Section 5
LABELING UNIT
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English
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version:
Module 40/60/90/120
MANUAL ADJUSTMENT OF THE LABEL-READING PHOTOCELL’S SENSITIVITY
On machines that do not have the
automatic regulating option, the
photocell’s sensitivity can be adjusted
by means of a screw trimmer situated
on the PL006 card inside the
switchboard. This adjustment can only
be made by opening the electric
switchboard while the power is on, so it
must only be undertaken by an expert
electrician.
The PL006 card is normally installed
parallel to the cover on the right-hand
side of the switchboard and the trimmer
is situated at the top end of the card
and marked with the code P1. If the
screw on the trimmer P1 is turned
clockwise, it increases the intensity of
light emitted by the photocell. There is
a green light on the PL006 card,
marked with the word “STOP”, that
comes on when the label-reading
photocell is in the light and goes off
when the photocell is in the dark. The
photocell’s sensitivity is adjusted so
that the light emitted by the photocell
succeeds in passing through the
translucent backing paper but not through the label. It
is consequently necessary to proceed as follows:
– – remove the cover from the switchboard;
– – locate the PL006 card and the STOP light and
trimmer P1 on board the card;
– – position some backing paper without any labels in
the groove where the photocell takes its reading;
– if the STOP light is off, turn the trimmer P1 clockwise
until the light comes on; if the light is on, turn the
trimmer anticlockwise until the light goes off, then
turn it clockwise again until it comes back on;
– then turn the trimmer clockwise through one turn;
– place a label in the groove where the photocell takes
its reading and make sure that the STOP light goes
off when the label transits under the photocell, and
that it only comes on for the passage of the gap
between two labels.
ADJUSTING FOR NARROW LABELS - MODULE 40E
If the machine is used to apply particularly narrow
labels (< 20 mm), it may be necessary to change the
driving motor’s acceleration ramp, making it faster than
normal. On machines configured in standard mode,
this is done simply by moving the dip switch “1” on the
PL006 card from the OFF position (where it is
normally) to the ON position. The dip switch must only
be moved after disconnecting the power to the
switchboard.
Danger - Warning
Never move the dip switches 2, 3 and 4 from the
OFF position! Doing so could cause irreparable
damage to the electronic card.
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