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GSK980TDi Turning CNC System User Manual
92
Ⅰ
Programming
Command operations:
(taking example of returning to machine 2
nd
reference point as follows):
(1) Rapidly traverse to the middle position of command axis from the current position (A point
→
B point);
(2) Traverse from the middle point with the speed set by No.113 to the 2
nd
reference point set by
No.122 and No.123 (B point
→
R2 point);
(3) When CNC is not in the machine lock state, the completion signal of reference point return
ZP21 Bit0, Bit1 is high.
Starting point A
Z
X
Middle point
B
(
X
,
Z
)
The machine 2
nd
reference point R2
Note 1: Execute the machine 2
nd
, 3
rd
, 4
th
reference point return after you manually execute the machine
reference point return or G28 (machine reference point return).
Note 2: A
→
B and B0
→
R2, two axes separately traverse, and so their trails are linear or not.
Note 3: CNC cancels the tool length compensation after you execute G30 to return 2nd, 3rd, and 4th
reference point.
Note 4: Must not execute G30 (machine 2nd, 3rd, 4th reference point return) when the zero switch is not
installed on the machine.
Note 5: Do not set the workpiece coordinate system when you execute the 2nd, 3rd, and the machine 4th
reference point return.
3.16 Skip Interpolation G31
Command format:
G31 X(U)_ Z(W)_ F_;
Command function:
in executing the command, when the outside skip signal (X3.5) is input, the
system stops the command to execute the next block. The function is used
to the dynamic measure (such as milling machine), toolsetting measure
and so on of workpiece measure.
Command specifications:
non-modal G command (00 group);
X(U)__ Z(W)__
:
End point
F__
:
Cutting feedrate
P__
:
Skip signal address selection
,
its range:1
~
4
,
The
skip signal address from the corresponding P1
~
P4 are set by parameters
№
148
~
№
151, it is
regarded as 1 by default when the P value does
not input.
Note:
1) Cancel the tool nose radius compensation before using it;
2) Feedrate should not be set to too big to get the precise stop position;