HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 338)

01.98
TNC 407/TNC 415/TNC 425 13 Hirth coupling 4-213
13.3 Program example
The positioning of the 4th axis and locking by the Hirth coupling is described in the following
example. The following machine parameters and markers are required for the example:
MP420.3 Activate Hirth coupling axis 4
1 = active, 0 = not active
MP4310.1 W978 Direction for PLC positioning for repositioning
MP430.3 Hirth grid axis 4
MP960.3 Shift Hirth grid against reference mark
(machine datum)
MP4210.3 D776 Positioning window for PLC positioning
MP4201.3 D780 Input resolution for controlled mode
MP4220.3 W966 Feed rate for PLC positioning
W540 PLC Position for axis 4
W566 Feed rate for PLC position
D12 Actual value (Ref. related)
D20 Trailing error
D36 Hirth grid left of nominal value
D40 Hirth grid right of nominal value
D44 Nominal grid value
D28 Hirth grid
Hirth positioning in controlled mode
L
M0 ;create logic zero
R M0
LN M1 ;create logic one
S M1
Activate initializing after switch-on (Module 290)
L
M2180 ;first PLC cycle after switch-on
O M2185 ;first PLC cycle after interruption
CMT 290 ;read MP420.3
L M301 ;Hirth function active
A M304 ;Submit 1 terminated
CMT 292 ;read Hirth grid MP430.3
L M2011 ;axis 4 in position
A M305 ;Submit 2 terminated
S M302 ;Switch-on delay terminated
Interrogate operating mode
L
M2053 ;positioning with manual input
O M2054 ;program run/single block
O M2055 ;full sequence
= M5 ;controlled mode