
B–63833EN–1/02
9. SPINDLE SPEED FUNCTION
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The Cs contour control function positions the serial spindle using the
spindle motor in conjunction with a dedicated detector mounted on the
spindle.
This function can perform more accurate positioning than the spindle
positioning function, and has an interpolation capability with other servo
axes.
Least input increment: 0.001 [deg]
Least command increment: 0.001 [deg]
"99999.999 [deg]
Rapid traverse rate: 6 to 240000 [deg/min] (parameter no.1420)
Cutting feedrate (feed per minute):
1 to 240000 [deg/min] (rotation axis)
The speed of the serial spindle is controlled by the spindle speed control
function, while the spindle positioning is controlled by the Cs contouring
control function (“spindle contour control”). Spindle speed control
rotates the spindle using the velocity command, while the spindle contour
control rotates the spindle using the move command.
Switching between spindle speed control and spindle contour control is
performed by the DI signal from the PMC.
In the Cs contour control mode, the Cs contour control axis can be
operated either manually or automatically, in the same way as normal
servo axes.
(For a reference position return, see the relevant description in this
section.)
The axis used for Cs contour control must be set as an axis of the axes
controlled by the CNC. Using parameter no. 1023, assign “*1” in the
field corresponding to the chosen servo axis. Also set the spindle contour
control axis as a rotation axis by setting ROTx of parameter No. 1006#0
and No. 1022.
Only one set of this setting can be used. The spindle that operates under
Cs contour control is a serial spindle as the first spindle.
9.8
Cs CONTOUR
CONTROL
General
D Increment system
D Maximum command
value
D Feedrate
Explanations
Setting the Cs contour
control axis