HEIDENHAIN TNC 640 (34059x-01) ISO programming - Manual (Page 431)

HEIDENHAIN TNC 640 431
15.5 Pr
ogr
am r
u
n U Go to the first block of the current program to start a block scan:
Enter GOTO "0"
U Select mid-program startup: Press the MID-
PROGRAM STARTUP soft key, or
U Start-up at N : Enter the block number N at which the
block scan should end
U Program : Enter the name of the program containing
block N
U Repetitions : If block N is located in a program section
repeat or in a subprogram that is to be run repeatedly,
enter the number of repetitions to be calculated in the
block scan
U Start mid-program startup: Press the machine START
button
U Contour approach (see following section)
Entering a program with the GOTO key
If you use the GOTO block number key for going into a
program, neither the TNC nor the PLC will execute any
functions that ensure a safe start.
If you use the GOTO block number key for going into a
subprogram,
„ the TNC will skip the end of the subprogram (G98 L0)
„ the TNC will reset function M126 (Shorter-path traverse
of rotary axes)
In such cases you must always use the mid-program
startup function.