Graco InvisiPac HM25 Operation, Repair, And Parts page 32

Screens
General Setup (Screen 4)
1. Lock pattern definition (optional) — Protects pattern
from accidental changes. Operator must enter a
password to change patterns, and copy, delete, or
rename programs.
NOTE: This setting will only take effect if run
screens are also locked. See Advanced Screens,
page 35.
2. Invert disable input (optional):
• Used to invert the polarity of the PLC disable input
signal. See PLC Inputs and Outputs Installa-
tion, page 19.
• If selected, disable signal must be pulled high to
allow the pattern controller to dispense.
• If not selected (default), disable signal must be
pulled high to disable the pattern controller from
dispensing.
3. Enable pressure compensation (optional PC-8e
only):
• Used to maintain consistent glue output with vari-
able line speed.
• With run-up kit installed, this feature adjusts pump
pressure according to the output vs. speed curve.
For run-up settings, see Run Up Control, page
34.
4. Enable modulated bead (optional, PC-8e only):
A - Enter screen
P - Screen number (Screen 4)
32
• Used to maintain consistent glue output with vari-
able line speed.
• Adjusts output by stitching beads according to the
output vs. speed curve.
• When pressure compensation is enabled, modu-
lated bead becomes active below the minimum
output percentage.
• When pressure compensation is disabled, modu-
lated bead follows the output vs. speed curve. For
run-up settings, see Run Up Control, page 42.
5. On stop (PC-8e only):
• Clear queue (default): Products in process stop
when the line stops and do not continue when the
line restarts. Products queued between the trigger
and gun will also be cleared when the line stops.
• Keep queue: Products in process stop when the
line stops and do not continue when the line
restarts. Products queued between the trigger
and gun are kept when the line stops and pro-
cessed when the line restarts. Products in the
queue can be manually cleared by turning the
system off and back on using the power button.
• Pause: Products in process pause when the line
stops and continue when the line restarts. Prod-
ucts queued between the trigger and gun are kept
when the line stops and processed when the line
restarts. Products in process and in the queue
can be manually cleared by turning the system off
and back on using the power button.
A
P
334784G