Fundamentals....................................................................................................................................... 468

11.2 Miscellaneous functions for program run inspection, spindle and coolant................................. 470

Overview.............................................................................................................................................. 470

11.3 Miscellaneous functions for coordinate entries..............................................................................471

Programming machine-referenced coordinates: M91/M92................................................................. 471

Moving to positions in a non-tilted coordinate system with a tilted working plane: M130.................. 473

11.4 Miscellaneous functions for path behavior.....................................................................................474

Machining small contour steps: M97.................................................................................................. 474

Machining open contour corners: M98............................................................................................... 475

Feed rate factor for plunging movements: M103................................................................................ 476

Feed rate in millimeters per spindle revolution: M136........................................................................ 477

Feed rate for circular arcs: M109/M110/M111......................................................................................478

Calculating the radius-compensated path in advance (LOOK AHEAD): M120 (Miscellaneous Functions

software option)................................................................................................................................... 479

Superimposing handwheel positioning during program run: M118 (software option Miscellaneous

functions)..............................................................................................................................................481

Retraction from the contour in the tool-axis direction: M140..............................................................483

Suppressing touch probe monitoring: M141....................................................................................... 485

Deleting basic rotation: M143..............................................................................................................486

Automatically retracting the tool from the contour at an NC stop: M148........................................... 487

Rounding corners: M197......................................................................................................................488

HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017

Table of Contents