HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 264)

01.98
TNC 407/TNC 415/TNC 425 6 Display and operation 4-139
Feed-rate for rotary axes
The TNC interprets the programmed feed-rate for a rotary axis in degrees/min. The contour feed-rate
is therefore governed by the distance of the tool centre from the centre of rotation of the rotary axis.
When M function M116 is activated the contour feed-rate is interpreted in mm/min., i.e. the feed-
rate is now independent of the distance of the tool centre from the centre of rotation of the rotary
axis.
M116 is automatically cancelled by PGM END. M116 is only active when the centre of rotation of a
rotary axis is defined in machine parameters MP7510 ff.
6.4.4 Display of the M-functions
The miscellaneous functions for control of the spindle (M03, M04, M05) and the coolant (M08, M09) are
displayed in the status window. The display of these M-functions is controlled by the PLC, i.e. the
manufacturer of the machine must take this into account when creating the PLC-program. The markers
M2485 and M2486 also change the polarity of the analogue voltage for the spindle. M2608 switches off
the analogue output for the Spindle. The programmed spindle-speed is, however, still displayed (see
section "Main spindle").
The display of other M-functions can be achieved in the PLC-window (see chapter "PLC-description",
section "Modules")
Marker Function Set Reset
M2485 Status display and sign of S-analogue for M03 PLC PLC
M2486 Status display and sign of S-analogue for M04
M2487 Status display for M05 and spindle stop
M2608 Status display M03, M04, M05 inverse and S-analogue output = 0V
M2508 M2657 Display
0 0 M09
0 1 M07
1 0 M08
1 1 MK
M2609 Status-display M07, M08, M09 inverse