HEIDENHAIN TNC 406 - Manual (Page 99)

78 5 Programming: Tools
5.1 Electr
odes
Manual electrode change
Before a manual electrode change, you must move the electrode to a
changing position. Course of actions:
„ Interrupt program run (see ”Interrupting machining” on page 223)
„ Move the electrode to the change position (can be programmed)
„ Change electrode
„
Resume the program run (see ”Resuming program run after an
interruption” on page 225)
Electrode change position
The electrode change position must be capable of being approached
without collision next to or over the workpiece.
The coordinates of the change position can also be entered as
machine-based coordinates with miscellaneous functions M91 and
M92.
If TOOL CALL 0 is programmed before the first electrode call, the TNC
moves the clamping shaft in the spindle axis to a position that is
independent of the electrode length.
Electrode compensation
You can compensate the electrode length and radius in a separate
program block.
8 Select the Programming and Editing mode of operation.
8 Select the EL-CORR function with the EL-CORR soft
key.
8 Undersize comp: Enter the undersize compensation.
Confirm your entry with the ENT key.
8 Electrode length comp:
Enter the electrode length compensation value.
Confirm your entry with the ENT key.
If no electrode length compensation: Press the NO
ENT key.
8 Electrode radius comp:
Enter the electrode radius compensation value.
Confirm your entry with the ENT key.
If no electrode radius compensation: Press the NO
ENT key.
Example
Effect on Q parameters
The EL CORR block influences the pre-assigned Q parameters Q108,
Q158 and Q159 (see also ”Electrode data: Q108, Q158 to Q160” on
page 203).
4 EL-CORR U+1 L R+0.5