Programming manual
54
CNC 8070
4.
ORIGIN SELECTION
Zero offsets (G54-G59/G159)
(SOFT V02.0X)
52
4.4.2 Excluding axes in the zero offset (G157)
Excluding axes allows to select on to which axes the next absolute
zero offset will not be applied. After applying the zero offset, the
programmed axis exclusion is canceled and it has to be programmed
again in order to apply it again.
Activation
Axis exclusion must be programmed using function G157 followed by
the axes and the value indicating whether that axis is excluded
(<axis>=
1) or not
(<a
xis>=0).
The exclusion may also be activated by programming only the axes
affected by the exclusion after function G157.
The exclusion and the zero offset may be programmed in the same
block. In that case, the exclusion will be activated before applying the
zero offset.
Excluding axes does not affect the active zero offsets. If an axis is
excluded, when applying a new zero offset, the CNC maintains the
one that was active for that axis.
Considerations
Excluding axes does not affect the coordinate preset or the
incremental zero offsets which are always applied on to all the axes.
Likewise, neither fixture offsets nor PLC offsets are affected.
Properties of the function
Function G157 is modal and it remains active until an absolute zero
offset is applied.
On power-up or after an EMERGENCY, the CNC does not assume
any axis exclusion.
···
G55 (It applies the 2
nd
zero offset on all the axes)
···
G157 X Z (Activation of the exclusion on the X-Z axes)
G57 (It applies the 4
th
zero offset, except on the X-Z axes.
Those axes keep the previous zero offset)
···
G159=8 (It applies the 8
nd
zero offset on all the axes)
···
G59 G157 Y (It applies the 6
th
zero offset, except on the Y axis. That
axis keeps the previous zero offset)
···
G54 (It applies the 1
st
zero offset on all the axes)
···
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