YASKAWA yasnac i80m

4.2
BATTERY
REPLACEMENT
The
memory
in
which
the
parameters,
tool
corrections
and
processing
programs
are
stored
is
provided
with
a
backup
batteiy
so
data
are
not
lost
if
a
power
failure
occurs.
The alarm
"BAT"
will
be
displayed
on
the
NC
operator
panel
screen
when
the
battery
becomes
weak.
When
this
alarm is
displayed,
it
will
be
necessary
to
replace
the
battery
within
one
month.
'ÿ
,he
existing
battery
is
removed
with
the
power
OFF,
the stored
data
will
be lost.
2.
Since
commercial
batteries
cannot
be
used
as
is,
always
consult
your
YASKAWA
representative
when
replacing
the
battery.
(REPLACEMENT
PROCEDURE)
(1)
Depress
the
POWER
OFF
switch.
(2)
When
equipped
with
a
door
interlock switch
Open
the
front
door
and
pull
out
the
moving
part
of
the
door
interlock
switch
(There
is
a
one-stage
snap
action.)
—
Power
can
then
be
turned
on
with
the
front
door
open.
(3)
Open
the
front
door
sufficiently
so
the
NC
unit
board
mounted
on
the
inside
of
the
door
is
visible.
Depending
on
the
model,
the
NC
unit
may
be
mounted
on
the
main
body
instead
of
on
the door.
I
(4)
Switch
on
the
power.
(5)
Confirm
that
the
LED
(red)
of
the
FC200
module
lights.
If
this
LED
is
lit,
it
indicates
that
the
battery
“ERtiVS”
must
be
replaced.
The
layout
of
the
LED
and the
battery
is
shown
in
Fig.
4.2.1.
—
The
procedure
up
to
now
is
to
confirm
that
the
battery
ER6V3
(with
lead
connector)
is
defective.
(6)
Set
POWER
switch
to
OFF.
(7)
Remove the
old
batteiy
from
the
connector
and
take
it
out
of
the
holder.
(8)
Place
the
new
battery
in
the
holder
and
insert
the
connector.
fliSU)
The
connector
can
be
inserted
in
either
right
or
left
direction.
-
651