Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set User Manual
Page 87
Offset Table and Setup
Chapter 3
3-13
2.
Press the
{TOOL GEOMET}
or the
{TOOL WEAR}
softkey. It does not
matter which softkey is pressed. Any changes made to the active
offset number on the tool geometry screen also activates the same
offset number on the tool wear screen as well and vice versa.
(softkey level 2)
WORK
CO-ORD
TOOL
WEAR
TOOL
GEOMET
TOOL
MANGE
RANDOM
TOOL
COORD
ROTATE
BACKUP
OFFSET
SCALNG
The tool offset table is displayed. Currently active offset values (if
any) are indicated with an * to the left of the offset value.
3.
Move the cursor on the offset table until the desired offset is shown in
reverse video. If it is desired to activate a length offset (normally
programmed with an H--word), make sure the selected offset value is
in the “LENGTH” column. If it is desired to activate a diameter or
radius offset (normally programmed with a D--word), make sure the
selected offset value is in the “DIAMETER” column. Only one
length offset and one diameter offset may be active at the same time.
4.
Press the
{ACTIVE OFFSET}
softkey when the desired offset is
selected. The offset will be made active provided that that offset
mode is active on the control G41 or G42 for tool diameter offsets
and G43 or G44 for tool length offsets. See chapter 20 and 21 for
details on programming these tool offsets.
(softkey level 3)
SEARCH
NUMBER
REPLCE
VALUE
ADD TO
VALUE
ACTIVE
OFFSET
MORE
OFFSET
MEAS-
URE
INCH/
METRIC
NEXT
AXIS
PREV
AXIS
COPY
OFFSET
If the tool length offset is currently active (G43 or G44), then the new tool
length offset will go into effect immediately (the coordinate system is
shifted). The next time cycle start is pressed, the control will generate and
execute a block that will move the cutting tool back to the coordinate
location in the work coordinate system that it was at before the shift to the
coordinate system took place. If the control is currently in G49 mode, then
only the H--word is activated until a G43 or G44 is programmed.
If cutter compensation is active (G41 or G42) and the control is not
currently in MDI mode, then the new radius is activated as discussed in
chapter 21. If G40 is currently active, then only the D--word is activated
until a G41 or G42 is programmed.