HVAC400X – APPLICATION MANUAL
165
EN2B-0417GE51 R0719
continued: Fault codes
Fault code Fault ID
Fault name
Possible cause
Remedy
39
380
Device removed
An option board was removed
from the slot.
The device is not available. Reset the
fault.
40
390
Device unknown
An unknown device was
connected (the power unit /
option board).
The device is not available.
41
400
IGBT temperature
The calculated IGBT temperature
(unit tempe I2T) is too
high.
Check the loading.
Check the motor size.
44
430
Device changed (different
type)
The option board was replaced
by a new one that you have not
used before in the same slot. No
parameter settings are saved.
Set the power unit parameters again.
45
440
Device added (different
type)
There is a new option board of a
different type. No parameters are
available in the settings.
Set the power unit parameters again.
50
1050
AI low fault
One or more of the available
analog input signals is below
50% of the minimum signal
range. A control cable is
defective or loose. A malfunction
in a signal source.
Replace the defective parts.
Check the analog input circuit.
Make sure that parameter AI1 Signal
Range is set correctly.
51
1051
External fault
The digital input signal that is set
with parameter P3.5.1.7 or
P3.5.1.8 was activated.
Check the input signal.
52
1052
Keypad communication
fault
The connection between the
control panel and the drive is
defective.
Check the control panel connection and
the control panel cable.
1352
53
1053
Fieldbus communication
fault
The data connection between the
fieldbus master and the fieldbus
board is defective.
Check the installation and fieldbus
master.
54
1354
Slot A fault
Fault A defective option board or
slot.
Check the board and the slot.
1454
Slot B fault
1554
Slot C fault
1654
Slot D fault
1754
Slot E fault