Fagor 8055 M - Axes Toggle G28-G29

·130·
Programming manual
CNC 8055
CNC 8055i
7.
ADDITIONAL PREPARATORY FUNCTIONS
·M· & ·EN· MODELS
SOFT: V02.2X
Axes toggle G28-G29
7.9 Axes toggle G28-G29
With this feature, on machines having two machining tables, it is possible to use a single part-
program to make the same parts on both tables.
With function G28 the axes can be toggled from one to the other in such way that after that instruction
all the movements associated with the first axis next to G28 will take place on the second axis next
to G28 and vice versa.
Programming format:
G28 (axis 1) (axis 2)
To cancel the toggle, execute function G29 followed by one of the axes to be toggled back. Up to
three pairs of axes may be toggled at the same time.
The main axes cannot be toggled while the C axis is active on a lathe.
On power-up, after executing an M30 or after an emergency or reset, the axes are toggled back as
long as G48 or G49 is not active.
Example. Let us suppose that the part program is defined for table 1.
1. Execute the part-program on table 1
2. G28 BC. Toggle the "B" and "C" axes
3. Zero offset for machining on table 2.
4. Execute the part-program.
 It will be executed on table 2.
 In the meantime, replace the part made on table 1 with a new one.
5. G29 B. Toggle the BC axes back.
6. Cancel zero offset to machine on table 1.
7. Execute the part-program.
 It will be executed on table 1.
 In the meantime, replace the part made on table 2 with a new one.