
B–64113EN–1/01
9. SPINDLE SPEED FUNCTION
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When rigid tapping is completed, the mode is canceled if a G code (such
as G80, canned cycle G code, or Group 01 G code) is issued.
The S command used during rigid tapping is automatically cleared when
rigid mode is cancelled. This reduces the spindle output to 0, placing the
system in the state in which the S0 command is specified. Cancel the
PMC rigid tapping mode at the falling edge of the ENB signal (ENB2
signal for 2nd spindle) by de-energizing the spindle; then turn off the rigid
tapping mode signal. The system goes to the next block after confirming
that the signal is off.
When gear change is performed using
*
SSTP and SOR, the ENB signal
can be either “1” or “0”. Do not cancel the PMC’s rigid tapping mode at
the falling edge of the ENB signal under these circumstances. The
position loop is also canceled.
When the CNC is reset, the PMC’s rigid tapping mode must be canceled.
When CRG (parameter No. 5200#2) is “1”, the system goes directly to the
next block without checking that the rigid tapping signal is “0”. Set CRG
to “1” for systems in which the rigid tapping signal is always “1”.
G80
(or G code of group 01)
RTAP
ENB (orENB2)
Spindle output
RGTAP
Rotation
Excitation
Position loop
9.10.7.4
Timing to cancel rigid
tapping mode