Programming instructions

ADT-CNC4620 Programming Manual
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Finishing track Fast moving
Cutting feeding A: roughing reference point
A-B-C: program path Initial point
Execution process:
① Initial point → A1: fast moving;
② First roughing cycle: A
1
→B
1
→C
1→D1→A2
A
1
→B
1
, C
1→D1→A2: fast moving
B
1
→C
1: linear interpolation
③ Second roughing cycle: A
2
→B
2
→C
2→D2→An
A
2
→B2, C
2→D2→An: fast moving
B
2
→C2
: linear interpolation
④ The n
th
roughing cycle: A
n
→B
n
→C
n→Dn→A’
A
n
→B
n,
C
n→Dn→A’: fast moving
B
n
→C
n: linear interpolation
⑤ The last roughing cycle: A
’
→B
’
→C
’
→ initial point
A
’
→B
’
: fast moving
B
’
→C
’: interpolation depends on the mode specified by
ns→nf block. Interpolation
speed specifies F value or the F value in ns-nf block according to G72
block, and uses current default F value if not specified.
C
’
→ Initial point: fast moving. G72 roughing cycle ends.
Function description:
1) ns-nf block must follow G72 block. The system won’t execute the block written between
G72 block and ns block
2) The F value in G72 block is valid when executing G72 roughing cycle; if the F value isn’t
specified in G72 block, execute in current default value.
3) Pause and reset are valid in the motion process.