Diagraph LA/4700, Руководство пользователя, Страница: 53 / 69

Diagraph - an ITW Company LA/4700 User Manual - Revision B
Troubleshooting Page 52
Tr
oubleshooting
TAMP SYSTEMS
Problem Cause Correction
Label is on the tamp pad, but
tamp cylinder does not fire
Product detector not triggered
by product
Verify in Diagnostics (
page 40
)
that the product detector can
repeatedly detect the product.
Adjust sensor as necessary
Apply trigger occurred before
label was on tamp pad
Increase distance of product
detector from tamp pad to allow
feeding to complete
Tamp pad is contacting product
with too much force or for too
long a duration
Auto ‐ Retract delay time is too
long
Decrease the Auto ‐ Retract delay
time to start the cylinder return
sooner.
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
Open pad and check. 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.
Multiple labels are fed to the
tamp pad.
Vacuum setting too low Increase vacuum generator
pressure to 30 PSI or greater
Clogged tamp pad orifices
Vacuum Filter dirty
Clean tamp pads with isopropyl
alcohol and compressed air.
Clean or replace vacuum filter.
Uncovered vacuum orifices
when label is on pad
Align tamp pad position to
match open vacuum orifices
Dispense position incorrect.
Next label over ‐ extending
during end of feeding. Next
label dislodges label on pad.
Decrease dispense position
Dispense position incorrect.
Label not extending out of drive
module far enough to seat on
tamp pad.
Increase dispense position
Label liner is incorrectly
threaded
Check liner path is between the
gap sensor prongs and web
guides are positioned correctly.