
A-79341E
Title
Draw
No.
Ed. Date Design Description
Date
Jan.06.’04 Design. Apprv.
page
FANUC Series 30i-MODEL A
ACTIVE OFFSET VALUE CHANGE
FUNCTION BASED ON MANUAL FEED
Jan.06.’04
New design
13/22
NOTE
To change the tool offset value for the Y-axis, the option for Y-axis offset is
required.
・Changing a tool offset value
The tool offset value with the offset number corresponding to an T code specified in
automatic operation is changed. If there is no currently valid tool offset value as in a case
where no T code is specified after a cycle start, tool offset value change is made even when a
movement is made on an axis by manual feed.
By making a movement on a basic axis (X, Z, or Y), a tool offset value change can be made.
With a movement on a rotation axis, no tool offset value change can be made. While a tool
offset value is being changed, a movement by manual feed can be made on one axis only.
Example
・Specified T code: T0110
・Value set with offset number 10: 54.700 mm
・Travel distance on the Z-axis by manual feed: -2.583 mm
In this example, the Z-axis value for tool offset value number 10 is:
54.700+(-2.583) = 52.117 mm
NOTE
A changed tool offset value is handled according to bit 6 (EVO) of
parameter No. 5001 and bit 6 (AON) of parameter No. 5041.
・Changing a workpiece origin offset value
The workpiece origin offset of the workpiece coordinate system corresponding to a G code
from G54 to G59 or from G54.1 P1 to P48 (300) specified during automatic operation is
changed on an axis-by-axis basis. A valid workpiece coordinate system exists at all times.
So, when a movement is made on an axis by manual feed, the workpiece origin offset of the
workpiece coordinate system is changed without fail. This change can be made by a
movement on an arbitrary axis, which may be a linear axis or a rotation axis. While a
workpiece origin offset change is being made, movements can be made on multiple axes by
manual feed.
Example
・Specified workpiece coordinate system:G56
・Workpiece origin offset of G56 (X axis): 50.000
・Workpiece origin offset of G56 (Z axis): 5.000
・Workpiece origin offset of G56 (C axis): 180.000
・Workpiece origin offset of G56 (Y axis): -60.000
・Travel distance on the X axis by manual feed: -10.000mm
・Travel distance on the Z axis by manual feed: 10.000mm
・Travel distance on the C axis by manual feed: 90.000deg
・Travel distance on the Y axis b
manual feed: -5.000mm