Operating instructions

4-8 Operating Instructions
3. Setting Up the Pattern
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Figure 4. 5- Example 1 pattern
Example 1: Cartoning {One End
Only)
P .t1108389A
57·28 119 3
Because the PC40 is digitally programmed, all pattern values can be
calculated and programmed in advance.
It may be helpful to draw a simple diagram of the pattern you want (like
the one shown in Figure 4.5). Leave sufficient space on your diagram
for recording trigger to gun and bead measurements. Measurements
should be made in
millimeters or inches.
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The following example assumes that the trigger and an appropriate
number
of guns have already been installed. Typically, one output
channel fires one gun to produce one bead sequence. More than one
gun may be controlled
by an output channel if two or more identical
bead sequences are required and
if the gun response times do not vary
significantly.
Assume the following:
• This is a dedicated line (only one carton size will be run with the
same pattern for each carton).
• Line speed is constant.
• The difference in gun-to-gun response ti me does not significantly
effect bead positions.
• A diffuse reflective sensor is being used in dark operate mode and
is located to sense the leading edge of the substrate.
• 8 watt solenoids are being used.
Measuring Distances
After you draw your pattern (as shown in Figure 4.5), you will need to
measure the length
of each delay and duration of your pattern. Write
the measurements on the drawing as shown in Figure 4.
6.
C Nordson CorporatiOn 1993
All R1g hts Reserved