7 dual- axes on a dual- processing system – Rockwell Automation 8520 9/Series CNC Lathe User Manual

Page 777

Advertising
background image

Chapter 30

Using a 9/Series Dual--Processing System

30-37

Example 30.10

Changing Processes with Tool Offsets

Process One

Activates this Tool

Process Two

Activates this Tool

Shared Axis

T1010;

(controls shared axis)

T000;

Process one activates tool offset on shared axis as defined in AMP

(delayed/immediate shift/move). When process two takes control of the

shared axis, the shared axis tool offset is canceled on the shared axis until it

is returned to the process.

T1111;

(controls shared axis)

T1111;

Has same offset for both processes. When you shift the shared axis between

processes, the offset remains active on the axis. When the shared axis

changes processes the tool offsets are re-initialized and the AMP selected

activation method (delayed/immediate shift/move) still occurs.

T1111;

T2222;

(controls shared axis)

Process two activates tool offset on shared axis as defined in AMP

(delayed/immediate shift/move). When you switch the shared axis to

processes one, the offset changes to the tool offset value requested in

process one. Since the offsets are re-initialized when shared axes change

processes, the AMP selected activation method (delayed/immediate

shift/move) still occurs.

The Dual--Axis feature allows the part programmer to simultaneously
control multiple axes while programming commands for only one. It

differs from the split axis feature of the control in that the split axis feature

is used to control a single axis positioned by two servo motors.

The dual--axis feature is especially useful for twin turret lathes and other

machines running with parallel cutting tools. Figure 30.15 shows a typical

configuration for dual axes.

30.7

Dual- Axes on a

Dual- Processing System

Advertising