
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
2/22
1.1 ACTIVE OFFSET VALUE CHANGE FUNCTION BASED ON
MANUAL FEED (FOR THE MACHINING CENTER SYSTEM)
Overview
When rough machining/semifinish machining is to be performed using a single tool, you may
make a fine adjustment of a tool length compensation value or cutter compensation value.
Moreover, at setup time, you may want to make a fine adjustment of a workpiece origin offset
once set. With this function, a travel distance moved on an axis by manual feed is
automatically added to the workpiece coordinate system or the currently valid offset number
among the specified offset values (tool length compensation value/cutter compensation
value/workpiece origin offset) to make a offset value change.
Explanation
・Active offset value change mode
The active offset value change mode is set using the active offset value change mode signal.
In this mode, a travel distance moved on an axis by manual feed is automatically added to the
workpiece coordinate system or the currently valid offset number among the specified offset
values (tool length compensation value/cutter compensation value/workpiece origin offset).
The types of manual feed usable to make an offset value change in this mode are manual
handle feed, incremental feed, and jog feed.
・Specifying an offset value to be changed
The active offset selection signal is used to specify one of three types of offset values: tool
length compensation value, cutter compensation value, and workpiece origin offset. In the
active offset value change mode, an offset value selected is indicated by blinking display in
the state display area on the screen as follows:
Offset value selected State display
Tool length compensation value
LEN
Cutter compensation value
RAD
Workpiece origin offset
WZR
・Changing a tool length compensation value
The tool length compensation value with the offset number corresponding to an H code
specified in automatic operation is changed. If there is no currently valid tool length
compensation value as in a case where no H code is specified after a cycle start, no tool
length compensation value change is made even when a movement is made on an axis by
manual feed.
With a movement on a linear axis, a tool length compensation value change can be made.
With a movement on a rotation axis, no tool length compensation value change can be made.
While a tool length compensation value is being changed, a movement by manual feed can be
made on one axis only.