Measurement For Defining An Additive Rotation For Taper Turning (Measurement Type 28) - Siemens SINUMERIK 840D sl Function Manual

M5: Measurement
8.5 Setting zeros, workpiece measuring and tool measuring
8.5.3.16

Measurement for defining an additive rotation for taper turning (measurement type 28)

Additive rotation of the plane for taper turning ($AC_MEAS_TYPE = 28)
Measuring type 28 can be used to specify an additive rotation through an angle in the range
of α = +/- 90° of the active or a certain plane. The rotation takes place on the coordinate axis
at right angles to the plane.
Figure 8-17
Application
With taper turning, the active plane is rotated by the taper angle, whereby the rotation is written
in the active cycle frame. With RESET, the cycle frame is deleted. Re-activation may be
necessary. The selection of the cycle frame is made depending on the SZS position display.
If after activation of the rotation, e.g. with active plane G18, traversing is performed in the
direction of z', the actual positions of the corresponding axes change simultaneously for x and
z
Rotations with active planes G17 and G19 behave similarly and are displayed in the above
figure. The values of the following variables are evaluated for measurement type 28:
Input variable
$AC_MEAS_VALID
$AC_MEAS_WP_SETANGLE
$AC_MEAS_ACT_PLANE
$AC_MEAS_FRAME_SELECT
$AC_MEAS_INPUT[0]
$AC_MEAS_TYPE
* optional
The following output variables are written for measurement type 28:
Output variable
$AC_MEAS_FRAME
558
Rotation of the planes G17, G18 and G19 by angle α = +30°
Meaning
Validity bits for input variables
Setpoint angle
Rotation is through the active plane unless otherwise specified *
Calculated as additive frame unless otherwise specified *
1: Taper turning is active. *
28
Meaning
Result with rotation
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions