36
CNC System Instruction
3.6.4 Repeat the above operation procedure until the desired effect is achieved.
3.6.5 To exit machining mode
In pause state, press [ESC] key to exit machining mode.
3.6.6 Total row number and beginning row in return process
The program segment for return allows 300 rows maximum. In case of breakpoint restoration(RESBREK) or machin-
ing section selection(SECTION), the return beginning row is the row containing the current breakpoint or the section
selecting row, upon which however the cutting torch is not allowed to return along the original path for machining.
3.7. Breakpoint Restoration Process
3.7.1.
Breakpoint restoration
In case of manual pause or power outage in machining operation, the system will automatically save the current position
of cutting torch as a breakpoint, which will be kept permanently in the system, whether power the system off or not.
In automatic mode, press [F2] key to select RESBREK function and then [START] key to start breakpoint restoration as
long as there is no change with the current program.
If the position of cutting torch does not change, the system will prompt "Breakpoint" when a breakpoint is found and wait
for subsequent command. User may select piercing directly or position adjustment of cutting torch. Refer to 3.4 for
details.
If the position of cutting torch does change and is off from the breakpoint, the system will provide three options when a
program
breakpoint
is
found,
which
is
virtually position adjustment of cutting torch.
ORI PATH RET:
To return to the breakpoint at speed G00, which is often used for the breakpoint set for cutting torch replacement;
CUT RET:
little bit off from the breakpoint after breakpoint restoration, whic is somewhat like piercing along the exterior margin, mak-
ing the breakpoint more smooth;
HOLE HERE:
the same operation as previous, which can also be used for transitional cutting.
Now, it is allowed to press a heavy
-
current function key such as IGN(ignition), PREHEA(piercing preheat), CUT(cutting oxygen), etc.
Tip: The system will continue to process from the breakpoint location if [PIERCE] key is pressed after preheating.
If press
[ESC]
key when a breakpoint is found, the system will exit machining mode.
3.7.2 Attention:
Never try to change the machining program, rotation angle and scaling proportion whether it is breakpoint
restoration or power
-
off restoration, which will be automatically saved by the system and free from affect by power
-
off
operation; otherwise, the system can not find the breakpoint.
Fig.3.5 Dialog box of restart options after system pause and breakpoint restoration
