Rockwell Automation GMLC Reference Manual - Manual (Page 333)

Publication GMLC-5.2 - November 1999
296 I/O and Event Blocks
With output cams, the actuation delay value compensates for the intrinsic
device actuation delay. Enter the actual actuation delay of the device in
seconds. Make sure to include significant delays in any optical isolation
circuitry. As the speed of the axis increases, the position window
advances proportionally to the speed of the axis and the actuation delay
value.
Proximity Switch
Cam Wheel
Phase
Advance
Start of
Window End of
Window
Axis Position
ON
OFF
Axis Position
ON
OFF
Position Window
Low
Axis Speed
High
Axis Speed
Phase Advance
Proportional to Axis Speed
Position Window