Fault
code
Fault
Subcode in
T.14
Possible cause
How to correct the fault
36
Control unit
NXS Control Unit can not
control NXP Power Unit and
vice versa
Change the control unit.
37 **
Device changed
(same type)
The option board was
replaced by a new one that
you have used before in the
same slot. The parameters
are available in the drive.
Reset the fault. The device is ready
for use. The drive starts to use the
old parameter settings.
38 **
Device added
(same type)
The option board was added.
You have used the same
option board before in the
same slot. The parameters
are available in the drive.
Reset the fault. The device is ready
for use. The drive starts to use the
old parameter settings.
39 **
Device removed
An option board was
removed from the slot.
The device is not available. Reset
the fault.
40
Device unknown
S1 =
Unknown
device
An unknown device was
connected (the power unit/
option board)
Ask instructions from the distribu-
tor near to you.
S2 =
Power1not
same type
as Power2
41
IGBT temperature
IGBT Inverter Bridge over-
temperature protection has
detected too high a short
term overload current.
Do a check of the loading. Do a
check of the motor size. Make an
identification run.
42
Brake resistor
overtemperature
Brake resistor overtemper-
ature protection has detec-
ted too heavy braking.
Set the deceleration time longer.
Use external brake resistor.
VACON · 388
FAULT TRACING
9
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