
B–64113EN–1/01
9. SPINDLE SPEED FUNCTION
609
WARNING
Do not switch between the first and second position coders
while a function that uses position coder feedback
information is being executed. That is, PMC signal PC2SLC
<G028#7> cannot be used while, for instance, a command
for feed per rotation or thread cutting is taking place.
CAUTION
1 If the primary spindle stop signal *SSTP for stopping all
selected (SWS1 to SWS3) spindles’ rotation is cleared, the
speed command is restored. A spindle not selected by
SWS1 to SWS3 and rotating at its previous speed, which is
stopped using its respective command *SSTP1 to *SSTP3,
cannot be restored to that speed when the signal is cleared.
2 Type A multi-spindle control differs from Type B in the
relationship between the SWS1 and SIND signals for the
first spindle. In Type B, SIND functions only when SWS1 is
set to “1”. In Type A, SIND functions whether SWS1 is “1”
or “0”; each spindle is selected by either of its respective
SWS1 or SIND signals being set to “1”.
NOTE
1 The spindle orientation signal, spindle speed override
signals, and spindle stop signal *SSTP only function for the
selected signals.
2 The S 12-bit code signals R01O to R12O outputs the state
of a selected spindle. If two or more spindles are selected
at the same time, the states of the first, second, third, and
fourth spindles are output in this order.
3 The multi-spindle function allows two position coder
interfaces to be used. But the number of actual speed
indications on the CNC screen does not change. The speed
based on the feedback information of the selected position
coder is displayed.
4 An SOR command has priority over S commands and
SIND-based rotation control from the PMC, and will cause
all selected spindles to perform orientation rotation.
Warning
Caution
Note