EN

SCATEC-2
Laser Copy Counter
FLDK 110G1003/S14
FLDK 110G1003/S42
FLDK 110C1003/S42
FLDK 110G1005/S14
FLDK 110G1005/S42
FLDK 110G1006/S14
FLDK 110x10/xxxxxx
User manual
General notes
Rules for proper
usage
This product represents a precision measuring device which has been
designed for the detection of objects and parts. It generates and provides
measured values issued as electrical signals for following systems.
Unless this product has not been specifically marked it may not be used in
hazardous areas.
Set-up
Installation, mounting and adjustment of this product may only be executed
by skilled employees.
Installation
Only mounting devices and accessories specifically provided for this product
may be used for installation.
Unused outputs may not be connected. Unused strands of hard-wired
sensors must be isolated. Do not exceed the maximum permissible bending
radius of the cable. Before connecting the product electrically the system
must be powered down.
Where screened cables are mandatory, they have to be used in order to
assure EMI protection. When assembling connectors and screened cables
at customer site the screen of the cable must be linked to the connector
housing via a large contact area.
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0
Table of Contents
FLDK 110x10/xxxxxx
Check section 14 for data
and information varying
from the standard manual !
1.
Safety information and Certifications
2.
Introduction
3.
Principle of operation
4.
Part identification
5.
Terms and definitions
6.
Signal sequence
7.
Installation
8.
Adjustments
9.
Instructions for use
10. Specifications
11. Accessories
12. Maintenance
13. Troubleshooting
14. Varying data for customized FLDK 110x10/xxxxxx
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Safety information and Certifications
The laser diode installed in the SCATEC-2 emits visible red light.
This laser belongs to the Class 2 laser standard specified by the
IEC 60825-1 / 2007.
Avoid looking directly into the beam for long periods. Brief
irradiation of the eye (0.25 sec) that can occur during an
accidental glance is not regarded to be dangerous.
However, the laser should not be aimed deliberately at people. The
laser beam should also be blocked at the end of its intended path.
Scatec-2 complies with the following safety standards:
Complies with 21CFR 1040.10 and 1040.11 except for deviations
pursuant to laser notice No.50, dated June 24, 2007
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2
Introduction
SCATEC-2 has the same key feature as all the other sensors from the SCATEC family: The capability
of non-contact detection of object edges. SCATEC is the sensor of choice when it comes to detect flat
objects conveyed in an overlapping stream or individually. The sensors in the SCATEC family were
developed and highly optimized particularly with regard to the specific demands of non-contact counting
of overlapping paper sheets and newspapers. Therefore the printing industry will be the ideal area of
application for the SCATEC.
Generally speaking a SCATEC sensor reacts to an edge facing the sensor’s laser beam. If the laser
beam strikes such an edge, SCATEC responds with an electrical output pulse of fixed duration.
However, built-in software allows the sensor among other things to suppress the reaction to certain
edges which were identified by the sensor as “false edges”. Therefore, SCATEC-2 makes it possible to
count newspapers to the highest degree of accuracy even at high conveyor speed.
Within the SCATEC family, the SCATEC-2 is characterized by the following properties:
(For details see specifications of the individual Scatec-2 types.)
•
•
•
•
•
•
counts edges from a thickness of 0.2 mm and greater
optimum working distance: 40 mm or 100 mm
intelligent false pulse suppression
parameter setting by means of DIP-switches
counting rate up to 600,000 copies per hour
with interface for remote control and data analysis
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Principle of operation
Described simply, the SCATEC-2 consists of a laser light source and two photodetectors. The beam is
aimed diagonally at the objects to be detected. Photodetector R is located close to the laser light source
and photodetector V a little further away. The sensor measures the ratio between signal v (light
scattered forward) and signal r (light scattered backward).
The ratio v/r differs widely depending whether the beam strikes on a flat surface or on an edge. When
an edge moves into the laser beam, the direct line of sight from detector V to the point of contact of the
laser is obstructed, which reduces signal v, and the edge
also increases the backward scattering, causing signal r to
increase. Both effects cause ratio v/r to become
substantially smaller than with a flat surface. If ratio v/r falls
below a specific level, the sensor interprets this as an edge.
This principle of operation clearly demonstrates that:
•
•
Manual SCATEC-2
Version 2011-05
The orientation of the object to the beam is significant.
An edge facing towards the beam creates a small ratio
v/r, in contrast to an edge facing away from the beam.
Edge detection is independent of the color, as only the
ratio of the light intensities and not the absolute value
is used for detection.
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Part identification
Edge-LED (yellow)
DIP-switch cover
with screw
Power-LED (green)
Alignment aid
Front window
Sensor plug
DIP-switches
Lower edge of sensor
O-ring
Connector : .../S42
DIP-switches
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Version 2011-05
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.../S14
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Terms and definitions
For reference, the terms defined in this section are used throughout the manual.
Running
direction
h
Front edge
d
k
a
Beam blocker
Tail edge
Conveying plane
Mounting height: h
Distance between the lower edge of the sensor and the conveying
plane.
Working plane
The edge lies on the working plane. With thick overlapping copies, the
working plane is slightly higher than the top of the conveying plane on
which the copies are transported. Distance d is measured vertically to
the lower edge of the sensor.
Working distance: d
Distance between the lower edge of the sensor and the working plane.
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Overlap: a
Distance between two successive edges, measured along the
conveying plane. (Also referred to as the object spacing.)
Edge thickness: k
Thickness of the copy at the point where the edge is to be detected.
Front edge
The edge of an object facing the laser beam. Front edges are detected
by the sensor.
Tail edge
The edge of an object facing away from the laser beam. Tail edges are
not detected by the sensor unless they are pointing upwards.
Running direction
The preferred running direction (front edges leading) is indicated. The
opposite direction is also permitted by the SCATEC-2.
Dead time t
The sensor responds to an edge with an output pulse with length p.
The dead time begins when the
pulse is issued. The sensor can
t
only issue the next pulse after
p
both the dead time t and the
output pulse p have expired. This
means: an edge detected by the
beam while still either the dead
time t or the the output pulse p is
on does not initiate an output
Output pulse
Dead time
pulse.
False pulse
Output pulse generated by an edge which should not be counted.
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Signal sequence
The yellow edge indicator LED lights as long as an edge is located in the beam. The output pulse is
issued at the end of the edge. The dead time begins when the output pulse is issued. During the dead
time and when issuing the pulse, the SCATEC-2 is inactive, i.e. an edge ending during the dead time or
the pulse issue of the previous edge will not initiate an output pulse. Therefore, the next output pulse
can only be issued after the dead time has expired and the output pulse has been issued.
Running direction
on
yellow edge-LED
off
high
output pulse (pulse length: p)
p
low
on
off
dead time (period: t )
t
time
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7.1
Installation
Electrical connection
Make the electrical connections as specified in Sections 10.2 Electrical data and 10.3 Pin assignement.
7.2
Mounting
(1)
Mount the sensor at the nominal working
distance h (+/-3 mm) with the front
window parallel to the conveying plane.
(2)
Adjust the sensor so that the laser beam
is aimed towards the edges to be
counted. When mounted correctly, the
overlap of the copies is facing in the
same direction as indicated in the
alignment aid. Note: the laser beam is
focused into a line which must be aligned
in parallel to the edge to be detected!
(3)
Block the laser beam after the objects
whenever possible.
(4)
Keep the window clean (remove any
fingerprints after mounting!).
(5)
A direct line of sight from the laser impact
point to the entire front window must be
ensured.
Manual SCATEC-2
Version 2011-05
Nominal working distance h
2
+/- 3°
1
4
5
1
2
Clean window
3
Beam blocker
Line focus perpendicular to
the Scatec housing
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FLDK 110x1003/Sxx
40 mm above the conveyor belt
FLDK 110x1005/Sxx
100 mm above the conveyor belt
FLDK 110x1006/Sxx
The resolution is dependent on the distance. The highest resolution is
achieved at the nominal working distance. (See also Section 10.6
Specific application data)
Angular tolerance
max. +/- 3°
Overlap orientation
The copies are counted when the edge facing the laser beam moves
through the beam. If an edge faces away from the beam, it is not
detected. Tail edges are therefore not counted unless they face upwards.
Running direction
The SCATEC-2 permits both running directions. The edges facing the
laser beam (front edges) are detected by the sensor regardless of the
running direction.
Front window
The direct line of sight from the impact
point of the laser to the entire front window
must not be obstructed by any hardware in
a distance range
d = 0 – 80 mm FLDK 110x1003/Sxx
d = 0 – 120 mm FLDK 110x1005/Sxx
FLDK 110x1006/Sxx
If mountings or other components are close
to this zone for any reason, you should
consult a technician from Baumer Electric
AG.
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7.3
Beam blocker
Uncontrolled reflections of the laser beam can cause malfunctioning of the sensor or disturb people.
Therefore, a beam blocker should be fitted whenever possible to block the beam when there is no target
present. A flat surface (at least approx. 25x25 mm) made of a matte, non-reflecting material is
recommended as the beam blocker. The beam blocker must be mounted parallel to the sensor. The
yellow edge indicator LED must not light when the laser beam strikes the beam blocker.
7.4
Cleaning the front window
Fingerprints, dust and other forms of dirt on the front window can impair the function of the sensor.
There is a high risk of accidentially leaving fingerprints on the windows when mounting the sensor.
Make sure that after the mounting the front windows are cleaned! It is normally sufficient to wipe the
glass pane dry with a clean (!), soft cloth. Alcohol may be used for heavier soiling.
7.5
Checklist for correct mounting
When the SCATEC-2 is mounted correctly:
•
•
•
•
•
•
•
the green power LED lights as long as the electrical supply is connected
the product overlap faces in the same direction as indicated on the sensor label
the laser beam is focused on the conveying plane into a line about 2 (3) mm long
the laser line focus must be aligned in parallel to the edges to be detected
the yellow edge indicator LED does not light when the laser beam strikes the beam blocker
the yellow edge indicator LED lights as long as an edge is located in the beam
the front windows are clean
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Adjustments
With the SCATEC-2, the following parameters and operating modes can be adjusted:
•
Output pulse length
•
False pulse suppression
•
Sensitivity
The parameters can be adjusted in two ways: via the interface or using DIP switches.
Parameter setting through the interface allows continuous choice of the parameters, whereas a
selection is made from a defined set when the parameters are set with the DIP switches. Parameter
setting through the interface using a computer is described in the user manual for the software package
ScaDiag.
Note:
•
The sensor is only in DIP switch mode when the power LED lights green.
If the power LED lights yellow instead of green, the parameters of the sensor have been set
through the interface. In this case, the DIP switches are inactive on the sensor and their settings
are irrelevant. The sensor can be reset to DIP switch mode, in which the parameters are defined
by the DIP switches, in two ways.
a) Through the interface (see user manual for the software package ScaDiag).
b) By setting the DIP switches in the following sequence:
1.
2.
3.
4.
•
Set all switches to OFF (at least one must have been ON previously)
Set all switches to ON within 16 seconds
Set all switches back to OFF within 16 seconds
The power LED should then light green after a brief delay. The parameters of the
sensor can then be adjusted with the DIP switches
To prevent the loss of the DIP switch cover screw, do not fully remove it from the cover. The screw
is retained by the cover.
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DIP-switch settings:
The effects of the various DIP-switch settings are
described in Section 9 Instructions for use below
o
Do remount the cover after having set the
DIP-switch to avoid intrusion of dust
Factory setting
FLDK 110x1003/Sxx
FLDK 110x1005/Sxx
Parameter
DIPswitch
Output pulse
length
1/2
False pulse
suppression
3
Sensitivity
4
FLDK 110x1006/Sxx
Setting
Value
off / off
off / on
on / off
on / on
off
on
on
off
5 ms
10 ms
15 ms
20 ms
inactive
Active
reduced
maximum
Parameter
Running
direction
Output pulse
length
False pulse
suppression
Sensitivity
DIPswitch
1
2
3
4
Setting
off
on
off
on
off
on
on
off
Value
leading
trailing
5 ms
10 ms
inactive
active
reduced
maximum
Factory settings
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9.1
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Instructions for use
Output pulse length and maximum counting rate
On the one hand, the duration of an output pulse must be long enough so that the customer’s control
system can process it. On the other hand, the length of the output pulse limits the maximum counting
rate. Because output pulses must not overlap, the interval between edges must be at least as long as
one output pulse length. If the interval is shorter, then this edge will be suppressed meaning that the
edge will not initiate an output pulse.
The following figure illustrates how every other edge is suppressed because of a too long of an output
pulse length.
Scatec-2
a
a
on
amber edge-LED
off
high
output pulse
pulse length p < interval a
p
low
high
p
low
output pulse
pulse length p > interval a
some edges are suppressed!
time
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A helpful rule of thumb is:
Output pulse length p in milliseconds must be shorter than 1.2 million
divided by the production rate given in copies per hour
The theoretical maximum production rate where output pulses follow each other without any gap in
between is 3 times higher than the recommended value given by the rule of thumb. Exceeding the
recommended value of the production rate increases the risk of missing edges due to irregular intervals
between copies.
The following table lists the recommended maximum production rate for some values of the output
pulse length.
set
output pulse length
recommended maximum
production rate
[milliseconds]
1
2
5
10
15
20
[copies/hour]
1,200,000
600,000
240,000
120,000
80,000
60,000
If suddenly the Scatec starts to miss copies while the production rate is run up, the reason very often is
too short an output pulse length for the actual production rate in combination with fluctuations of the
interval between copies.
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False pulse suppression
It is generally recommended that the SCATEC-2 should be operated with the false pulse suppression
feature active. In this way, multiple pulses caused by thicker copies (newspapers, folded cardboard
boxes etc.) or by a small crease at the edge can be suppressed.
The false pulse suppression feature ensures that no further pulses can be issued when an output pulse
is active and during the dead time. Activating the false pulse suppression feature causes the sensor to
automatically initiate a dead time when each pulse is issued, whose duration is 18% of the average
overlap spacing. If an output pulse is followed by another in less than about 1/6 of the current average
overlap spacing time, this pulse is suppressed, as it lies within the dead time of the preceding pulse.
The average overlap spacing time is constantly recalculated automatically by the SCATEC-2. This
ensures that the dead time is adjusted if the conveying speed changes. In certain cases, one edge may
be suppressed if the conveying speed is very quickly accelerated, whereas one false impulse may not
be suppressed during very fast braking. However, gaps in the overlapping stream caused when
individual copies are removed or when the overlapping stream is briefly diverted have no effect. The
false pulse suppression feature has no effect on the maximum counting rate as the dead time is
shortened as the counting frequency rises and can even become shorter than the output pulse length.
This occurs when the average copy spacing time becomes less than 6 times of the output pulse length.
Ideally, the sensor would not issue further pulses after a valid output pulse for a specific length, as the
typical distance between two edges is often known regardless of the speed. Anything between these
would be false pulses. However, to allow the sensor to suppress pulses for a specific length and not for
a defined time, it must be synchronized to the conveying speed. This is possible with the Scatec-10 and
Scatec-15.
Always switch on false pulse suppression unless the overlap spacing is highly unregular.
Individual copies may be ignored during abrupt acceleration or if the overlap spacing suddenly
becomes smaller.
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The following diagram shows a comparison of the pulse sequences for active and inactive false pulse
suppression with an identical lap stream.
Running direction
on
yellow edge-LED
off
high
p
low
a
t
output pulse
(pulse period: p)
Scatec inactive
Scatec active
dead time
(duration: t = 18% of
the average overlap a)
high
output pulse
(pulse period: p)
low
Scatec inactive
Scatec active
dead time
(duration: t = 0)
time
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9.3
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Sensitivity
Because the Scatec cannot discern between a front edge (which the customer wishes to detect) and a
spot on the object similar to an edge (e.g. crests or creases in the paper, creases in a carton etc), the
sensitivity of the sensor should be adjusted to the edge thickness to be detected. This means that the
sensor should be set to a sensitivity at which it detects all leading edges without being sensitive enough
to react to edge-like spots on the object thinner than the actual edge thickness.
It is possible to choose between two different sensitivity levels with DIP switch 4.
A diagram of the sensitivity in relation to the working distance and transportation speed is shown in
Section 10.6.
9.4
Variation of the working distance
The thickness that an edge must have to be detected by the SCATEC-2 depends on the working
distance. The SCATEC-2 is most sensitive at the nominal working distance which is 40mm for the FLDK
110x1003/Sxx and 100mm for the FLDK 110x1005/Sxx and FLDK 110x1006/Sxx. The relationship
between the sensitivity and the working distance is contained in the specifications in Section 10.6.
the sensitivity of the sensor varies with the working distance
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9.5
Signal sequence
Every output pulse is preceeded by a flash of the yellow edge-LED, however, not every flash of the
yellow edge-LED is followed by an output pulse! The yellow edge-LED lights as long as an edge is
located in the beam. Whether this edge actually results in an output pulse or not depends on the current
settings. The pulse could still be suppressed due to restrictions imposed by the dead-time or pulse
length (see section 6).
Because the yellow edge-LED lights up exactly during the time an edge is in the laser beam, the
flashing of the yellow LED may become difficult to recognize by eye when fine edges pass the sensor at
high speed. Consequently, at high conveying speed and/or fine edges, supposedly absent flashing of
the yellow LED does not necessarily mean malfunction of the sensor.
9.6
not every flash of the yellow edge-LED is followed by an output pulse
at a high conveying speed the flashing of the yellow edge-LED may be difficult to recognize
Applications outside the paper processing industry
Due to the fundamental principle of edge detection employed by the SCATEC-2, the field of application
for the sensor is not restricted to the paper processing industry. For applications concerning high-gloss
surfaces (e.g. sheet metals), it is advisable to consult a technician from Baumer Electric AG on the
application.
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10 Specifications
10.1
Mechanical and thermal data
Sensor size
Housing material
Front window
Weight
Protection class
Working temperature range
Storage temperature
110 x 50 x 30 mm
plastic (PA6.6)
glass
approx. 130 g
IP 54
0°C to +50°C (non-condens ing)
-20°C to +60°C
13
LED
DIPswitches
Laser
beam
Sensor-Typ
FLDK .../S14
FLDK .../S42
A
M12x1
M16x0.75
B
8.5
11.8
Beam angle α
FLDK 110x1003/Sxx
FLDK 110G1005/Sxx
FLDK 110G1006/Sxx
65°
81°
81°
B
15
30
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50
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10.2
Electrical data
Operating voltage VS
Limits:
reverse-protected
+10 VDC to +30VDC (UL-Class 2)
yes
Ripple VS
10% within the limits of VS
Power consumption
<2W
Current consumption
Average:
Peak (after switching on)
< 170 mA
< 180 mA
Output connector
FLDK.../S14
FLDK.../S42
FLDK110x10/xxxxxx
M12 connector, 5-pole
DIN 45322, 6-pole
see section 14
Output circuit
FLDK 110G...
normal state
FLDK 110C...
switchable voltage
load resistance
current load:
short-circuit protected
Push-pull
low
Opto-isolated
maximum 40 V
maximum 50 kOhm
max. 100 mA
yes
Output pulse length
FLDK...1003/…and ...1005/…
FLDK...1006/…
5, 10, 15, 20 ms selected by DIP switch
5, 10 ms selected by DIP switch
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Pin assignment
FLDK.../S14
4
1
5
M12-connector, 5-pole
Pin
Assignment
1
2
3
4
5
Operating voltage +Vs
Seriell TxD (sensor)
GND (0V)
Signal output +Vout
Seriell RxD (sensor)
3
2
FLDK.../S42
1
5
6
DIN 45322, 6-pole
Pin
Assignment
1
2
Signal output +Vout
not connected
Signal output -Vout
Operating voltage +Vs
Seriell RxD (sensor)
Seriell TxD (sensor)
GND (0V)
3
4
5
6
(FLDK 110G...)
(FLDK 110C...)
4
2
3
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10.4
10.4.1
Output connection
Push-pull output (FLDK 110G...)
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Opto-isolated output (FLDK 110C...)
Output connected as
Current source
Sensor
Current sink
+Vout
Pin 3
+VS
Pin 1
+Vout Pin 1
+Vout
V
V
Load
polyfuse
Pin 2
-Vout
Pin 6
GND
Pin 1
Pin 2
Pin 2
Load
+VS
+Vout
-Vout
GND
R Load
I Load
Operating voltage (+10VDC ... +30VDC)
Signal output +
Signal output 0V
maximum 50 kOhm
maximum 100 mA
switchable voltage (+Vout minus -Vout) maximum 40 V
Manual SCATEC-2
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V2
Vout
V1
typ. Vout
min. Vout - 4V
typ. 0V
GND
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max. 4V
GND
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10.5
Optical data
Laser
Wavelength
Pulse frequency
Duty cycle
Average power
Laser class
Beam diameter
FLDK110x1003/Sxx
at emission point
40 mm beneath sensor
FLDK110x1005/Sxx
FLDK110x1006/Sxx
at emission point
100 mm beneath sensor
650nm - 680 nm (visible red)
50 kHz
50%
< 0.5 mW
2 (to IEC 60825-1 / 2007)
about 2.5 mm
Line focus, 2 mm long, perpendicular to the Scatec housing
about 2.5 x 4 mm
Line focus, 3 mm long, perpendicular to the Scatec housing
Focus position
FLDK110x1003/Sxx
FLDK110x1005/Sxx
FLDK110x1006/Sxx
Optical receiver
Manual SCATEC-2
Version 2011-05
10.6
40 mm beneath sensor
100 mm beneath sensor
equipped with NIR suppression filter and
daylight suppression filter
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Application data
Measuring range
FLDK110x1003/Sxx
FLDK110x1005/Sxx
FLDK110x1006/Sxx
0 to 60 mm beneath sensor
0 to 120 mm beneath sensor
Mounting height
FLDK110x1003/Sxx
FLDK110x1005/Sxx
FLDK110x1005/Sxx
40 mm above conveyor
100 mm above conveyor
Object speed
2 m/s maximum (5 m/s maximum for thicker edges)
Minimum object spacing
10 mm @ v = 1 m/s and output pulse length 10 ms, or
proportional to the speed and output pulse length
Counting rate
600,000 maximum copies/h
Product orientation
Fold facing laser beam
Output pulse length
5, 10, (15, 20) ms selected by DIP switch
Dead time
0 ms with inactive false pulse suppression, otherwise 18%
of the average product spacing time
Pulse issue time
FLDK110x1003/Sxx
FLDK110x1005/Sxx
FLDK110x1006/Sxx
Manual SCATEC-2
Version 2011-05
at the end of the edge
at the beginning of the edge
depending on the selected running direction
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Sensitivity
FLDK 110x1003/Sxx:
Edges from 0.20 mm thickness and greater are detected
FLDK 110x1005/Sxx and FLDK 110x1006/Sxx
Edges from 0.25 mm thickness and greater are detected
Sensitivity is dependant on distance and speed
Typical sensitivity characteristics see figure below
Scatec-2 FLDK 110x1003/Sxx
Edge thickness k [mm]
1.4
Sensitivity
typical sensitivity characteristics
reduced
sensitivity
1.2
v = 1 ... 2 m/s
1.0
0.8
m aximum
sensitivity
0.6
0.4
v = 2 m /s
v = 1 m /s
0.2
0.0
0
5
10
15
20
25
30
35
40
45
50
55
60
Working distance d [mm]
How to read the graphics:
An edge with thickness k (*) at distance d can be detected when in the
graphics k is above the curve at the corresponding distance d .
(*) Test object: cleanly cut white paper or cardboard
Manual SCATEC-2
Version 2011-05
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Baumer Electric AG
Frauenfeld, Switzerland
11 Accessories
Cable with plug
Article number
ESW 33AH0200
ESW 33AH0500
ESW 33AH1000
Cable length L
4-pin
4-pin
4-pin
Article number
ESG 34AH0200
ESG 34AH0500
ESG 34AH1000
Manual SCATEC-2
Version 2011-05
2m PUR/halogen-free
5m PUR/halogen-free
10m PUR/halogen-free
Cable length L
4-pin
4-pin
4-pin
2m PUR/halogen-free
5m PUR/halogen-free
10m PUR/halogen-free
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Baumer Electric AG
Frauenfeld, Switzerland
12 Maintenance
The SCATEC-2 requires no maintenance apart from keeping the front windows clean. Dust or
fingerprints can impair the sensor function. It is normally sufficient to wipe the windows dry with a clean
(!), soft cloth. Alcohol may be used for heavy soiling.
The cover of the DIP switch must be mounted, otherwise dust might intrude. Dust inside the housing
can cause the sensor to malfunction.
13 Troubleshooting
Whenever possible use the application software ScaDiag for trouble shooting !
Otherwise first try to resolve the problem using the following tables. If this is unsuccessful, consult
Baumer Electric AG (www.baumerelectric.com) for technical support.
The search for fault causes can be substantially shortened if the following issues are clarified before you
make contact with a technician from Baumer Electric AG:
1.
2.
3.
4.
What is the part number and P-code of the sensor (see white area on the sensor label)?
Give exact description of the problem. (Does the SCATEC count more or less copies
than actually pass the sensor?)
Retain several samples of the products causing the counting error. (Mark the running
direction on one sample and the approximate line along which it passes the laser beam.)
If possible, take digital images of the installed sensor in operation and of the immediate
surroundings.
Manual SCATEC-2
Version 2011-05
Fault
1
Scatec counts less
copies than actually
pass the sensor
Manual SCATEC-2
Version 2011-05
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Baumer Electric AG
Frauenfeld, Switzerland
Possible causes
Corrective actions (see manual section x.x)
a) Wrong sensitivity setting.
Set DIP-swich 4 off. (8; 9.3)
b) Copies too close to or too far away
from the Scatec, so that the copies
are in a distance range at which the
sensitivity of the sensor is inadequate.
Set the distance of the copies in a range where
the sensor is sufficiently sensitive to detect the
copies. (10.6)
c) Overlap spacing sporadically too
small.
Increase the overlap spacing or reduce the
conveying speed (production rate). (9.1)
d) Some copies are completely
covered by another copy.
Prevent complete coverage of copies.
e) Conveying speed too high.
Reduce conveying speed. (10.6)
f) False pulse suppression active
while overlap a is highly irregular or
conveying speed is occasionally
accelerated very quickly.
Deactivate false pulse suppression (DIP-switch 3
set off) or make overlap a more regular or
accelaerate slower (9.2)
32
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Baumer Electric AG
Frauenfeld, Switzerland
Fault
2
Scatec counts more
copies than actually
pass the sensor
Manual SCATEC-2
Version 2011-05
Possible causes
Corrective actions (see manual section x.x)
a) Apart from the edges, there are
other patches on the copies which
cause false pulses.
Prevent critical patches on the copies.
b) Laser beam on beam blocker
causes false pulses.
Adjust beam blocker correctly (yellow edge LED
must never light when the laser beam strikes the
beam blocker).
c) Unblocked laser beam is reflected
and causes false pulses.
Install beam blocker at proper distance.
d) Conveyor belt stands still and
vibrates while an edge is still in the
laser beam.
This problem can be eliminated only by
synchronizing the sensor to the conveyor speed.
Scatec-10 and –15 can be synchronized.
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14 Varying data for customized FLDK 110x10/xxxxxx
Manual SCATEC-2
Version 2011-05
34
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Baumer Electric AG
Frauenfeld, Switzerland
Manual SCATEC-2
Version 2011-05
Denmark
Baumer A/S
DK-8210 Aarhus V
Phone +45 (0)450 392 466
Italy
Baumer Italia S.r.l.
IT-20090 Assago, MI
Phone +39 (0)245 70 60 65
United Kingdom
Baumer Ltd.
GB-Watchfield, Swindon, SN6 8TZ
Phone +44 (0)1793 783 839
China
Baumer (China) Co., Ltd.
CN-201612 Shanghai
Phone +86 (0)21 6768 7095
Austria
Baumer GmbH
AT-2514 Traiskirchen
Phone 0800 0700020
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Baumer Electric AG
Frauenfeld, Switzerland
France
Baumer SAS
FR-74250 Fillinges
Phone +33 (0)450 392 466
Sweden
Baumer A/S
SE-56122 Huskvarna
Phone +46 (0)36 13 94 30
Canada
Baumer Inc.
CA-Burlington, ON L7M 4B9
Phone +1 (1)905 335-8444
India
Baumer India Private Limited
IN-411038 Pune
Phone +91 20 2528 6833/34
Brasil
Baumer do Brasil Ltda
BR-04726-001 São Paulo-Capital
Phone +55 11 56410204
Germany
Baumer GmbH
DE-61169 Friedberg
Phone +49 (0)6031 60 07 0
Switzerland
Baumer Electric AG
CH-8501 Frauenfeld
Phone +41 (0)52 728 1122
USA
Baumer Ltd.
US-Southington , CT 06489
Phone +1 (1)860 621-2121
Singapore
Baumer (Singapore) Pte. Ltd.
SG-339412 Singapore
Phone +65 6396 4131
www.baumer.com/worldwide
Technical data subject to change
Manual SCATEC-2
Version 2011-05
Printed in Switzerland
36
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No. 10153594
Baumer Electric AG
Frauenfeld, Switzerland