Diagraph LA/4700, Руководство пользователя, Страница: 51 / 69

Diagraph - an ITW Company LA/4700 User Manual - Revision B
Troubleshooting Page 50
Tr
oubleshooting
6.4 Problem - Solution Matrix
COMMON TO ALL SYSTEMS
(Check these first before proceeding to specific system type)
Problem Cause Correction
Multiple labels are fed, without
a pause between labels
Label gap sensor is not
calibrated
Perform the calibration
procedure for setting the label
gap sensor level. See
page 30
Label liner is not positioned
inside label gap sensor
Set the web guides so that the
liner passes through the label
gap sensor
Label is not within 3/8 of an
inch of the liner edge
Change material which has the
label’s edge to the liner’s edge
less than 3/8 of an inch.
Drive roller is turning
backwards, liner is pulled from
rewind
Unit is incorrectly webbed Re ‐ web the label liner as seen
on
page 24
Unit is not correctly configured
for left ‐ hand or right ‐ hand
Confirm that the unit
configuration is correct.
(
page 35
)
Supply roll is signalling label
low too soon
Label Low Sensor position
incorrect
Unscrew the Label Low sensor
and move it to a position farther
away from the unwind supply
roll core and screw into
position.
Label Low Sensor malfunction Check sensor functionality in
diagnostics and replace if
necessary.
Calibration of Label Gap results
in failure
Liner is too thick This material may not be
compatible with the unit’s
standard sensor
Sensor is dirty Clean sensor with isopropyl
alcohol once removed from peel
blade support
Sensor connection is faulty Check connector J6 on Motor
Controller Board 4700 ‐ 350
Sensor is damaged Replace sensor