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BOSCH
Flexible Automation
Description Stage 4 Chapter 1
o G92 Exx is not permitted for the E axis (TRA).
G92 programmed separately does not raset the
TRA
function.
o G46 deletes the previously programmed actual value
of
the E axis.
Example:
Ni
G45
Ni+l
Ni+2
G92
E20
G46
ESO
TRA
is
reset
Set
actual value
for
the E
axis
AcbJaI
value
for
the
E
axis
is
reset
o G75 (measuring probe input) is
not
permitted for the E axis TRA.
If G75 X .. Y .. Z .. is programmed, the
TRA
function may
not
be active.
CC
lOOM
User Manual
o Approach reference point is possible for all axes including E axis (TRA). Whilst the G74
block is being executed, the control
automatically resets the TRA function. After G74, G46
is
active
again.
o INCH/METRIC selection can
be
made for X, Y and
Z.
This does
not
affect the E axis. An
active
TRA
function
offsets E axis values
in
degrees
since
rotary axis parameters have
been
assigned to the E axis.
o Withdraw from contour and return
to
contour (REENTRY function)
is
possible with TRA.
o
The
maximum angle
of
rotation for the E axis TRA is 180
0
clockwise (positive angle entry)
or
180
0
counterclockwise for negative angle entry.
o If EXACT POSITIONING ON (G61) is active, the control first approaches the tangential
end position programmed with TRA before the next axis position is executed.
The
next axis position is executed immediately with EXACT POSITIONING
OFF
(G52) active
(power-up state).
o TRA moves along the programmed finished part contour
in
the selected working plane
asynchronously with respect
to the other .axes. In the case
of
significant circle contours,
tangential infeed may deviate from
the finished part contour. A warning indication is then
issued.
Application
of
the
parametric
functions
for
G45/G46
Options:
Load Ne addresses from variables
G=Vi E=Vj
(Vi=45145; -350 <= Vj
<=
360)
CPC test fUnction
TSTG46
Copy the E value
(mA)
to variable
Vi
mF=G45 Vi=E
TRF=Vj Vi=E (Vj=46)
Vi
is the TRA angle between E axis and contour. The position of the E axis is
not
entered
in
the
part program.
1
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