Resuming program run after an interruption, 4 pr ogr am run – HEIDENHAIN iTNC 530 (340 420) ISO programming User Manual
Page 430

430
11 Test Run and Program Run
1
1
.4 Pr
ogr
am Run
Resuming program run after an interruption
When a program run is interrupted, the TNC stores:
n
The data of the last defined tool
n
Active coordinate transformations (e.g. datum shift, rotation, 
mirroring)
n
The coordinates of the circle center that was last defined
The stored data are used for returning the tool to the contour after 
manual machine axis positioning during an interruption (RESTORE 
POSITION soft key). 
Resuming program run with the START button
You can resume program run by pressing the machine START button 
if the program was interrupted in one of the following ways: 
n
The machine STOP button was pressed.
n
An interruption was programmed.
Resuming program run after an error
If the error message is not blinking:
U
U
U
U
Remove the cause of the error.
U
U
U
U
To clear the error message from the screen, press the CE key.
U
U
U
U
Restart the program, or resume program run where it was 
interrupted.
If the error message is blinking:
U
U
U
U
Press and hold the END key for two seconds. This induces a TNC 
system restart.
U
U
U
U
Remove the cause of the error.
U
U
U
U
Start again.
If you cannot correct the error, write down the error message and 
contact your repair service agency.
If a program run is interrupted during a fixed cycle, the 
program must be resumed from the beginning of the 
cycle. This means that some machining operations will be 
repeated.
If you interrupt a program run during execution of a 
subprogram or program section repeat, use the RESTORE 
POS AT N function to return to the position at which the 
program run was interrupted.
Note that the stored data remain active until they are reset 
(e.g. if you select a new program).
