B–64113EN–1/01
9. SPINDLE SPEED FUNCTION
632
SWS2*SSTP2G027 *SSTP1 SWS1
#7 #6 #5 #4 #3 #2 #1 #0
PC2SLCG028 GR2 GR1
G029 GR21
G061 RGTSP2 RGTSP1 RGTAP
#7 #6 #5 #4 #3 #2 #1 #0
F001 ENB
F007 SF
F034 GR3O GR2O GR1O
F038 ENB2
F065 RGSPM RGSPP
F076 RTAP
The following describes some notes in designing the interface with the
PMC.
The PMC must manage rigid tapping mode as follows: rigid tapping
mode is set using M29, and is canceled upon the issue of a reset or at the
falling edge of the spindle enable signal ENB in rigid tapping mode. ENB
is used during rigid tapping in this way, so the spindle stop signal *SSTP
must not be set to “0”.
However, *SSTP and SOR may be used for gear switching. To do so,
ensure that the PMC does not cancel rigid tapping mode on a falling edge
of ENB while *SSTP is “0”. Rigid tapping mode may be set on a rising
edge of the RTAP signal instead of by using M29, and canceled on a
falling edge of the RTAP signal instead of the ENB signal.
In rigid tapping using the second spindle, the ENB2 signal must be used
for rigid tapping mode management.
When the SIND signal is set to “1”, spindle output is controlled by the
signals (SSIN, SGN, R1I to R12I) output from the PMC.
At this time, the effect of ENB is as described above. In addition, when
rigid tapping mode is canceled in a block containing G80;, the momentary
rotation of the spindle, caused by a delay in the PMC processing, can
result. Accordingly, the PMC’s control over spindle output must be
disabled in rigid tapping mode by setting SIND to “0”.
For the same reason, the PMC’s control over second spindle output must
be disabled in rigid tapping mode by setting SIND2 to “0”.
9.10.6.5
Signal addresses
9.10.6.6
Notes on interface with
the PMC
Rigid tapping mode
management and ENB
(or ENB2)
Controlling spindle
output by the PMC