Fault
code
Fault ID
Fault name
Possible cause
How to correct the fault
45
441
Device added (differ-
ent type)
There is a new power unit of
a different type. Parameters
are not available in the set-
tings.
Reset the fault.
The drive reboots after you reset
the fault.
Set the power unit parameters
again.
443
Device added (differ-
ent type)
A new option board, that you
have not used before in the
same slot, was put in slot C.
No parameter settings are
saved.
Set the option board parameters
again.
444
Device added (differ-
ent type)
The same cause as in ID443,
but refers to Slot D.
445
Device added (differ-
ent type)
The same cause as in ID443,
but refers to Slot E.
46
662
Real Time Clock
The voltage of the RTC bat-
tery is low.
Replace the battery.
47
663
Software updated
The software of the drive
was updated, the full soft-
ware package or an applica-
tion.
No steps are necessary.
50
1050
AI low fault
1 or more of the available
analogue 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.
Do a check of the analogue input
circuit.
Make sure that parameter AI1 Sig-
nal Range is set correctly.
51
1051
Device external fault
The digital input signal that
is set with parameter
P3.5.1.11 or P3.5.1.12 was
activated.
This is a user-defined fault.
Do a check of the digital inputs and
schematics.
52
1052
Keypad communica-
tion fault
The connection between the
control panel and the drive
is defective.
Do a check of the control panel
connection and the control panel
cable if you have it.
1352
53
1053
Fieldbus communica-
tion fault
The data connection
between the fieldbus master
and the fieldbus board is
defective.
Do a check of the installation and
fieldbus master.
VACON · 346
FAULT TRACING
11
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