Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 347)

Chapter 11
Coordinate Control
11-31
3. Move the cursor to the parameter you want to change by pressing the
up, down, left, right cursor keys. The selected parameter appears in
reverse video.
4. Enter the new value for the parameter by using the keys on the
keyboard. The entered value appears on the input line (lines 2 and 3)
of the CRT. You can modify the value on the input line as described
in chapter 2.
5. When the value appears on the input line of the CRT, press the
[TRANSMIT] key. The value on the input line replaces the old
parameter value.
6. Repeat until all parameters display the desired values.
7. Activate the external part rotation feature by pressing the
{EXTERN ON/OFF} softkey. The external offset feature toggles
between on and off each time you press this softkey.
The work coordinate systems are all rotated as soon as the external rotation
feature is activated. The current work coordinate system can be changed
while an external part rotation is active. If changed, the new work
coordinate system is rotated as described by the external part rotation
parameters.
The “PROGRAM” and “TARGET” position displays (as described in
chapter 8) do not reflect an external part rotation since these values are
relative to the active work coordinate system.
Since “ABSOLUTE” position displays always show coordinates relative to
the machine coordinate system, they reflect an external part rotation.
External Part Rotation Parameters
PLANE
Use this parameter to select a plane for rotation. Enter the axis names that
define the plane to be rotated. Two separate values must be entered on this
line. The first axis entered here is the axis that the angle of rotation is
measured from. This parameter must match the active plane. If the
external and program-selected planes do not match, the control generates a
block decode error.