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(3)
Solid
tap-related
functions
By adding the
solid
tap
functions (optional), the
following
functions
are
added
or
modified.
(a)
Display of servo position
deviation
The
servo position
deviation
display screen during the
solid
tap
mode.indicates
the
spindle servo position deviation value on X-axis,
and the number of
synchronization error pulses of spindle
and
Z-axis
on
Y-axis.
(Z-axis
servo position
deviation value is indicated
on
Z-axis.)
However,
the
pulse display
on
Y-axis is
not
exact
when in the
continuous mode
(single-block OFF).
Also
note
that when
parameter
Pm4015
D6=l,
the peak values of
synchronization error pulse can
be displayed on X-and Z-axis.
(X-
,
axis:
positive peak value;
Z-axis:
negative peak
value)
(b)
Error detection
during
solid
tap
By setting
parameter
Pm4015 D5
to
"1."
it is
possible
to
place rapid
feedrate commands
during
solid
tap
(X,
Y
positioning,
Z-axis
positioning)
into the error detect OFF mode. When this
parameter
is turned ON, the cycle time
can
be reduced.
I
*n this case-
however,
control advances
to
the Z-axis block
immediately
after X, Y
positioning pulse
distribution is
completed,
so
care
should be taken for the
program.
-
199
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