
B–63503EN–1/01
9. SPINDLE SPEED FUNCTION
461
[Classification] Input signal
[Function] When M29 (miscellaneous function for preparation for rigid tapping) is
specified, the PMC enters rigid tapping mode, then turns on this signal
to notify the CNC.
1 : The PMC enters in rigid tapping mode.
0 : The PMC does not enter rigid tapping mode.
For an explanation of placing the PMC in rigid tapping mode, see the
description of the interface with the PMC, given later.
This signal posts whether the PMC has entered rigid tapping mode. If this
signal is not set to 1, even when M29 is specified, a P/S alarm is issued
in a G84 (G74) block.
[Classification] Output signal
[Function] During rigid tapping, these signals notify the PMC of whether the spindle
is rotating in the forward or reverse direction.
During rigid tapping, the spindle is:
RGSPP 1 : Rotating in the forward direction (CW).
0 : Not rotating in the forward direction.
RGSPM 1 : Rotating in the reverse direction (CCW).
0 : Not rotating in the reverse direction.
[Output condition] These signals are output when the spindle is rotating in rigid tapping
mode. This means that, even in rigid tapping mode, these signals are not
output, for example, when the spindle is being positioned to a hole
position, or a dwell operation is in progress at the bottom of a hole or at
an R point.
These signals are not output in the feed hold state or single block stop
state. When the spindle is placed in the interlock stop state, machine lock
state, or Z–axis ignore state, however, the spindle is not regarded as
having stopped; these signals are output.
These signals are valid only in rigid tapping mode. In normal spindle
control, these signals are not output; both RGSPP and RGSPM are set to
“0”.
9.10.6
Signal
9.10.6.1
Signals for the rigid
tapping function
Rigid tapping signal
RGTAP<G061#0>
Spindle rotation
direction signals
RGSPM, RGSPP
<F065#1, #0>
(M series only)