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NOTE
® Notes
related
to
G93
(at
Only G93, S,
F. and
N codes can be commanded in a
G93 block. If
any
other
code is
commanded,
alarm "250" results.
(b)
When
commanding G93,
make sure the G codes in
group
01
are
in
a GOO or G
01
state.
If commanded in
any
other
mode,
alarm "250" results.
(c)
S-code in the G93
(solid
tape!
mode is
handled
as
S-command
for solid
tap.
(dt
No G
codes other than those listed
below
can
be commanded during the G93
mode
(otherwise,
alarm "250"
results).
CommandableG codes: GOO. 01. 04.
70.
71. 72.
74, SO,
84. 90. 91. 98. 99
In
the case
of G01.
however,
move commands
cannot
be
given although
the
G code
may
be commanded.
(e)
(193
spindle dividing places the spindle
at a
fixed
position according
to
the origin
pulses
of the
spindle PG.
(f)
After
once starting
the G93
mode,
usually
the
spindle
will
not
rotate
even if the
mode
is
canceled
by
G94. unless
M0 3
or Mp4
is commanded
again. (Exception may
be programmed by
mechanical
sequence processing
i
Although S
commands
are
left,
gear
selection
signal
is
not output
in the Gi>3 mode.
Specify necessary S
commands
together
with M03
or
MU4.
If more
than
one gear
is provided,
select the
gear to
be used for solid tapping
before G93
is
commanded
and executed
© Notes related
to
G84/G74, G94 cancellation of
solid
tap
(a)
Concerning precautions on
the
method of command for R-point. Z-point. G98
/G99. G90/G91.
and
number of repetitions
(L),
those
on the
conventional
tap
program are applied as
is.
(b)
Signs
of the
output
voltages
for
spindle
forward rotation and
reverse rotation by
G84 and G74
are changed by
a
parameter.
When Pnilliiil 130
-
h. fi.rward rotation
is
output
with pusitive
(
+
)
sign:
when PmlOOl
DM- 1. forward rotation is
output
with
negative
(-1
sign.
For
spindle reverse
rotation. SIN
V input
is
not
used and
the rotation is
automatically
reversed
by
the controller.
tc)
When
commanding
G94 after
completion
of solid
tap.
be sure
to
cancel the
canned
cycle
with G80.
(d)
When G94 is commanded after
completion
of solid
tap,
F-command is
cleared
to
0.
So
be sure
to
command F when
commanding the cutting
feed
program
after
commanding
G94.
© Relationship between solid
tap
and various
operations
(a)
Dry run
Whether the
solid
lap
mode
or
the conventional
tap
mode should be executed
when
G93 is executed with the
dry run switch
ON
can
be selected
by
the
following
setting for
a
parameter.
I
pm4016
D6 =
0
Conventional
tap
mode
Solid
tap
mode
pni4016 D6= 1
If a
tap
mode is called
up
with the
setting
of
"pnvlOHj DG
= 1" and G93 is executed
with
dry run
switch ON'G93 becomes
invalid,
and the
GS4/G74 commands in
the
solid
tap
mode
are
handled
as
conventional
type
G84/G74.
The feed/min of G84/G74 is determined
by the setting
of
JOG
switch.
197
-
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