
3. Signal
Active offset change mode signal CHGAO<G297#4>
[Classification] Input signal
[Function] This signal selects the manual feed-based active offset change
mode.
[Operation] Setting this signal to "1" selects the manual feed-based active
offset change mode.
• Automatic operation is at pause or stop (STL<F000#5> is "0").
• HANDLE mode, INC mode, or JOG mode is selected.
Active offset selection signal AOFS1, AOFS2<G297#5,#6>
[Classification] Input signal
[Function] This signal selects the type of the changed offset in the manual
feed-based active offset change mode.
[Operation] Tool length compensation, cutter compensation, or workpiece origin offset
is selected in the manual feed-based active offset change mode according
to the following table.
AOFS2 AOFS1 Offset to be changed
0 0 Tool length compensation
0 1 Cutter compensation
1 0 Workpiece origin offset
Active offset changing signal MCHAO<F297#5>
[Classification] Output signal
[Function] This signal indicates that the manual feed-based active offset
change mode has been selected and the offset is being changed.
[Output condition] The signal becomes "1" when all the following conditions are satisfied:
• The active offset change mode signal CHGAO<G297#4> is "1".
• Automatic operation is at pause or stop (STL<F000#5> is "0").
NOTE
Before restarting automatic operation, make sure that this signal is "0".
Edit
Apprv.
Desig.
Sheet
Title
Draw
No.
6
10
Date
Design
Descri
tion
Date
FANUC Series16i/18i/21i–MA/MB
Changing Active Offset Value
with Manual Move.
02 030205 Overall revision
001106 S. Isohata E. Genma
A-78535E