
B-63944EN/02 PROGRAMMING 7.COORDINATE SYSTEM
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Limitation
- Shift amount and coordinate system setting command
Specifying a coordinate system setting command (G50 or G92)
invalidates the shift amount that has already been set.
Example) When G50X100.0Z80.0; is specified, a coordinate system
is set so that the current base position of the tool is at X =100.0 and Z
= 80.0, regardless of which value has been set for the workpiece
coordinate system shift amount.
- Shift amount and coordinate system setting
After a shift amount is set, when automatic coordinate system setting
is performed upon manual reference position return, the set coordinate
system is immediately shifted by the set amount.
- Diameter and radius values
The workpiece coordinate system shift amount depends on diameter
programming or radius programming.
Example) Although the base point should be positioned at X =
φ120.0 (diameter value) and Z = 70.0 from the workpiece
origin, the actual position is at X = φ121.0 and Z = 69.0
from the origin. Set a shift amount as shown below:
X=1.0, Z=-1.0
Z
X
69.0
Start point = base
point
φ
121.0