ITW Diagraph PA/4600, User Manual

Page: 41 / 53

Diagraph - an ITW Company PA/4600 & PA/6000 User Manual
Troubleshooting Page 40
Tr
oubleshooting
Label buckles on the tamp pad. Vacuum set too high Decrease vacuum in 5 psi
increments until label lays flat
on the pad.
Tamp pad vacuum channels are
incorrectly ported
The first column of holes should
be open, matching the width of
the label. Last column of holes
(matching the label’s length)
should be open, but only those
matching the width of the label.
“Helper” holes should be left
un ‐ blocked, and all remaining
holes should be blocked.
Labels are feeding into the edge
of the tamp pad.
Tamp pad position too low Set tamp pad to a distance just
below the peel blade. See Tamp
Cylinder Adjustments on
page 19
.
Cylinder home sensor position
too low
Move the cylinder home sensor
to a position where the cylinder
is detected home later.
Air cushion set too slow The air cushion slows cylinder
travel at the return position. Too
much cushion cause reduce
speed at the home position. Set
cushion at optimal position
between slow return and end of
travel contact (see
page 20
).
Air Pressure Out Error Air pressure below minimum
allowable value
Check incoming pressure value
at pressure sensor. If the
minimum pressure must be
adjusted, see
page 51
, on
changing the setpoint minimum.
CFM dropping during
application, triggering air
pressure out signal
Clear the pressure sensor’s
minimum psi detection value by
following the instructions on
page 51
. Run the unit and
watch the bargraph for large
drops. Once the air pressure out
error occurs again, check the
minimum pressure detected
from the instructions on
page 51
.
Problem Cause Correction