HEIDENHAIN TNC 620 User Manual page 329

Pallets | Tool-oriented machining
Mid-program startup with block scan
You can also return to a pallet table after an interruption. The
control can show the line and the NC block at which the interruption
occurred.
The block scan in the pallet table is tool oriented.
After a block scan, the control can resume tool-oriented machining
if the tool-oriented machining method TO and CTO is defined in the
following lines.
Keep the following in mind for mid-program startup
The entry in the CTID field remains there for two weeks. After this
time, mid-programs startup is no longer possible.
Do not change or delete the entry in the CTID field.
The data from the CTID field become invalid after a software
update.
The control saves the preset numbers for mid-program startup. If
you change this preset, machining is shifted, too.
Mid-program startup is no longer possible after editing an NC
program within tool-oriented machining.
The following functions require special attention, particularly for mid-
program startup:
Changing the machine statuses with a miscellaneous function
(e.g. M13)
Writing to the configuration (e.g. WRITE KINEMATICS)
Traverse range switchover
Cycle 32 Tolerance
Tilting the working plane
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022
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