YASKAWA yasnac i80m

2.13.1.2
Solid
tap
function
•*-
This
function
enables
tapping
to
be
completely synchronized
between
spindle
rotation
and
Z-axisfeed.
It
eliminates
the need
for
a
floating
chuck,
and thus
enables
high-speed,
high-accuracy
tapping.
Conventional
tapping
can
also
be
commanded
by
the
program.
(1)
Conditions
for
the
addition
of
solid
tap
function
The solid
tap
function
can
only
be
added
under
the
following
conditions:
(a)
S5-digit
analog
output
option
is installed.
(b)
The
spindle
drive
is
performed
by
the
VS-626MT
III
or
VS-626VM3
made
by
Yaskawa.
(c)
The
spindle
or
spindle
motor
is
equipped
with
PG,
and
the
gear
ratio
used
for
solid
tap
is
fixed
(for
equipment
where
the
spindle
and
motor
are
directly
coupled,
the
best
performance
can
be
obtained).
I
(2)
Description
of
programming
(a)
G
code
for
commanding
the solid
mode
In
order
for
tapping
using
the
solid
tap
function
and
tapping
of
the
conventional
type
to
be
discriminated,
the
following
G
codes
must
be
commanded.
•
G93—
Solid
tap
mode
command
(ON)
Solid
tap
is
executed
in
the
subsequent
tap
cycles
(GS4/G74
commands)
(per-rotation
feed
command
is
used).
No
machining
other
than
solid
tap
can
be executed
in
this mode.
•
G94
—
Solid
tap
mode cancel command
(OFF)
The
solid
tap
mode is
canceled,
and
the
conventional
mode is
entered.
Conventional
tap
is
executed
in
the
subsequent
tap
cycles
(per-minute
feed
command
is
used).
VISII3
G93/G94
are
G
codes
in
group
05,
and
are
modal. When
the
power
is
turned
ON
or
the
equipment
is
reset,
G94
is
set
by
default.
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