YASKAWA YASNAC 3000G - Page 158

8.5.2
POWER
RECEPTACLES
FOR
MAINTENANCE
TOOLS
7.
When
alarm
code
35
is
not
diminished
take
the
same
procedure
with
the
item
5
and
item
6
for
the other
axes.
The
receptacle
for
powering
the
devices
for
maintenance
is
provided
in
the
enclosure.
It
can
be
used
for
maintenance
devices
of
ratings
shown
below.
100
VAC,
1A
or
below
Note
that
the
receptacle
is
not
provided
with
the
fuse.
8.
Turning
on
the
power
after
removing
the
cause
from
the
tripped
axis.
9.
If
the
thermal
overload
relay
is
blown
off
again,
contact
the
company.
5?
%
•
When
the
breaker
is
turned
on,
the
receptacle
becomes
live.
2
RESET
BUTTON
(RED)
8.6
TROUBLE
CAUSES
AND
REMEDIES
8.6.1
ON-LINE DIAGNOSTICS
w~,
On-line
diagnostics
are
implemented
to
locate
a
trouble
quickly
and
protect
the
machine
against
malfunctions.
Shown
below
are
the
displaying
functions
executed
by
the
control
being
on-line
and
machining.
u
o
THERMAL
OVERLOAD
RELAY
o
Display
of
four-digit
alarm
code
including
a
code
showing
an
axis
in
error.
•
Display
of
fourrdigit
status
code
including
a
function
code.
•
Input/output
signal display
These
displays
can
be made
at
any
time
while the
machine is
in
automatic
operation
or
at
standby.
Fig.
8.4
8.5
OTHERS
8.5.1
MOLDED-CASE
CIRCUIT
BREAKERS
(MCB)
8.6.2
ALARM
CODES
AND
REMEDIES
When
the
molded-case
circuit
breaker
(1MCB)
is
turned
off
in
the
NC
control
panel,
power
is
not
supplied
to
the
circuit
even
if
POWER
ON
push¬
button
on
the
operator's
panel
is
depressed.
Be
sure
to
keep
the
breaker
turned
on
except
it
is
turned
off
at
inspection
and
maintenance.
If
the
machine
stops
with
INPUT
ERROR
lamp
or
NC
ALARM
lamp
illuminated,
depress
the
ALM
key.
Then
alarm
and
status
codes
will
be
dis¬
played
on
the
universal
display.
Alarm
codes
"81"
and
"82"
are
displayed
as
soon
as
the
cor¬
responding
error
occurs.
NOTE:
The
NC
control
may
sometimes
not
be
furnished
with
MCB.
Or
some
types
of
the
con¬
trol
allow
to
operate
the
MCB
from
outside
the
enclosure
as
the
all
optional
machine
interface
is
housed
in
the
NC
control
enclosure.
For
op¬
eration
instructions
on
these
panels,
refer
to
the
machine
tool
builder's
manual.
151