HEIDENHAIN TNC 620 User Manual page 571

You may not use mid-program startup if the following
occurs after a tool change in the machining program:
The program is started in an FK sequence
The stretch filter is activated
The program is started in a threading cycle (cycles
17 , 206, 207 and 209) or the subsequent NC block
Touch probe cycles 0, 1 and 3 are used before the
program start
Go to the first block of the current program to start a block scan:
Enter GOTO "0"
Select block scan: Press the BLOCK SCAN soft key
Start-up at: N = Enter the number of the NC block
where the block scan ends
Program = Check, input or select the name and
path of the NC Program where the NC block is
located using the PGM MGT key
Repetitions = Enter the number of repetitions
which should be taken into account in the block
scan if the NC block is located within a program
section repetition
Confirm block scan: Press the OK soft key
Start bock scan: Press the NC START key
Approach the contour
With BLOCK SCAN in pallet tables, you must also
define a Line number = in the respective field. The
input refers to the line in the NR pallet table. This
input is always required as an NC program may
appear several times in a pallet table.
Entering a program with the GOTO key
If you use the GOTO key and the number of the NC
block 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
((LBL 0))
the TNC will reset function M126 (Shorter-path
traverse of rotary axes)
In such cases you must use the BLOCK SCAN
function.
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015
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