Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 485)

Angled-Wheel Grinding
Chapter 14
14-17
Wheel Length Offsets
When wheel length offsets are entered into the offset table both the
X(virtual) and W(real) axes allow entry. When a wheel length offset is
activated the control selects the offset value out of the offset table as
follows:
in Angled-Wheel Mode:
(G16.3 or G16.4)
X and Z offsets are used
not in Angled-Wheel Mode:
(G15) W and Z offsets are used
If a wheel length offset is activated manually (through the use of the
{ACTIVE OFFSET} softkey), the wheel length offset will be activated in
the normal angled wheel mode (G16.3).
Important: If you are using either the G89 or G89.1 cycles the active tool
offset when a micro-feed is aborted has special constraints. Refer to page
17-40 for details.
Work Coordinate System Offsets
When work coordinate system offsets are entered into the offset table both
the X(virtual) and W(real) axes allow entry. When the control activates a
work coordinate system, it selects the coordinate offset values out of the
offset tables as follows:
In Angled-Wheel Mode:
(G16.3 or G16.4)
X and Z offsets are used
Not in Angled-Wheel Mode:
(G15) W and Z offsets are used
This section covers features or considerations that must be taken into
account when using software overtravels, and programmable zones with an
angled-wheel grinder.
Software Overtravels
For details on what software overtravels are and how they work refer to
page 11-34. The system installer determines the location and operation of
the software overtravels. Since the X axis is a virtual axis, no software
overtravels are available to monitor the X axis. Software overtravel are
available that monitor the W and Z axis positions.
14.9
Overtravels and
Programmable Zones on an
Angled-Wheel Grinder