YASKAWA yasnac i80m

4.6
CAUSE
OF
FAULTS
AND
CORRECTIVE
ACTION
(Cont’d)
I/O
Signal
Diagnosis
(1)
When the
cause
of
trouble
is
assumed
to
be
in
the
I/O
part
of
the
unit,
it
will
be
possible
to
check
by
displaying
the
present
state
of
the
1/
O
signal.
(2)
Standard
I/O
signal
and
custom
I/O
signal
The
standard
I/O
signal
can
be observed
by
specifying
the
diagnosis
No.
with
the
keys
on
the
NC
operator
panel.
'
If
a
power
sequence
control
option
is
provided
as
optional,
the
system
will
have
its
own
characteristic
"custom
I/O
signal"
and
this
state
can
be
observed
by setting
an
exclusive
diagnosis
No.
in
the
unit.
For
details,
refer
to
your
machine
tool
builder’s
manual.
4.6.3
NC
CONTROL
r
TOWER
SEQUENCE
PANEL
ON
MACHINE
BASIC
LOGIC
PROCESSING
UNIT
STD.
INPUT
S'G
STD
OUTPUT
5ÿÿ
SIDE
I
NC
CONTROL
<
<
POWER
SEQUENCE
PANEL
ON
MACHINE
SIDE
GUSTO
INPUT
I
iM
SIG
POWER
SEQUENCE
CONTROL
UNIT
BASIC
LOGIC
PROCESSING
UNIT
STD
INPUT
SIG
CUSTOM
OUTPUT
S'C
S
STD
OUTPUT
Fig
4.6.1
YASNAC
i
80
M
System
,
-
658
-