = Encoder 1 channel B is missing
S3 = Both enc. 1 channels are missing
S4 = Encoder reversed
S5 = Encoder board missing
S6 = Serial communication fault
S7 = Channel A/Channel B mismatch
S8 = Resolver/Motor pole pair mismatch
S9 = Missed start angle
Option board or power unit changed.
New device of different type or different
rating than the previous one.
Subcodes:
S1 = Control board
S2 = Control unit
S3 = Power board
S4 = Power unit
S5 = Adapter board and slot
FAULT TRACING
Correcting measures
Reset. Device is ready for
use.
Old board settings will be
used.
Reset. Device no longer
available.
Contact your local distributor.
Check loading.
Check motor size.
Reset unit.
Set the deceleration time
longer and restart.
Dimensioning of the brake
chopper is not correct.
Use external brake resistor.
Check encoder channel
connections.
Check the encoder board.
Reset
Set the option board
parameters again if option
bard changed. Set converter
parameters again if power
unit changed.