04.97
Programming of Traversing Blocks
v-t diagrams:
5000
1000
t
V
x
N10
N20
N30
t
V
y
N40
N50
N60
N70
5000
1000
t
V
Path
5000
1000
N10:
The X-axis moves in absolute dimension G90 at its axis velocity FX5000.00 to
position X10.000.
N20:
The Y-axis moves in absolute dimension G90 at its axis velocity FY2000.00 to
position Y10.000
N30
The X and Y-axes move together in absolute dimension to position X20.000/Y20.000,
each axis traversing at its own axis velocity FX5000.00/FY2000.00. As the X-axis has
to traverse the same distance, but moves at a higher axis velocity, it reaches its point
of destination earlier.
N40:
The X-axis moves on in incremental dimension G91 by X10.000, at its axis velocity
FX5000.00. Furthermore, the Y-axis is assigned the new velocity value FY3000.00.
N50:
The Y-axis moves on in incremental dimension G91 by Y10.000, at the new axis
velocity FY3000.00 assigned in N40. Furthermore, the X-axis is assigned the new
velocity value FX2000.00.
N60:
The X and Y-axes move together in absolute dimension G90 to position
X40.000/Y40.000, at the axis velocities FX2000.00/FY3000.00. As the Y-axis has to
traverse the same distance, but moves at a higher axis velocity, it reaches its point of
destination earlier.
N70:
The X and Y-axes move together in absolute dimension G90 at their new axis
velocities FX5000.00/FY5000.00 to position X50.000/Y50.000. As both axes traverse
the same distance at the same axis velocity, the path is a straight line.
In this example, "exact stop G60" is assumed to be the block transition
behaviour. In the chapter "block transitions", the different possibilities of
block transition are described in detail.
The programmed axis velocities refer to 100% override. Lower or higher
override values are taken into account in the axis velocities.
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Siemens AG 1997 All Rights Reserved 6ZB5 440-0VU02
4 – 9
WF 723 C (Programming Guide)
