Additive Basic Rotat. (W-Cs) - HEIDENHAIN TNC 640 User Manual

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Additive basic rotat. (W-CS)

Refer to your machine manual.
Your machine tool builder can also disable individual
settings possibilities within the Global Program Settings
function.
The Additive basic rotat. (W-CS) option specified in the Global
Program Settings function provides a coordinate transformation in
the W-CS workpiece coordinate system.
Further information:
page 147
The additive basic rotation specified in the Global Program
Settings function is effective after the basic rotation or basic
3-D rotation and thus is based on this movement. This means
that the value is not simply added to the SPC value of Preset
management.
Further information:
and page 716
Control display
Like the basic rotation from Preset management (SPC column),
the additive basic rotation specified in the Global Program
Settings function does not affect the actual position display.
The general status display shows the following icons:
Active basic rotation from Preset management
Active basic 3-D rotation from Preset management
Additive basic rotation active (default icon of the
Global Program Settings function)
The control displays the additive basic rotation values on the
GS tab of the additional status display, the values from Preset
management can be found on the POS tab.
Application example
Rotate the CAM output by -90°:
CAM output for gantry-type milling machine with a large range
of traverse of the Y axis
Available machining center with a limited range of traverse of
the Y axis (X axis has the required range of traverse)
The workpiece blank is clamped with a 90° rotation (long side
parallel to the X axis)
Thus, the NC program must be rotated by 90° (algebraic sign
depends on the preset position)
The 90° rotation is compensated by means of the Additive
basic rotat. (W-CS) option
Open the Global Program Settings function
Activate the Additive basic rotat. (W-CS) option, specifying 90°
Reselect the NC program
The control considers the 90° rotation for all axis positioning
movements.
504
"Workpiece coordinate system W-CS",
"Measuring 3-D basic rotation", page 719
Special Functions | Global Program Settings (option 44)
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017