MC122 - MCP-4J Control Unit Section 5 - Operation
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Stitch Mode
Stitch Mode is very similar to Pattern Mode, with the exception that the glue “patterns” are applied in a stitch-like
pattern.
Setting the patterns for Stitch Mode is very similar to setting the patterns for Pattern Mode.
The difference between Pattern Mode and Stitch Mode is the application of the glue. The Pattern Mode applies a
continuous strip of glue for the pattern length specified. The Stitch Mode applies the glue in a stitch pattern for the
pattern length specified. To illustrate:
“Stitch Not Possible” Warning: If a valve channel has a long pattern, configured with a small stitch length and stitch
gap, it is possible to reach maximum table storage (maximum is 500 positions). If the pattern entered exceeds the
maximum, it may be cut short when gluing is attempted.
When a pattern is entered, the control calculates each time the valve is turned off or on (each transition between
stitches), storing the distances as encoder pulses between each of those transitions. The table has 500 positions
maximum.
Example: If a pattern of 100” were entered with stitch gap of 0.1”, there would be 1000 transitions. As a result, the
system would lay a 50” pattern and then shut off.
The “Stitch Not Possible” Warning symbol will appear if the pattern entered is not possible.
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