10. Spindle Functions
10.6 Multiple Spindle Control
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Relation with other functions
(1) Spindle clamp speed setting (G92)
This is valid only on the spindle selected with the spindle selection signal (SWS).
The spindle not selected with the spindle selection signal (SWS) maintains the speed at which
it was rotating at before being canceled.
(The spindle clamp speed is maintained with the G92 command.)
(2) Constant surface speed control
Constant surface speed control can be applied on all spindles.
The spindle rotation speed is automatically controlled during constant surface speed control, so
when machining with constant surface speed, the spindle selection signal (SWS) for that spindle
must be left ON.
The spindle not selected with the spindle selection signal (SWS) maintains the speed at which
it was rotating at before being canceled.
(3) Thread cutting/synchronous feed
The threads are cut with the spindle selected with the spindle selection signal (SWS). The
encoder feedback selected with the encoder selection signal is used.
(4) Synchronous tap
The synchronous tap spindle is selected with the spindle selection signal (SWS).
Select the synchronous tap spindle before issuing the synchronous tap command. Do not
change the synchronous tap spindle selection signal during the synchronous tapping mode.
If a C axis mode command is issued to the synchronous tap spindle, the "M01 operation error
1026" will occur. When the C axis command is canceled, the error will be canceled and
machining will resume.
If a polygon machining command is issued to the synchronous tap spindle, the "M01 operation
error 1026" will occur. When the polygon machining command is canceled, the error will be
canceled and machining will resume.
(5) Asynchronous tap
The asynchronous tap spindle is selected with the spindle selection signal (SWS).
Select the asynchronous tap spindle before issuing the tap command. Input a calculation request
to change the asynchronous tap spindle selection. Do not change the asynchronous tap spindle
selection signal during the asynchronous tapping mode.
(6) Tap return
The tap return spindle is selected with the spindle selection signal (SWS).
Select the spindle for which the tap cycle execution is stopped before turning the tap return
signal ON.
If tap return is executed when a different spindle is selected, the "M01 operation error 1032"
will occur. Do not change the spindle selection signal during tap return.
Restrictions
(1) The S manual value command is invalid when multiple spindle control II is valid.
(2) Setup parameter "#1199 Sselect" is invalid when multiple spindle control II is valid.
(3) The spindle control mode changeover G code cannot be used when multiple spindle control II is
valid. A program error (P34) will occur.
(4) The "S1=
∗∗∗
" and "S2=
∗∗∗
" commands are invalid when multiple spindle control II is valid. A
program error (P33) will occur.
(5) The spindle gear shift command output signal (GR1/GR2) is not output when multiple spindle
control II is valid.