Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 119)

Section 3A
Primary 9/230 Components
3A-36
Wiring a Probe for Rising Edge Configurations
Typical wiring of a simple contactor type touch probe configured to fire on
the rising edge of the probe signal, requires the addition of a 1000 ohm pull
down resistor. Figure 3A.25 shows a typical wiring diagram compatible
with most probe designs configured to trigger on the rising edge of the
probes signal.
Figure 3A.25
Typical Wiring of a Touch Probe Configured for Rising Edge Trigger
4 3 2 1 TB2
1000 ohm
pull down resistor
(customer supplied)
Probe Contact
Wiring a Probe for Falling Edge Configuration
Figure 3A.26 shows a typical wiring diagram compatible with most probe
designs configured to trigger on the falling edge of the probe signal.
Figure 3A.26
Typical Wiring of a Touch Probe Configured for Falling Edge Trigger
4 3 2 1 TB2
Probe Contact
Use the Adaptive Depth probe feature to enable an adaptive depth probe
that monitors tool depth relative to the actual part surface. This feature
allows:
a more flexible part mounting system (small changes to part size or part
mounting do not require reprogramming of the machine or station)
greater accuracy with a less accurate machine drive system (tool
position is relative to the part surface rather than the machine home)
a retroactive change in axis positioning resolution (feedback for axis
positioning switches between the normal axis encoder and the adaptive
depth probe once the probe is triggered).
3A.10
Adaptive Depth Probing