Section 5
LABELING UNIT
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15
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English
F
412
0501
00.fm
ID
M
version:
Module 40/60/90/120
SPEED ADJUSTMENT
The rate of delivery of the labels is synchronized with
the speed of the object being labeled by means of an
encoder (speed sensor).
The two speeds are proportional to each other; by
speed adjustment, we mean an adjustment of the ratio
between the two. If the speed of the label is too slow
with respect to the speed of the object being labeled,
the label will tend to be dragged along by the object,
pulling the paper away from the reel; conversely, if the
speed of the label is too fast for the speed of the object,
the label will tend to wrinkle during its application.
To adjust the speed, it is essential to press and hold
the button for more than 2 seconds, until the green light
begins to flash. If you release the button after the first
flash, the speed will be adjusted to a value of 1; after
the second flash, the speed will be adjusted to a value
of 2, and so on. The limit value for this adjustment is
20. The adjustment is saved by the machine and
stored in non-volatile memory even if the machine is
switched off.
AUTOMATIC ADJUSTMENT OF THE LABEL-READING PHOTOCELL’S
SENSITIVITY
In some versions of the MODULE 40, a program is
installed that enables the sensitivity of the photocell
reading the labels to be adjusted automatically. This
software only works with the standard PackLab
photocell (for machines without this option, you should
refer to the section “Manual adjustment of the label-
reading photocell’s sensitivity” later on in the chapter
entitled OPERATING INSTRUCTIONS).
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. The automatic adjustment takes effect on the
intensity of light emitted, identifying how much light is
received through the backing paper.
To enable the automatic adjustment procedure,
proceed as follows:
– switch off the machine from the main circuit-breaker;
– place a piece of backing paper in the groove where
the photocell takes its reading;
– press and hold the machine control button, then
power up the machine from the main circuit-breaker;
– when the green light comes on, release the button.
You will see the green light flash for a few instants;
– the green light shows when it has found an efficient
regulation because it stops flashing and remains on
for approximately one second.
Now the machine is ready for operation as usual. The
value of the adjustment remains in the machine’s
memory until a new adjustment procedure is
performed.
