
B–63523EN–1/03
9. SPINDLE SPEED FUNCTION
1109
In addition to the conventional (first) spindle, maximum four additional
(second, third, and fourth) spindles can be controlled. These additional
spindles allow two-stage gear changes. A single S code is used to
command to any of these spindles. The spindle to be commanded by S
code is determined by a signal from the PMC. The second, third, and
fourth spindle can change gears in 2 stages.
Also, the maximum clamp spindle speed can be individualy set to each
spindle to clamp the spindle speed of each spindle (set by parameters No.
3772, 3802, 3822, and 3850).
When the second spindle is used, a second position coder interface
channel is added. Selection between 1st position coder to 4th position
coder is made by a signal from PMC. (The conventional and additional
position coders are referred to as the first position coder and second
position coder, respectively, throughout the remainder of this discussion.)
When serial spindles are used as the third and fourth spindles, two
position coder interfaces can be added. (The position coders will be
referred to as the third position coder and fourth position coder.)
The spindle serial output option is required to use multi-spindle control.
If the third and fourth spindles (serial spindles) are needed, specify the
third/fourth spindle serial output function.
D For the M series, multi–spindle control is possible only when spindle
gear selection type T is selected (when the constant surface speed
control option is provided, or when GTT (bit 4 of parameter No. 3706)
is set to 1).
D For the M series, rigid tapping spindle selection signals RGTSP1,
RGTSP2, and RGTSP3 (G061#4, #5, and #6, when bit 7 of parameter
No. 5200 is set to 1) cannot be used. For details of rigid tapping, see
Section 9.11.
D When two–path control is performed with the M series, spindle
commands and position coder feedback signals cannot be changed
between the paths (spindle command select signals SLSPA and
SLSPB <G063 #2 and #3>, and spindle feedback select signals
SLPCA and SLPCB <G064 #2 and #3> are not available).
Two multi-spindle control methods are available. Type A allows the
SIND function (controlling the spindle motor speed based on the PMC)
to be used only for the first spindle. Type B allows the SIND function to
be used for each of the four spindles independently.
9.10
MULTI–SPINDLE
CONTROL
General
Difference in
multi–spindle control
between the M and T
series
Control