12 scaling – Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set User Manual

Page 364

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Coordinate Control

Chapter 11

11-48

This section contains the following subsections:

Topic:

On Page:

Scaling and Axis Position Display Screens

11-51

Scaling Magnification Data Screen

11-52

Scaling Restrictions

11-54

Use the scaling feature to reduce or enlarge a programmed shape. This
feature is enabled by programming a G14.1 block as shown below:

G14.1 X__ Z__ P__;

Where :

tell(s) the control :

X, and Z

the axis or axes to be scaled and the center of scaling for those axes. Can be
any valid axis name(s).

P

the scaling magnification factor for the specified axes.

The axes programmed in the G14.1 block determine which axes are scaled.
The corresponding axis word values specify the center of scaling for each
axis. This position is the axis coordinate around which the scaling
operation is performed.

The scaling magnification factor (P) is the amount of scaling to be applied
to the programmed axes. Each axis can have a different scale factor by
programming them in separate G14.1 blocks. The scaling range is from
0.00001 to 999.99999. A scale factor less than one reduces a programmed
move while a scale factor greater than one enlarges a programmed move.

If no P word is programmed or if P0 is programmed in the G14.1 block,
the control uses the default magnification factor. If the programmed P
word value is out of range, an error message is displayed on the CRT.

When absolute mode (G90) is active, scaling moves are referenced from
the programmed center of scaling.

11.12
Scaling

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