Owner's manual

Skip, Gauge, and Probing Cycles
Chapter 27
27-21
The system i nstaller determines how many counts of the adaptive depth
probe constitutes c ontact with the part (a probe fired event AMPed as the
probe trigger tolerance). Multiple counts a re typically required because of
the potential for probe deflection from acceleration/deceleration or
machine vibration. This number of counts for the probe to fire is added
back into the current axis position for an accurate part surface location.
The position of the adaptive depth probe when it senses part contact is
handled by the control as follows:
ProbePosition when G26 Programmed: Results in:
Noprobe deflection when adaptive depth
axisstartsmoving.
Normal operation,controldrillstoprogrammedintegrand depth.
Probe isalreadydepressed some distance
whenadaptivedepth axisstartsmoving.
• Ifcurrentprobe deflection islessthanprogrammed integranddepththe
controlassumesitisexecuting eitherconsecutive G26 blockson thataxis
oritiscontinuing apreviously abortedadaptive depth move. The tool
continues ontointegrand depth.
• Ifcurrentprobe deflection ispastthe programmed integranddepththetool
retractstothenew integrandposition relative to the partsurface.
Noprobe deflection and the programmed
integranddepthis smallerthen the AMPed
probetriggertolerance.
The controlwillgeneratean errorsincethetoolwouldexceed the integrand
letterdepthbefore the probe fires. You musteitherincrease the drilling depth
(the integrandamountinblock)or your systeminstaller must,usingAMP,
decrease the probetriggertolerance.
The depth probe must fire before the programmed endpoint (G26 block
axis word) is reached. If the axis reaches the programmed endpoint before
the probe has fired, the control displays an error message and block
execution stops. You must reset the program block to continue.
Once the probe is depressed from a G26 block:
additional G26 blocks that use the probe can be executed. Once the
adaptive depth probe is fired and remains depressed, any G26 block can
position the adaptive depth axis using the adaptive depth probe for
position feedback. These G26 blocks must be consecutive e xcept for:
- non motion blocks
- blocks that do not position the adaptive depth axis
- non G26 blocks that completely move the adaptive depth probe
off of the part (probe position less than zero a t endpoint).