HEIDENHAIN TNC 128 (77184x-02) - Manual (Page 339)

Program run 13.5
13
TNC 128 | User's Manual HEIDENHAIN Conversational Programming | 5/2014
339
Any entry into program (mid-program startup)
The
RESTORE POS AT N feature must be enabled and
adapted by the machine tool builder. Refer to your
machine manual. Refer to your machine manual.
With the
RESTORE POS AT N feature (block scan) you can start a
part program at any block you desire. The TNC scans the program
blocks up to that point. Machining can be graphically simulated.
If you have interrupted a part program with an
INTERNAL STOP, the
TNC automatically offers the interrupted block N for mid-program
startup.
Mid-program startup must not begin in a
subprogram.
All necessary programs, tables and pallet files must
be selected in the
Program Run, Single Block and
Program Run, Full Sequence operating modes
(status M).
If the program contains a programmed interruption
before the startup block, the block scan is
interrupted. Press the machine
START button to
continue the block scan.
After a block scan, return the tool to the calculated
position with
RESTORE POSITION.
Tool length compensation does not take effect until
after the tool call and a following positioning block.
This also applies if you have only changed the tool
length.