Compensating The Machine Kinematics In Actual/Nominal Positions At End Of Block: M144 (Option 9) - HEIDENHAIN TNC 620 User Manual

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Compensating the machine kinematics in ACTUAL/
NOMINAL positions at end of block: M144 (option 9)
Standard behavior
If the kinematics change, e.g. by inserting a spindle attachment
or entering an inclination angle, the control does not compensate
this modification. If the operator does not take this modification to
the kinematics into account in the NC program, offset machining is
executed.
Behavior with M144
Refer to your machine manual.
The machine geometry must be specified by the
machine tool builder in the description of kinematics.
The M144 function enables the control to consider the modification
to the machine kinematics in the position display and compensate
the offset of the tool tip in relation to the workpiece.
Programming and operating notes:
Positioning blocks with M91 or M92 are permitted
while M144 is active.
The position display in the Program Run Full
Sequence and Program Run Single Block operating
modes does not change until the tilting axes have
reached their final position.
Effect
M144 becomes effective at the start of the block. M144 does not
work in connection with M128 or the Tilt Working Plane function.
You can cancel M144 by programming M145.
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Multiple-Axis Machining | Miscellaneous functions for rotary axes
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017