FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

B–62754EN/01
18. MEMORY OPERATION BY
FS15 TAPE FORMAT
PROGRAMMING
337
The R position is specified as an incremental value for the distance
between the initial level to the R position. For the FS15 tape format, the
parameter and the G code system used determine whether an incremental
or absolute value is to be used to specify the distance between the initial
level and the R position.
If bit 6(RAB) of parameter No. 5102 is 0, an incremental value is always
used. If it is 1, the type of value used depends on the G code system used.
When G code system A is used, an absolute value is used. When G code
system B or C is used, an absolute value is used in G90 mode, and an
incremental value is used in G91 mode.
FS15 tape format
Series
16/18/160/180
tape format
Bit 6 of parameter No. 5102 = 1
Bit 6 of parameter
No. 5102 = 0
G code system
A B, C
Incremental
Incremental
Absolute
G90 G91
Incremental
Absolute
Absolute Incremental
The correspondence between the G codes and this CNC tape format or
FS15 tape format is listed below. This list also provides notes on dwell
during a canned cycle.
No. Gjj (Use) This CNC command format
1. G81 (Drilling cycle)G83 (G87) P0 <Q not specified>
No dwelling
2. G82 (Drilling cycle)G83 (G87) P <Q not specified>
The tool always dwells at the bottom of the hole.
3. G83 (Peck drilling cycle) G83 (G87) <Type B>
If the block contains a P command, the tool dwells at the bottom of the
hole.
4. G83.1 (Peck drilling cycle) G83 (G87) <Type A>
If the block contains a P command, the tool dwells at the bottom of the
hole.
Note) Either type A or B is selected according to bit 2 (RTR) of
parameter No. 5101.
5. G84 (Tapping) G84 (G88)I
f the block contains a P command, the tool dwells after it reaches the
bottom of the hole and after it is retracted to the R position.
6. G84.2 (Rigid tapping) M29 S_ G84 (G88)
If the block contains a P command, the tool dwells before the spindle
starts rotating in reverse at the bottom of the hole and before it starts
rotating in the normal direction at the R position.
7. G85 (Boring cycle) G85 (G89) P0
No dwelling
8. G89 (Boring cycle) G85 (G89) P_
The tool always dwells at the bottom of the hole.
Parameter No. 5114 determines clearance d for G83 and G83.1.
D Specifying the R position
D Details of the canned
cycle
D Clearance d for G83 and
G83.1

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