YASKAWA yasnac i80m

4.6
CAUSE
OF
FAULTS
AND
CORRECTIVE
ACTION
4.6.1
On-line
Self-diagnosis
(1)
Most
causes
of
faults
in
the
equipment
are
those that
can
be
detected
by
simple
checks
and
those
that
are
reparable.
This
unit
is
provided
with
the
following
functions
for
easy
and
rapid
detection
of
causes.
tD
Four-digit
alarm
code and
message
display
C
2
)
State
display
(with
M,
S,
T,
F,
P,
D
classification)
(§)
I/O
signal
display
(2)
The
above
displays
are
possible
regardless
of
whether
during
operation
or
when
stopped.
Cause
due
to
Alarm
Code,
and
Corrective
Actions
(1)
If
operation
stops
with
“ALM”
blinking
in
the
lower
right
corner
of
the
screen,
depress
|
COMN
|
key
and
|
ALARM
|
job
function
soft
key.
4.6.2
—
Both
the alarm
code
and
message
will
then be
displayed
on
the
screen.
Although
one
alarm
code
and
message
is
normally
displayed,
important
alarms
will
be
displayed
if
multiple
alarms
occur
simultaneously.
I
(2)
List
of
alarm
codes
A
list
of
alarm codes
of
high
order
is
shown
in
YASNAC
i
80M
APPENDIX
(TOE-C843-
11
.31).
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657
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