LINK Systems OmniLink 5000 - Manual (Page 26)

3-5
Figure 3.8
One Part Detector input timing
“Programming Window Setpoints” in Section 2). The Window ON angle should be set to a point
well before the feed takes place. The Window OFF angle should be set to a point after the material
has been fed into place and is making contact with the sensor. If the material is not in contact with
the sensor when the timing window turns off, a fault will be generated. The OFF angle must also
be set so that the fault will stop the press before the die closes. An illustration of the In Position
timing sequence is shown in Figure 3.7.
Section 3.5 1 Part Detector-Edge and 1 Part Detector-Pass
The One Part Detector input type is used to
monitor parts ejection for dies producing one part
per stroke. The 1 Part input type functions much
like the Cyclic type, the difference being that the
timing window must turn on before, not while,
the part is being ejected (activating the sensor).
In other words, the Part Detector type requires
that the sensor NOT be active when the window
turns ON, and then become active at some point
during the window.
When programming an input as a Part Detector
type, the operator must choose whether it will be
required for the part to completely pass the detector during the timing window. If it is desired that
the part completely pass (i.e., the detector will become inactive again before the timing window turns
off), then the input should be programmed as '1 Part Detector-Pass'. If it is only required that the
part enter the detector during the window but does not have to completely pass through until after
the window, then the input should be programmed as '1 Part Detector-Edge'. This signifies that only
the leading edge of the part must be seen during the window, as might be the case for a very long
part. (See Programming Window Setpoints” in Section 2 for timing window entry instructions.)
Note: If the input is programmed as ‘1 Part Detector - Pass’, the sensor is not allowed to
become active outside the window or a fault will be generated. This provides protection against
a part ‘bouncing’ on a probe-type detector and satisfying the die protection input erroneously.
The Window ON angle should be set to a point well before the part is ejected. The Window OFF
angle is dependent on whether the ‘Edge’ or ‘Pass’ type is used, as shown in Figure 3.8.
An illustration of the Link 3040 Infrared Parts Detector is shown in Figure 12. Examples of other
probes used with Part Detector inputs are shown in Figure 13.
Section 3.6 2 Part Detector-Edge and 2 Part Detector-Pass
The Two Part Detector input type is used to monitor parts ejection for dies producing two parts per
stroke. The ejection of parts must be sequenced so that they do not overlap when ejected, or the