Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 591)

Adaptive Feed & Depth Parameters
Chapter 32
32-5
The adaptive depth feature uses an adaptive depth probe that is attached to
an axis on the control. Typically a probe returns feedback very similar to
an A quad B incremental encoder. The control then uses this feedback to
determine the actual position of the axis the probe is attached to relative to
some surface that the probe is deflecting from (typically the part surface).
The adaptive depth probe is wired into a feedback port just as any other
incremental encoder feedback device. Refer to your integration and
maintenance manual for information on wiring feedback devices and
specifications for valid adaptive depth probes.
This section discusses AMP parameters that impact how the adaptive depth
probe operates. They are:
Parameter name: Page: Selects the:
Controlling Axis for Probe 32-9 axis that the adaptive depth probe is
attached to.
Probe Trigger Tolerance 32-11 amount of probe deflection necessary
for the control to assume contact with
the part has been made.
Depth sensor travel limit 32-12 maximum distance the probe will be
allowed to deflect.
Adaptive Depth Feedback Source 32-13 feedback device for positioning while
the probe is in contact with the part.
Select from either the controlling axis
feedback, or the probe feedback.
Direction of Probe Trip 32-10 Defines the direction from zero that
indicates probe deflection into the part.
In addition to these AMP parameters, you must also configure the adaptive
depth probe as a feedback device in the servo parameters group (analog or
digital).
Do this by first creating an axis. If you intend to use the feedback from the
probe to control positioning (only available after the probe has tripped),
many of the controlling axis’ parameters must also be copied to the
adaptive depth probe. This is not a real physical axis, it is only the name
of the adaptive depth probe and is for configuration purposes only. This
axis must be configured as having no output port. It will have a feedback
port only. You can mount the probe on any real physical axis connected to
the same servo card as the adaptive depth probe. The axis you mount the
probe on is selected with the Controlling Axis for Probe parameter and the
controlling axis name and its associated integrand letter is used when
programming the G26 block.
32.4
Adaptive Depth AMP
Overview