Datalogic and the Datalogic logo are registered trademarks of Datalogic S.p.A. in many countries, including
the U.S.A. and the E.U. All other trademarks and brands are property of their respective owners.
Datalogic shall not be liable for technical or editorial errors or omissions contained herein, nor for incidental
or consequential damages resulting from the use of this material.
Page 3
Page 4
CE COMPLIANCE
CE marking states the compliance of the product with essential requirements listed in the applicable
European directive. Since the directives and applicable standards are subject to continuous updates, and
since Datalogic promptly adopts these updates, therefore the EU declaration of conformity is a living
document. The EU declaration of conformity is available for competent authorities and customers through
Datalogic commercial reference contacts. Since April 20th, 2016 the main European directives applicable to
Datalogic products require inclusion of an adequate analysis and assessment of the risk(s). This evaluation
was carried out in relation to the applicable points of the standards listed in the Declaration of Conformity.
Datalogic products are mainly designed for integration purposes into more complex systems. For this reason
it is under the responsibility of the system integrator to do a new risk assessment regarding the final
installation.
Warning
This is a Class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
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1 GENERAL INFORMATION ........................................................................................................ 8
1.1 General description ..................................................................................................................... 8
7.2 Test ........................................................................................................................................... 39
The microprocessor guarantees the check and the management of the beams that are sent and received through
the units: the microprocessor – through some LEDs – informs the operator about the general conditions of the
safety light curtain, both for settings and for diagnostics (see cfr.USER INTERFACE AND DIAGNOSTICS page
54).
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NORM
DESCRIPTION
EN 61496-1: 2013
Safety of machinery: electrosensitive protective equipment.
Part 1: General prescriptions and tests.
EN 61496-2: 2013
Safety of machinery: electrosensitive protective equipment - Particular requirements
for equipment using active optoelectronic protective devices.
EN ISO 13849-1: 2015
Safety of machinery. Safety-related parts of control systems.
Part 1: General principles for design
EN 61508-1: 2010
Functional safety of electrical/electronic/programmable electronic safety-related
systems.
Part 1: General requirements
EN 61508-2: 2010
Functional safety of electrical/electronic/programmable electronic safety-related
systems.
Part 2: Requirements for electrical/electronic/programmable electronic safetyrelated systems
EN 61508-3: 2010
Functional safety of electrical/electronic/programmable electronic safety-related
systems.
Part 3: Software requirements
EN 61508-4: 2010
Functional safety of electrical/electronic/programmable electronic safety-related
systems.
Part 4: Definitions and abbreviations
EN 62061:2005/A2: 2015
Safety of machinery. Functional safety of electrical/ electronic/programmable
electronic safety-related control systems.
1 GENERAL INFORMATION
1.1 GENERAL DESCRIPTION
The safety light curtains are optoelectronic multibeam devices that are used to protect working areas that, in
presence of machines, robots, and automatic systems in general, can become dangerous for operators that can
get in touch, even accidentally, with moving parts.
The light curtains are intrinsic safety systems used as accident-prevention protection devices and are
manufactured in accordance with the international Standards in force for safety, in particular:
The device, consisting of one emitter and one receiver contained inside aluminium profiles, generates infrared
beams that detect any opaque object positioned within the light curtain detection field.
The emitter and the receiver are equipped with the command and control functions.
The connections are made through one or more connectors as specified in cfr.ELECTRICAL CONNECTIONS
page 28.
The synchronisation between the emitter and the receiver takes place optically, i.e. no electrical connection
between the two units is required.
The microprocessor guarantees the check and the management of the beams that are sent and received through
the units: the microprocessor – through some LEDs – informs the operator about the general conditions of the
safety light curtain (cfr.USER INTERFACE AND DIAGNOSTICS page 54).
The receiver is the main controller for all functions. It monitors all safety actions in case of failure and performs
general functions as well.
During installation, an user interface facilitates the alignment of both units (cfr.ALIGNMENT PROCEDURE page
32).
As soon as an object, or a limb or the operator’s body accidentally interrupts one or some of the infrared beams
sent by the emitter, the receiver immediately opens the OSSD outputs or trigger Safety State over connected
safety Fieldbus.
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Notes and detailed descriptions about particular characteristics of the safety devices in
order to better explain their functioning. Special instructions regarding the installation
process.
Some parts or sections of this manual containing important information for the user or installing operator are
preceded by a note:
This manual contains all the information necessary for the selection and operation of the safety devices.
However, specialised knowledge not included in this technical description is required for the planning and
implementation of a safety light curtain on a power-driven machine.
As the required knowledge may not be completely included in this manual, we suggest the customer to contact
Datalogic Technical Service for any necessary information relative to the functioning of the light curtains and the
safety rules that regulate the correct installation (cfr. USER INTERFACE AND DIAGNOSTICS page 54).
1.2 PACKAGE CONTENTS
Package contains the following objects:
Receiver (RX)
Emitter (TX)
Quick Guide of safety light curtain
Periodical checklist and maintenance schedule
Mini-DVD with instruction manual and other documents
4 angled fixing brackets and specific fasteners
2 additional angled fixing brackets for models with heights included between 1200 and 1800 mm
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1.3 NEW FEATURES COMPARED TO SG2 BASE / SG2 EXTENDED
With respect to SG2 BASE / SG2 EXTENDED series, safety light curtains of SG2 MUTING series have some new
important features:
Higher operating distance
New profile compatible with SE accessories
Advanced alignment function for receiver and transmitter units
Muting function
Partial muting
Override
Override status
Reduction Range
Null dead zone (the controlled height of the light curtain is equivalent to the light curtain’s height)
Basic configuration with push-buttons (BCM)
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R=30 mm
Hand protection
Fig 2 - Detection capability
1.4 HOW TO CHOOSE THE DEVICE
There are at least three different main characteristics that should be considered when choosing a safety light
curtain, after having evaluated the risk assessment.
1.4.1 Detection capability
The detection capability (or resolution) of the device is the minimum diameter that an opaque object must have in
order to obscure at least one of the beams that constitute the detection zone and to actuate the sensing device.
The resolution is related to the part of the body to be protected.
As shown in Fig 2 - page 11, the resolution only depends on the geometrical characteristics of the lenses,
diameter and distance between centres, and is independent of any environmental and operating conditions of the
safety light curtain.
The resolution value is obtained applying the following formula:
where:
I=Interaxes between two adjacent optics
d=Lens diameter
R = I + d
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Fig 3 - Detection Zone
MODEL
Controlled height Hp
(mm)
SG2-30-030-OO-W
300
SG2-30-045-OO-W
450
SG2-30-060-OO-W
600
SG2-30-075-OO-W
750
SG2-30-090-OO-W
900
SG2-30-105-OO-W
1050
SG2-30-120-OO-W
1200
SG2-30-135-OO-W
1350
SG2-30-150-OO-W
1500
SG2-30-165-OO-W
1650
SG2-30-180-OO-W
1800
1.4.2 Height of the detection zone
The controlled height is the height protected by the safety light curtain.
K = Speed of the object, limb or body approaching the dangerous area in mm/sec
t1
=
Response time of the ESPE in seconds (see cfr.TECHNICAL DATA page 60)
t2 = Machine stopping time in seconds (including the Safety Control System)
C = Additional distance based on the possibility to insert the body or one of body parts inside
the dangerous area before the protective device trips.
C=8 (R -14) for devices with resolution ≤ 40 mm
C=850 mm for devices with resolution > 40 mm
R = Resolution of the system
K value is:
2000 mm/s if the calculated value of S is ≤ 500 mm
1600 mm/s if the calculated value of S is > 500 mm
1.4.3 Minimum installation distance
The safety device must be positioned at a specific safety distance (Fig 4 - page 13).
This distance must ensure that the dangerous area cannot be reached before the dangerous motion of the
machine has been stopped by the Safety Control System.
The safety distance depends on 4 factors, according to the EN ISO 13855 Standard:
Response time of the ESPE (the time between the effective beam interruption and the opening of the OSSD
contacts)
Machine stopping time including Safety Control System computing and actuating time if present.
ESPE resolution
Approaching speed of the object to be detected
The following formula is used for the calculation of the safety distance:
S = K (t1 + t2) + C
where:
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S =
Minimum safety distance in mm.
t1
=
Response time of the ESPE in seconds (cfr. TECHNICAL DATA page 60)
t2 = Machine stopping time in seconds (including the Safety Control System)
H = Beam height from ground; this height must always be less than 1,000 mm.
t2 = Machine total stopping time (Including safety control system).
T = (t1 + t2) Overall system stopping performance
C = 8 * (R – 14) for devices with resolution <= 40 mm
R = Resolution of the system
The reference standard is EN ISO 13855 “Safety of machinery - Positioning of
safeguards with respect to the approach speeds of parts of the human body”.
The following information is to be considered as indicative and concise.
For correct safety distance please refer to complete standard EN ISO 13855.
When devices with > 40 mm resolution are used, the height of the top beam has to be ≥ 900 mm (H2) from
machine supporting base while the height of the bottom beam has to be ≤ 300 mm (H1).
If the safety light curtain must be mounted in a horizontal position (Fig 5 - page 14) the distance between the
dangerous area and the most distant optical beam must be equal to the value calculated using the following
formula:
S = 1600 mm/s (t1 + t2) + 1200 - 0,4 H
where:
Practical examples
Let's suppose to have a light curtain with height = 600 mm
To calculate the distance of the device from the ESPE, in a vertical position, the following formula is used:
S = K*T + C
where:
In all cases, if K = 2000mm/sec then S > 500 mm.
Distance will have then to be recalculated using K = 1600 mm/sec.
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Fig 6 - Automatic packaging machines
Fig 7 - Presses and punching machines
Fig 8 - Benders and cutters
1.5 TYPICAL APPLICATIONS
The SG2 MUTING safety light curtains are used in all automation fields where the control and protection of access
to dangerous zones is necessary.
In particular they are used to stop the moving mechanical parts of:
Automatic machines
Packaging machines, handling machines, storing machines
Wood working machines, glass working machines, ceramics working machines, etc.
Automatic and semi–automatic assembly lines
Automatic warehouses
Presses, punching machines, benders and cutters
In food industry applications, DATALOGIC Technical Service has to verify the compatibility of the material of the
safety light curtain housing with any chemical agents used in the production process.
The following pictures show some main applications.
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For a correct and safe use of the safety light curtains, the following points must be
observed:
Please carefully read the instructions for the correct functioning before powering the
light curtain on.
1.6 SAFETY INFORMATION
The stopping system of the machine must be electrically controlled.
This control system must be able to stop the dangerous movement of the machine within the total machine
stopping time T as per paragraph Minimum installation distance page 13 and during all working cycle
phases.
Mounting and connection of the safety light curtain must be carried out by qualified personnel only, according
to the indications included in the special sections (refer to sections INSTALLATION page 17, MECHANICAL MOUNTING page 26, ELECTRICAL CONNECTIONS page 28, ALIGNMENT PROCEDURE page 32) and in
the applicable standards.
The safety light curtain must be securely placed in a particular position so that access to the dangerous zone is
not possible without the interruption of the beams (refer section INSTALLATION page 17).
The personnel operating in the dangerous area must be well trained and must have adequate knowledge of all
the operating procedures of the safety light curtain.
The TEST button must be located outside the protected area because the operator must check the protected
area during all Test operation.
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Make sure that the protection level assured by the light curtain device is compatible
with the real danger level of the machine to be controlled, according to EN ISO 13849-1:
2015 or EN 62061:2005/A2: 2015.
2 INSTALLATION
2.1 PRECAUTIONS TO BE OBSERVED FOR THE CHOICE AND INSTALLATION
Use only matched emitter and receiver pairs with same serial no.
The outputs (OSSD) of the ESPE must be used as machine stopping devices and not as command devices.
The machine must have its own START command.
The dimension of the smallest object to be detected must be larger than the resolution level of the device.
The ESPE must be installed in an environment complying with the characteristics indicated in TECHNICAL
DATA page 60.
The ESPE must not be installed close to strong and/or flashing light sources, in particular close to the front
window of receiving unit.
The presence of intense electromagnetic disturbances could affect device’s correct operation.
This condition shall be carefully assessed with the advice of DATALOGIC Technical Service.
The operating distance of the device can be reduced in presence of smog, fog or airborne dust.
A sudden change in environment temperature, with very low minimum peaks, can generate a small
condensation layer on the lenses and thus jeopardize correct operation.
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Fig 9 - Wrong light curtain positioning
Fig 10 - Correct light curtain positioning
Fig 11 - Wrong light curtain positioning
Fig 12 - Correct light curtain positioning
Fig 9 - page 18 shows some examples of possible access to the machine from the top
and the bottom sides. These situations may be very dangerous and so the installation
of the safety light curtain at sufficient height in order to completely cover the access to
the dangerous area (Fig 10 - page 18) becomes necessary.
If the operator is able to enter in the dangerous area, an additional mechanical
protection must be mounted to prevent the access.
2.2 GENERAL INFORMATION ON DEVICE POSITIONING
The safety light curtain should be carefully positioned in order to provide the necessary protection. Access to the
dangerous area must only be possible by passing through the protecting safety light beams.
Under standard operating conditions, machine starting must not be possible while operators are inside the
dangerous area.
Where it is not possible to install safety light curtain very near to the dangerous zone, a second light curtain must
be mounted in a horizontal position in order to prevent any lateral access, as shown in Fig 12 - page 18.
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Fig 13 - Distance from reflecting surfaces
2.2.1 Minimum distance from reflecting surfaces
Reflecting surfaces placed near the light beams of the safety device (over, under or laterally) can cause passive
reflections. These reflections can affect the recognition of an object inside the controlled area. Moreover, if the RX
receiver detects a secondary beam (reflected by the side-reflecting surface) the object might not be detected, even
if the object interrupts the main beam.
It is important to position the safety light curtain according to the minimum distance from reflecting surfaces.
The minimum distance depends on:
operating distance between emitter (TX) and receiver (RX);
real aperture angle of ESPE (EAA); especially:
for ESPE Type 2 EAA = 10° (α = ± 5°)
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Fig 14 - Minimum distance from reflective surface
Diagram of Fig 14 - page 20 shows the minimum distance from the reflecting surface (Dsr), based on the
operating distance:
The formula to get Dsr is the following:
For ESPE Type 2:
Dsr (m) = 0.6 for operating distance < 3 m
Dsr (m) = operating distance (m) x tg 2a for operating distance >= 3 m
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Fig 15 - Distance between homologous devices
Fig 16 - ESPE Type2
Operating distance (m)
Minimum installation distance (m)
3
0,3 6 0,4
10
0,5
19
0,6
The interfering device (TXB) must be positioned at the same Ddo distance, calculated as
shown above, even if closer to TXA respect to RXA.
Installation precautions have to be taken to avoid interference between homologous
devices. A typical situation is represented by the installation areas of several adjacent
safety devices aligned one next to the other, for example in plants with different
machines.
2.2.2 Distance between homologous devices
The following graphic shows the distance from the interfering devices (Ddo) according to the operating distance
(Ddo) of the couple ( TXA – RXA ).
If different safety devices have to be installed in adjacent areas, the emitter of one device must not interfere
dangerously with the receiver of the other device.
The TXB interfering device must be positioned outside a minimum Ddo distance from the TXA – RXA emitterreceiver couple axis.
This minimum Ddo distance depends on:
the operating distance between emitter (TXA) and receiver (RXA)
the effective aperture angle of the ESPE (EAA)
The following graphic shows the distance from the interfering devices (Ddo) according to the operating distance
(Ddo) of the couple ( TXA – RXA ).
The following table shows, for convenience, the values of the minimum installation distances relative to some
operating distances:
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Fig 17 - Recommended positioning for homologous devices
If two light curtains have to be mounted near each other as reported in the first example
of Fig 17 - page 22.
The figure provides two examples:
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Fig 18 - Wrong light curtain TX-RX orientations
2.2.3 Emitter and Receiver Orientation
The two units shall be assembled parallel each other, with the beams arranged at right angles with the emission
and receiving surface, and with the connectors pointing to the same direction.
The configurations shown in the figure must be avoided:
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Fig 19 - Use of deviating mirrors
Number of mirrors
Operating Distance
0
20 m
1
16 m
2.2.4 Use of deviating mirrors
The control of any dangerous area, with several but adjacent access sides, is possible using only one safety device
and well-positioned deviating mirrors.
The figure shows a possible solution to control two different access sides, using one mirror placed at 45° with
respect to the beams.
The operator must respect the following precautions when using the deviating mirrors:
The alignment of the emitter and the receiver can be a very critical operation when deviating mirrors are used.
Even very small displacements of the mirror is enough to lose alignment.
The use of DATALOGIC laser pointer accessory is recommended under these conditions.
The minimum safety distance (S) must be respected for each single section of the beams.
The effective operating range decreases by about 20% by using only one deviating mirror.
The following table shows estimated operating distances relating to the number of mirrors used.
The presence of dust or dirt on the reflecting surface of the mirror causes a drastic reduction in the range.
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Fig 20 - Path of the test piece
2.2.5 Controls after first installation
The control operations to carry-out after the first installation and before machine start-up are listed hereinafter. The
controls must be carried-out by qualified personnel, either directly or under the strict supervision of the person in
charge of machinery Safety.
Verify that:
L'ESPE rimanga in stato di SICUREZZA, e intercetti i raggi lungo la zona protetta utilizzando l'apposito test
piece (TP-14 o TP-30), secondo lo schema di Fig 20 - page 25.
ESPE has to be correctly aligned, press slightly on the product side in both directions the red LED must not
turn on
The activation of the TEST function (on TX side) causes the opening of the OSSD outputs (red LED, OSSD on
RX side, ON and controlled machine stop)
The response time at machine STOP, including the ESPE and machine response times, must be included in
the limits defined in the calculation of the safety distance (refer to chapter INSTALLATION page 17).
The safety distance between the dangerous parts and ESPE must comply with the requirements indicated in
chapter INSTALLATION page 17.
A person must not access or remain between ESPE and the dangerous parts of the machine
Access to the dangerous areas of the machine must not be possible from any unprotected area
ESPE must not be disturbed by external light sources, ensuring that it remains in NORMAL OPERATION
condition for at least 10-15 minutes and, placing the specific test piece in the protected area, in the SAFE state
for the same period.
Verify the correspondence of all the accessory functions, activating them in the different operating conditions.
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Fig 21 - Fixed brackets mounting procedure
Fig 22 - Anti-vibration dampers
3 MECHANICAL MOUNTING
The emitting (TX) and receiving (RX) units must be installed with the relevant sensitive surfaces facing each other.
The connectors must be positioned on the same side and the distance must be included within the operating range
of the model used (see cfr.TECHNICAL DATA page 60).
The two units must be positioned the most aligned and parallel possible.
The next step is the fine alignment, as shown in chapter ALIGNMENT PROCEDURE page 32.
Outfit angled fixing brackets kit, for units mounting, must be used as described below (Fig 21 - page 26).
Adjustable supports for adjusting unit inclinations around the axes are available on request (see
cfr.ACCESSORIES page 65).
To mount the angled fixing brackets kit, place the threaded pins metallic insert into the dedicated side seat of the
terminator cap side light curtain closing cap; slide the insert towards the metallic drawn profile groove.
Fix the bracket against the profile by tightening the M5 hexagonal nuts. It’s possible to slide the bracket group
along their dedicated rail and fix it once again just working on the above mentioned nuts.
In case of applications with particularly strong vibrations, vibration dampers, together with mounting brackets, are
recommended to reduce the impact of the vibrations.
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Fig 23 - Light curtain dimensions
MODEL
L (mm)
A (mm)
B (mm)
C (mm)
SG2-30-030-OO-W
306.3
86.3
110
-
SG2-30-045-OO-W
456.3
236.3
110
-
SG2-30-060-OO-W
606.2
306.2
150
-
SG2-30-075-OO-W
756.2
406.2
175
-
SG2-30-090-OO-W
906.1
506.1
200
-
SG2-30-105-OO-W
1056.1
606.1
225
-
SG2-30-120-OO-W
1206
966
150
453
SG2-30-135-OO-W
1356
1066
175
503
SG2-30-150-OO-W
1505.9
1166
200
553
SG2-30-165-OO-W
1655.9
1266
225
603
SG2-30-180-OO-W
1805.8
1366
250
652.9
The recommended mounting positions according to the light curtain length are shown in Fig 23 - page 27 and in
the following table.
All electrical connections to the emitting and receiving units are made through some particular cables; these cables
are composed of a rectangular 18 pin connector on light curtain side and M12 male connector(s) on the other side.
The Muting cable allows to have on the receiving unit one M12 12-pole connector and one M12 5-pole connector.
The Blanking cable allows to have on the receiving unit one M12 12-pole connector.
The emitting unit has one M12 5-pole connector (both in Muting and Blanking mode).
The cables have to be connected on the bottom side of the light curtains (leds and push button side) by removing
the white cap that is present.
Take care that the terminator cap (CVL-5196, see cfr.INCLUDED ACCESSORIES page 63) is connected on the
top side of the light curtains.
If this connection misses, Master and Slave units go in critical Communication failure.
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Fig 27 - M12 Connectors pinout
Fig 28 - Muting configuration
Fig 29 - Muting configuration receiver
Fig 30 - Configuration emitter
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Fig 31 - Connection to SE-SR2 Safety Relais
The TEST button must be located in such a way that the operator can check the
protected area during any test.
The RESET/RESTART/ALIGN button must be located in such a way that the operator
can check the protected area during any reset operation.
4.2 NOTES ON CONNECTIONS
For the correct operation of the safety light curtains, the following precautions regarding the electrical connections
have to be respected:
Do not place connection cables in contact with or near high-voltage cables and/or cable undergoing high
current variations (e.g. motor power supplies, inverters, etc.).
Do not connect in the same multi-pole cable the OSSD wires of different light curtains.
The TEST wire must be connected through a N.O. button to the supply voltage of the ESPE.
The device is already equipped with internal overvoltage and overcurrent suppression devices.
The use of other external components is not recommended.
Example: connection to the safety relay SE-SR2
The figures show the connection between the safety light curtains and the safety relay of the SE-SR2 series
functioning in the Automatic Restart mode (left side) and Manual Restart with monitoring (right side).
Do not use varistors, RC circuits or LEDs in parallel at relay inputs or in series at OSSD outputs.
The OSSD1 and OSSD2 safety contacts cannot be connected in series or in parallel, but can be used
separately, conforming to the plant’s safety requirements.
If one of these configurations is erroneously used, the device enters into the output failure condition (see
cfr.USER INTERFACE AND DIAGNOSTICS page 54).
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Fig 32 - OSSDs connection
Fig 33 - Behaviour of OSSDs
Connect both OSSDs to the device to control.
Failure to connect an OSSD to the activating device jeopardizes the system safety degree that the light curtain
has to control.
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Fig 34 - Description of the beams
Fig 35 - Alignment timings
5 ALIGNMENT PROCEDURE
The alignment between the emitting and the receiving units is necessary to obtain the correct operation of the light
curtain.
A good alignment prevents outputs instability caused by dust or vibrations.
The alignment is perfect if the optical axes of the first and the last emitting unit's beams coincide with the optical
axes of the corresponding elements of the receiving unit.
Since the light curtain has two beams for the synchronization, let’s call SYNC1 the sync beam at the bottom, the
first beam of the array, and SYNC2 the sync beam on the opposite part of the light curtain, the last beam of the
array.
The figure shows that the first beam is located at the bottom edge of the light curtain, near to led display.
The last beam is at the opposite near the terminator cap. These two beams are the synchronization beams too.
The Alignment function can be activated by simply keeping pressed the external normally open push-button linked
to RESET/RESTART/ALIGN input (pin 3 of M12-12 poles – RX side) at start-up until the second led (red) begins to
blink indicating the activation of the Alignment function, as shown in the following timing diagram. When a good
state of alignment is reached a power OFF and a power ON operation carry back the ESPE in normal operation.
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Fig 36 - Alignment status
In Alignment Mode ESPE is always in Safe State and the OSSDs are kept OFF.
The state of alignment is estimated from RX unit by reading the received signal level of each beam compared on 4
factory established thresholds. First and last beams received level get some more weight.
In alignment mode user interface informs the user about quality and level of alignment:
Keep the receiver in a steady position and set the emitter until the yellow SYNC1 LED is OFF. This condition
shows the effective alignment of the first synchronisation beam
Rotate the emitter, pivoting on the lower optics axis, until the yellow SYNC2 LED is OFF
Delimit the area in which alignment is good and steady through some micro adjustments - for the first and then for
the second unit – in order to have the maximum alignment LEVEL () and then place both units in the
centre of this area
Fix the two units firmly using brackets. Verify that the LEVEL on the RX unit is as high as possible and beams are
not interrupted, then verify that all LEVEL Led turn OFF if even one single beam is interrupted. This verification
shall be made with the special cylindrical “Test Piece” having a size suitable to the resolution of the device used
(see cfr.Controls after first installation page 24).
Switch-off and on the device in standard operating mode. The alignment level is monitored also during the device
normal operation with the same display (see cfr.User interface page 54). Once the light curtain has been aligned
and correctly fastened, the signal display is useful both to check the alignment and show a change in the
environmental conditions (occurrence of dust, light disturbance and so on) via signal level monitoring.
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Fig 37 - User interface
6 FUNCTIONS SETTING
ESPE operation functions and parameters configuration can be performed by means of push-buttons; this setting
lets the user select among basic functions / basic parameters with the help of push buttons and led user interface
(available on both RX and TX unit)
Basic configuration mode:
A user interface of 8 leds and 3 protected push buttons lets the user operate basic configuration. Leds are the
same used for user interface in normal operation.
The user must use the provided special tool (see cfr.INCLUDED ACCESSORIES page 63) to activate push
buttons thus accidental access to safety configuration is avoided.
Basic configuration steps:
In the right side of user control panel (on both units of the light curtain) a setting interface composed by 3 push
buttons is present; the purpose of the interface is to let the user set light curtain locally.
Setting interface is composed by a CONFIRM push button used to enter in BCM and to confirm the selected
configuration, a SELECT push button used to roll by different functions and an ENABLE push button to
activate/deactivate the current function.
Here below the necessary steps for BCM configuration:
Keep CONFIRM button pressed to enter Basic Configuration Mode
A Test Pattern is shown on led interface; carefully check that ALL LED are lit in sequence from 2 to 8, then
current configuration is shown
Choose function to set by SELECT button; selected led blinks
Configure selected function with ENABLE button (switch led on/off)
Repeat steps 3 and 4 until desired configuration is visualized
Keep CONFIRM button pressed to authorize the new configuration
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6.1 RESET TO FACTORY CONFIGURATION
User can also reset ESPE at factory configuration settings with the following push button action:
Press and keep pressed CONFIRM button for at least 9 sec. (but less than 30 sec. otherwise the light curtin
goes in lockout failure)
The leds blink for a while, then the light curtain resets
After reset the light curtains begins its normal functioning with the factory configuration.
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Fig 38 - RX Function list
Fig 39 - Partial Muting selection
Fig 40 - TX Function list
The default configuration is indicated in bold characters
6.2 FUNCTION LIST
The functions that can be chosen in SG2 MUTING are listed in the following tables.
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Fig 41 - Restart timings (auto)
Fig 42 - Restart connection (auto)
7 FUNCTIONS
This chapter deals with all the functions of the light curtain.
7.1 RESTART MODE
An opaque object detected by the beams causes the switching of the OSSD outputs (i.e. the opening of the safety
contacts - SAFE condition).
The restart mode allows the user to define how the light curtain returns in a Normal Operation condition.
The restart of the ESPE (i.e. the closing of the OSSD safety contacts - SAFE condition) can be carried-out in two
different ways: Automatic or Manual Restart.
Automatic Restart: when an opaque object is detected, the ESPE enters in the SAFE condition. Then, after the
object has been removed from the controlled area, the ESPE begins its normal functioning again.
The response time is the time between the object introduction in the protected area and the OSSDs achieving the
OFF state (SAFE); the recovery time is the time within OSSDs go in the ON state (SAFE) after the object is
removed.
These times are function of length. Please refer to the tables in chapter 12 for further details.
Tutti questi tempi sono funzioni di lunghezza. Fare riferimento alle tabelle contenute nel cap.AVAILABLE MODELS AND RESPONSE TIMES page 61 per ulteriori dettagli.
In Automatic Restart the RESET/RESTART/ALIGN input (pin 3 of M12-12 poles – RX side) has to be left floating.
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Fig 43 - Restart timings (manual)
Fig 44 - Restart connection (manual)
Fig 45 - Restart Mode
Carefully assess risk conditions and reset modes. In applications protecting access to
dangerous areas, the automatic reset mode is potentially unsafe if it allows the operator
to pass completely beyond the sensitive area.
In this case, the manual reset or, for example, the manual reset of the SE-SR2 relay (see
cfr.ACCESSORIES page 65) is necessary.
Manual Restart: after the ESPE has detected an opaque object in the controlled area, the light curtain begins its
normal functioning only by pressing the Restart button (normal open push button) and after the object has been
removed from the controlled area.
The OSSDs go in normal operation state after the RESTART signal goes low, and not after 500msec.
A timeout greater than 5s on the high RESTART brings the ESPE in failure lockout.
In Manual Restart the RESET/RESTART/ALIGN input (pin 3 of M12-12 poles – RX side) has to be connected to a
24VDC normally-open contact.
Here below the way to select the restart mode is explained, both through push-button and the graphic user
interface.
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Fig 46 - Test timings
7.2 TEST
The TEST function can be activated by pressing the 24VDC normally-open push-button connected to TX unit TEST
input (pin 2 of M12-5 poles) for at least 0.5 seconds.
The TEST disables the emission stage, so the RX side sees interrupted all beams and the OSSD goes low within
response time.
As shown in the timing diagram below, the OSSDs go OFF (BREAK status) after 500msec (plus a cycle time) and
after the response time of the light curtain.
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Fig 47 - Reset timings
7.3 RESET
When ESPE locks into failure state user can go back to Normal Operation with a power cycle or using the
activation of RESET function (non critical failures only).
To activate RESET function the 24VDC normally-open button connected to RESET/RESTART/ALIGN input (pin 3
of M12-12 poles – RX side) has to be kept pressed for at least 5 seconds in non critical failure state.
For all critical failures a power cycle is necessary.
When in failure state the light curtain can be reset with the procedure explained above except the case of failure on
microprocessor, for which a power cycle is necessary.
If the error is not removed, the light curtain goes in lockout failure again.
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Fig 48 - PNP configuration
Fig 49 - EDM timings (PNP configuration)
In normal operation the third led switched on in the user interface indicates that this
function is active.
7.4 EDM
The External Device Monitoring (EDM) function controls external devices by verifying the OSSDs status.
EDM enabled:
When EDM is enabled in PNP configuration it’s necessary to connect EDM input (pin 6 of M12-12 poles - RX) to a
24 VDC normally-closed contact of the device to be monitored.
The figure below shows how to connect the EDM input.
The function controls the 24VDC normally-closed contact switching according to the changes of the OSSDs’ status.
The EDM status is antivalent with OSSDs’: the timing diagram explains the relationship between the cause
(OSSDs) and the effect (EDM) with the maximum permissible delay.
Tc <= 350 msec (time between OSSD OFF-ON transition and EDM test)
To >= 100 msec (time between OSSD ON-OFF transition and EDM test)
(two different times for the mechanical contact driven by a spring)
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Fig 50 - EDM connection (PNP configuration)
Fig 51 - EDM Selection
EDM disabled:
When EDM is disabled it’s necessary to leave the EDM input floating.
7.5 EDM SELECTION
This function lets the user to select or exclude the monitoring of the external switching devices.
To increase safety level, when EDM is set OFF, at start-up ESPE checks if EDM input is floating.
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Fig 52 - Reduction range
Fig 53 - Reduction Range
7.6 REDUCTION RANGE
This function allows the user to select the maximum operating distance at which the curtains can be mounted.
If TX is configured as Long Range the maximum operating distance is 20m; if TX is configured as Short Range the
maximum operating distance is 12m.
In particular, if long range is selected TX and RX can be mounted at the maximum allowed operating distance;
short range is indicated in those cases in which multiple couples of light curtains have to be mounted near and no
code can be used.
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Fig 54 - L-shaped version with
integrated Muting sensors for
unidirectional Muting
Fig 55 - T-shaped version with
integrated Muting sensors for
bidirectional Muting
Fig 56 - Linear version with
external Muting sensors
Select carefully the configuration, as a wrong configuration can cause the incorrect
functioning of the Muting function and a reduction of the safety level. For correct use of
Muting, Please refer to the relevant reference standards.
The Muting sensors must be positioned in such a way that the activation of the Muting
function is not possible with the accidental passing of a person.
Particular attention must be paid to the use of the one-way L-Muting mode: the external
Muting sensors or the SG-L-ARMS Muting arms must be positioned so as to allow the
passage of the material coming out of the dangerous area protected by the light curtain.
7.7 MUTING
Muting function allows automatic deactivation of the safety function on the whole or part of protected height in order
to carry out definite cyclical operations without blocking machine work.
As the pertaining safety requirements demand, ESPE is equipped with two Muting activation inputs, MUTING1 and
MUTING2.
The Muting sensors must be able to recognise the passing material (pallets, vehicles, …) according to material’s
length and speed.
In case of different transport speeds in the Muting area, it is necessary to consider their effect on the total Muting
duration.
The Muting function excludes the light curtain during functioning, maintaining active the OSSDs’ outputs,
according to particular operating requirements (see figures below).
The safety light curtain is equipped with two inputs (MUTING1 and MUTING2) for the activation of this function,
according to the current Standards.
This function is particularly suitable when an object, but not a person, has to pass through the dangerous area,
under certain conditions.
It is important to remember that the Muting function represents a forced condition of the system and therefore
has to be used with the necessary precautions.
If MUTING1 and MUTING2 inputs are activated by two Muting sensors or actuators, these should be correctly
connected and positioned in order to avoid undesired Muting or potentially dangerous conditions for the
operator.
MUTING1 and MUTING2 can’t be activated simultaneously.
State of Muting is signalled by an external Muting Lamp (that can be connected to the light curtains with the pin
10 of the M12-12 poles connector) and by some leds on the user interface. When the Muting function is ON the
LAMP and the leds begin to blink.
During the installation take care to place the lamp in a position as visible as possible.
If the external lamp is broken and/or not connected, the Muting request causes a SAFE lockout condition and
the corresponding failure is signalled.
If both first and last beams are intercepted by the passing material the light curtain recovery time may be
longer. A material moving faster than 1 m/s could lead light curtain to switch in OFF-state at the end of Muting
sequence.
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Fig 57 - Typical Muting Application
7.7.1 Muting function disable
During light curtain operations Muting function can be dynamically disabled or enabled: when disabled no valid
Muting request will be accepted at the MUTINGX inputs and safety function will always be on.
The user can disable the Muting function at runtime by setting a high level on the signal MUTING DISABLE (pin 7
of the M12-12 poles connector).
7.7.2 Muting signalling devices
In order to make use of Muting function, it is compulsory to connect a dedicated signalling device (lamp); without it
the light curtain goes in failure lock-out state.
Both incandescent and LED lamps are allowed. In case of use of LED lamp, take care to connect it respecting the
right polarity .
A Lamp TEST is executed cyclically when the lamp is lighted on in order to guarantee the detection of lack of
functionality.
If a lamp break is detected, ESPE goes in Lamp Failure Lock-Out state and shows the related message on the
display (refer to cfr.TECHNICAL DATA page 60 for informations about the lamp).
7.7.3 Typical Muting application and safety light curtain connection
The figure shows a typical Muting application: a protection installed on a conveyor should allow the pack passingby but not the worker.
The ESPE temporarily suspends its safety function on a correct activation sequence of A1, B1, A2, B2 sensors.
These sensors can be optical, mechanical, proximity sensors … etc., with high output PNP when the object is
detected.
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Fig 58 - T Muting timings
7.7.4 Muting direction
The ESPE can be used with both bidirectional (T type, four sensors) and monodirectional (L type, two sensors)
Muting.
Bidirectional Muting can be used in those applications in which the packs can move in both directions and
monodirectional Muting can be used in those applications in which the packs move in one direction only.
In BCM the maximum activation delay between MUTING1 and MUTING2 (T12max) is 4 sec.
Muting T
In T type operations the device enters Muting function if the input MUTING2 goes high within a fixed T12max after
the rise of MUTING1 (or viceversa).
The Muting function ends as soon as the signal on MUTING1 or MUTING2 goes low. A further custom delay
(Tdelay) may be set by the user in a 0-1000 ms range. The maximum activation delay between MUTING1 and
MUTING2 (or viceversa) can be set by the user from a minimum of 1 sec to a maximum of 16 sec (T12max).
After this time if the user wants to enter in Muting has to deactivate the Muting input and start the sequence from
the beginning.
The sensors named A1/A2 are connected to the same Muting input (MUTING1) and the sensors named B1/B2 are
connected to MUTING2.
The sensors that end with “1” are on the same side of the light curtain and are on the opposite side of the sensors
that end with “2”.
“D” is the distance at which the sensors A1/A2 or B1/B2 have to be mounted; it depends on the package length (L):
“d1” is the maximum distance between the Muting sensors; it depends on the package speed (V):
“d2” is the maximum distance for the Muting request to be accepted; it depends on the package speed (V):
where “T12” is the activation delay between MUTING1 and MUTING2 that is selectable by the user by means of
ACM.
D < L
d1max[cm] = V[m/s] * T12[s] * 100,
d2max[cm] = V[m/s] * T12[s] * 100,
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Fig 59 - Muting T connection
Fig 60 - Muting L timings
Muting L must be used exclusively for removing materials from the dangerous area.
Muting L
In L type operation the device enters Muting function if the inputs go high in a particular order: MUTING1 has to
activate first, then MUTING2 can activate; if MUTING2 activates before MUTING1, the device doesn’t enter the
Muting function.
“T12” is the activation delay between MUTING1 and MUTING2 that is selectable by the user by means of ACM.
The Muting function ends after a time that is a multiple of the activation delay between the two sensors (this time is
m * T12). The value of “m” (T12 multiplier) can be chosen by the user. In BCM this value is 2 by default.
The maximum activation delay between MUTING1 and MUTING2 can be set by the user from a minimum of 1 sec
to a maximum of 16 sec.
After this time if the user wants to enter in Muting has to deactivate the Muting input and start the sequence from
the beginning.
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Fig 61 - Muting L connection
Fig 62 - Muting Direction
The sensor named A is the farthest from the light curtain, so its beam is intercepted first. Making reference to the
next figure, since the pack goes from right to left only, B sensor can’t be intercepted first; if this happens the device
doesn’t enter Muting function.
“V” indicates a constant speed. As a consequence, “d1” is fixed according to the following formula:
d1[cm] = V[m/s] * T12[s] * 100
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Fig 63 - Muting timeout
Fig 64 - Muting timeout
Infinite is not EN 61496-1: 2013 compliant!
7.7.5 Muting timeout
Muting timeout is a time that defines the maximum duration of Muting function; after the timeout the Muting ends.
The user can select a timeout of 10 minutes or infinite; “infinite” means that muting timeout could never end: if the
conditions of muting persist, the muting function still continues to exist.
This is not compliant with the EN 61496-1: 2013 rule and the user is warned about it.
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Fig 65 - Partial Muting Selection
7.7.6 Partial Muting
It’s possible to configure the type of muting: total or partial.
Partial muting can be useful in those applications in which the user wants to limit the muting function effects to
selected zones only.
Hereafter the table that resumes the configuration in case of partial muting is presented.
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Fig 66 - Override connection
Fig 67 - Override attention status
7.8 OVERRIDE
Override function allows the user to force safety function deactivation whenever it’s necessary to restart the
machine despite one or more ESPE beams are intercepted.
The aim is clearing protected area of any working materials blocked ahead of ESPE because of (i.e.) a cycle
anomaly.
Override redundant inputs have to be connected to a 24VDC normally-open contact and to a GND normally-open
contact.
As the pertaining requirements request ESPE is equipped with two Override activation inputs: OVERRIDE1 and
OVERRIDE2 (respectively, pin 4 of the M12-12 poles connector and pin 9 of the M12-12 poles connector – RX).
Necessary condition for override request to be accepted is: ESPE in SAFE state and at least one Muting sensor
intercepted.
When such condition is verified user interface visualizes “override attention status” with both red OSSD led and
alignment leds blinking.
Then, an override request is accepted only if signals at OVERRIDE X inputs follow the timings shown hereafter.
Override function will automatically end when one of the following conditions is present:
all the Muting sensors are deactivated (in a T-Muting configuration)
all the Muting sensors are deactivated AND no beams are intercepted (in a L-Muting configuration)
the pre-determined time limit has expired
the requirements for actuation aren’t met anymore (for example, one override input is deactivated)
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Fig 68 - Override timings (level trigger)
Fig 69 - Override timings (edge trigger)
Fig 70 - Override Mode
7.8.1 Override mode
It’s possible to configure the trigger of override inputs: Level or Edge.
As explained in diagrams below two types of override trigger sequence are accepted on external inputs:
LEVEL TRIGGER: Override engaged until both contacts are closed AND at least one Muting sensor is intercepted.
OVERRIDE STATUS: status is an output signal that informs the user if the override inputs are active with override
conditions present.
EDGE TRIGGER: override engaged on contacts closing until at least one Muting sensor is intercepted. In this case
the override state rests even if the override contacts are released.
The device exits the override state when one of the following events happens:
- the Muting sensors are deactivated (T-Muting) or the Muting sensor are deactivated AND no beams are
intercepted (L-Muting)
- the timeout expires
OVERRIDE STATUS: is an output signal that informs the user if the override inputs are active with override
conditions present.
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Fig 71 - Override timeout timings
7.8.2 Override timeout
Override status timeout is 120s: if Override conditions remain active and both Override contacts remain closed (this
condition only in Level Trigger Mode) more than 120s, the Override goes low in any case after a maximum of 120s.
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Fig 72 - User interface (RX)
8 USER INTERFACE AND DIAGNOSTICS
8.1 USER INTERFACE
In the left side of user control panel (on both units of light curtains) an 8 LEDs user interface helps customer to
control and check the state of the light curtain, for alignment mode, normal operation and for troubleshooting
activity.
User interface allows the user to understand which is the configuration set with the push buttons.
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Fig 73 - User interface (RX)
A critical failure can’t be re-established with a Reset procedure but it’s necessary to
switch-off and switch-on the light curtain; if the failure persists, please contact the
DATALOGIC Technical Support.
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Fig 74 - User interface (TX)
A critical failure can’t be re-established with a Reset procedure but it’s necessary to
switch-off and switch-on the light curtain; if the failure persists, please contact the
DATALOGIC Technical Support.
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9 PERIODICAL CHECKS
The following is a list of recommended check and maintenance operations that should be periodically carried-out
by qualified personnel (cfr. Controls after first installation page 24)
Check that:
The ESPE stays in SAFE state during beam interruption along the entire protected area, using the specific Test
Piece (TP-14 or TP-30)
The ESPE is correctly aligned. Press slightly product side, in both directions and the red LED (named OSSD
on RX side) must not turn ON.
Enabling the TEST function (on TX side), the OSSD outputs should open (the red LED, OSSD on RX side, is
ON and the controlled machine stops)
The response time upon machine STOP (including response time of the ESPE and of the machine) is within
the limits defined for the calculation of the safety distance (see chapter INSTALLATION page 17).
The safety distance between the dangerous areas and the ESPE are in accordance with the instructions
included in chapter INSTALLATION page 17.
Access of a person between ESPE and machine dangerous parts is not possible nor it is possible for him/her
to stay there
Access to the dangerous area of the machine from any unprotected area is not possible
The ESPE and the external electrical connections are not damaged.
The frequency of checks depends on the particular application and on the operating conditions of the safety light
curtain.
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Safety MUST be a part of our conscience.
9.1 GENERAL INFORMATION AND USEFUL DATA
The safety devices fulfil their safety function only if they are correctly installed, in accordance with the Standards in
force.
If you are not certain to have the expertise necessary to install the device in the correct way, DATALOGIC is at
your disposal to carry out the installation.
The device uses fuses that are not self-resetting. Consequently, in presence of short-circuits causing the cut-off of
these fuses, both safety light curtains (RX and TX) shall be sent to DATALOGIC Repair Service Department.
A power failure caused by interferences may cause the temporary or trigger Safety State over connected safety
Fieldbus, but the safe functioning of the light curtain will not be compromised.
9.2 WARRANTY
The warranty period for this product is 36 months.
See the General Terms and Conditions of Sales at www.datalogic.com for further details.
DATALOGIC will not be liable for any damages to persons and things caused by the non-observance of the correct
installation modes and device use.
In presence of a non-functioning device, always return the emitting and receiving units for repair or replacement.
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10 DEVICE MAINTENANCE
DATALOGIC safety light curtains do not require special maintenance operations.
To avoid the reduction of the operating distance, optic protective front surfaces must be cleaned at regular
intervals.
Use soft cotton cloths damped in water.
Do not apply too much pressure on the surface in order to avoid making it opaque.
Please do not use on plastic surfaces or on light curtain painted surfaces:
alcohol or solvents
wool or synthetic cloths
paper or other abrasive materials
10.1 PRODUCT DISPOSAL
Under current Italian and European laws, DATALOGIC is not obliged to take care of product disposal at the end of
its life.
DATALOGIC recommends to dispose of the product in compliance with local laws or contact authorised waste
collection centres.
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SAFETY CATEGORY:
Type 2 (rif. EN 61496-1: 2013)
SIL 1 (rif. EN 61508)
SIL CL 1 (rif.EN 62061:2005/A2: 2015)
PL c, Cat. 2 (rif. EN ISO 13849-1: 2015)
PFHd [1/h] = 1,04E -08
MTTFd [years] = 273
ELECTRICAL DATA
Power supply (Vdd):
24 VDC ± 20%
Consumption (TX):
3 W max
Consumption (RX):
5 W max (without load)
Outputs:
2 PNP
Short-circuit protection:
1.4 A max
Output current:
0.5 A max su ciascuna uscita
Output voltage – status ON:
Vdd –1 V min
Output voltage – status OFF:
0.2 V max
Capacitive load:
2.2 uF @ 24Vcc max
Response times:
see chapter
AVAILABLE MODELS AND RESPONSE TIMES page 61
Classe I / Classe III
(see chapter ELECTRICAL CONNECTIONS page 28)
Current for External Lamp:
20 mA min; 300 mA max
Connections:
for receiver:
M12 12-pole + M12 5-pole
for emitter:
M12 5-pole
Cables length (for power supply):
50 m. max
OPTICAL DATA
Emitting light (λ):
Infrared, LED (950 nm)
Resolution:
30 mm
Operating distance:
0.2…20 m
Ambient light rejection:
EN 61496-2: 2013
MECHANICAL AND ENVIRONMENTAL DATA
Operating temperature:
0…+ 50 °C
Storage temperature:
- 25…+ 70 °C
Temperature class:
T6
Humidity:
15…95 % (no condensation)
Mechanical protection:
IP 65 EN 60529
Vibrations:
Width 0.35 mm, Frequency 10 … 55 Hz
20 sweep per axis, 1octave/min EN 60068-2-6
Shock resistance:
16 ms (10 G) 1,000 shocks per axis EN 60068-2-29
Housing material:
Painted aluminium (yellow RAL 1003)
Front side material:
PMMA
Caps material:
PBT Valox 508 (PANTONE 072C)
Cover material:
PC LEXAN
Weight:
1.35 kg per linear meter for single unit
11 TECHNICAL DATA
* Recovery Time may be longer if both first and last optics are intercepted.
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MODEL
Controlled height
(mm)
No. Beams
Response time
(msec)
Resolution
(mm)
SG2-30-030-OO-W
300
16
13
30
SG2-30-045-OO-W
450
24
14
30
SG2-30-060-OO-W
600
32
15
30
SG2-30-075-OO-W
750
40
16
30
SG2-30-090-OO-W
900
48
17
30
SG2-30-105-OO-W
1050
56
18
30
SG2-30-120-OO-W
1200
64
19
30
SG2-30-135-OO-W
1350
72
19
30
SG2-30-150-OO-W
1500
80
20
30
SG2-30-165-OO-W
1650
88
21
30
SG2-30-180-OO-W
1800
96
22
30
Product
PL
CAT
SIL
SIL
CL
PFHd
(1/h)
T1
(years
)
MTTFd
(anniye
ars)
DC
SFF
HFT
SG2-30-030-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-045-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-060-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-075-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-090-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-105-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-120-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-135-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-150-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-165-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
SG2-30-180-OO-W
c 2 1 1 1,04E-08
20
273
97,50%
98,40%
0
12 AVAILABLE MODELS
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Fig 75 - Overall dimensions (mm)
MODEL
Lt (mm)
L (mm)
SG2-30-030-OO-W
150
306,3
SG2-30-045-OO-W
300
456,3
SG2-30-060-OO-W
450
606,3
SG2-30-075-OO-W
600
756,3
SG2-30-090-OO-W
750
906,3
SG2-30-105-OO-W
900
1056,3
SG2-30-120-OO-W
1050
1206,3
SG2-30-135-OO-W
1200
1356,3
SG2-30-150-OO-W
1350
1506,3
SG2-30-165-OO-W
1500
1656,3
SG2-30-180-OO-W
1650
1806,3
13 OVERALL DIMENSIONS
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MODEL
DESCRIPTION
ST-KSTD
Angled fixing bracket (4 pcs kit)
Fig 76 - Dimensions (mm)
14 INCLUDED ACCESSORIES
Metal angled fixing bracket (ST-KSTD)
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Fig 77 - Dimensions (mm)
Fig 78 - Tool for BCM configuration
14.1 TERMINATOR CAP (CVL-5196)
14.2 TOOL FOR BCM CONFIGURATION
The tool for BCM configuration, when not used, can be inserted in the profile groove by making it enter from the top
of the light curtain.
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MODEL
DESCRIPTION
CODE
ST-KSTD
Angled fixing bracket (4 pcs kit)
95ACC1670
Fig 79 - ST-KSTD
15 ACCESSORIES
(dimensions in mm)
15.1 (ST-KSTD) METAL ANGLED FIXING BRACKET
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MODEL
DESCRIPTION
CODE
ST-K4OR
Orientable supports (4 pcs kit)
95ACC1680
ST-K6OR
Orientable supports (6 pcs kit)
95ACC1690
ST-K4AV
Antivibration supports (4 pcs kit)
95ACC1700
ST-K6AV
Antivibration supports (6 pcs kit)
95ACC1710
Fig 80 - Angled fixing bracket
Fig 81 - Angled fixing bracket + Orientable support
Fig 82 - Angled fixing bracket + Antivibration support
Fig 83 - Angled fixing bracket + Orientable support + Antivibration support
Angled fixing bracket mounting with orientable and antivibration supports
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MODEL
DESCRIPTION
CODE
ST-KP4MP
Angled fixing bracket (4 pcs kit)
95ASE1100
ST-KP6MP
Angled fixing bracket (6 pcs kit)
95ASE1110
Fig 84 - ST-KPxMP
15.2 (ST-KPXMP) PLASTIC ANGLED FIXING BRACKET
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MODEL
DESCRIPTION
CODE
ST-K4OR
Orientable supports (4 pcs kit)
95ACC1680
ST-K6OR
Orientable supports (6 pcs kit)
95ACC1690
ST-K4AV
Antivibration supports (4 pcs kit)
95ACC1700
ST-K6AV
Antivibration supports (6 pcs kit)
95ACC1710
Fig 85 - Angled fixing bracket
Fig 86 - Angled fixing bracket + Orientable support
Fig 87 - Angled fixing bracket + Antivibration support
Fig 88 - Angled fixing bracket + Orientable support + Antivibration support
Angled fixing bracket mounting with orientable and antivibration supports
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MODEL
DESCRIPTION
L (mm)
CODE
SG-PSB 600
Protective stand H=600 mm
600
95ASE2240
SG-PSB 1000
Protective stand H=1000 mm
1000
95ASE2250
SG-PSB 1200
Protective stand H=1200 mm
1200
95ASE2260
SG-PSB 1650
Protective stand H=1650 mm
1650
95ASE2270
SG-PSB 1900
Protective stand H=1900 mm
1900
95ASE2280
Fig 89 - Dimensions (mm)
MODEL
DESCRIPTION
CODE
ST-PS4-SG-SE
Mounting kit (4 pcs kit)
95ASE1750
ST-PS6-SG-SE
Mounting kit (6 pcs kit)
95ASE1760
Fig 90 - Fixing kit
15.3 (SG-PSB) PROTECTIVE STANDS
Mounting kit
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MODEL
DESCRIPTION
CODE
SG-P
Plate kit with springs
95ASE2290
Fig 91 - Dimensions (mm)
Fig 92 - Mounting
15.4 (SG-P) PLATE KIT FOR PROTECTIVE STANDS
Mounting with SG-PSB
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MODEL
DESCRIPTION
L(mm)
X (mm)
CODE
SE-S 800
Column and floor stand H= 800 mm
800
30x30
95ACC1730
SE-S 1000
Column and floor stand H= 1000 mm
1000
30x30
95ACC1740
SE-S 1200
Column and floor stand H= 1200 mm
1200
30x30
95ACC1750
SE-S 1500
Column and floor stand H= 1500 mm
1500
45x45
95ACC1760
SE-S 1800
Column and floor stand H= 1800 mm
1800
45x45
95ACC1770
Fig 93 - Dimensions (mm)
15.5 (SE-S) COLUMNS AND FLOOR STANDS
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MODEL
DESCRIPTION
L1 (mm)
L2 (mm)
L3 (mm)
CODE
SG-DM 600
Deviating mirror version 600 mm
545
376
580
95ASE1680
SG-DM 900
Deviating mirror version 900 mm
845
676
880
95ASE1690
SG-DM 1200
Deviating mirror version 1200 mm
1145
976
1180
95ASE1700
SG-DM 1650
Deviating mirror version 1650 mm
1595
1426
1630
95ASE1710
SG-DM 1900
Deviating mirror version 1900 mm
1845
1676
1880
95ASE1720
Fig 94 - Dimensions ( mm)
MODEL
DESCRIPTION
CODE
SG-DM 150
Deviating mirror version 150 mm
95ASE1670
Fig 95 - SG-DM 150 Dimensions (mm)
15.6 (SG-DM) DEVIATING MIRRORS
The image includes the mirror SG-DM and a mounting kit ST-DM.
The image includes the mirror SG-DM and a mounting kit ST-DM.
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MODEL
DESCRIPTION
CODE
ST-DM
SG-DM mounting kit (2 pcs kit)
95ASE1940
Fig 96 - Mounting kit
MODEL
DESCRIPTION
CODE
ST-PS-DM
Deviating mirror SG-DM mounting kit (2 T-nuts)
95ASE1770
Fig 97 - Mounting kit
Mounting kit for SG-DM with SE-S column and floor stands
For each SG-DM mirror order 1 mounting kit ST-DM.
Mounting kit SG-DM on SG-PSB (ST-PS-DM)
For each SG-DM mirror order 1 mounting kit ST-PS-DM.
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MODEL
DESCRIPTION
CODE
TP-14
Test piece Ø 14mm L=300mm
95ACC1630
TP-20
Test piece Ø 20mm L=300mm
95ACC1640
TP-24
Test piece Ø 24mm L=200mm
95ASE2570
TP-30
Test piece Ø 30mm L=300mm
95ACC1650
TP-34
Test piece Ø 34mm L=200mm
95ASE2580
TP-35
Test piece Ø 35mm L=300mm
95ACC1660
TP-40
Test piece Ø 40mm L=300mm
95ACC1820
TP-50
Test piece Ø 50mm L=300mm
95ACC1790
TP-90
Test piece Ø 90mm L=300mm
95ACC1800
15.7 (TP) TEST PIECE
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MODEL
DESCRIPTION
CODE
CS-A1-03-U-03
5-pole M12 cable (axial) 3 m UL2464
95ASE1170
CS-A1-03-U-05
5-pole M12 cable (axial) 5 m UL2464
95ASE1180
CS-A1-03-U-10
5-pole M12 cable (axial) 10 m UL2464
95ASE1190
CS-A1-03-U-15
5-pole M12 cable (axial) 15 m UL2464
95ASE1200
CS-A1-03-U-25
5-pole M12 cable (axial) 25 m UL2464
95ASE1210
CS-A1-03-U-50
5-pole M12 cable (axial) 50 m UL2464
95A252700
MODEL
DESCRIPTION
CODE
CS-A1-10-U-03
12-pole M12 cable (axial) 3 m UL2464
95A252720
CS-A1-10-U-05
12-pole M12 cable (axial) 5 m UL2464
95A252730
CS-A1-10-U-10
12-pole M12 cable (axial) 10 m UL2464
95A252740
CS-A1-10-U-15
12-pole M12 cable (axial) 15 m UL2464
95A252750
CS-A1-10-U-25
12-pole M12 cable (axial) 25 m UL2464
95A252760
CS-A1-10-U-50
12-pole M12 cable (axial) 50 m UL2464
95A252770
15.8 CONNECTION CABLES
5-pole M12 cables
12-pole M12 cables
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MODEL
DESCRIPTION
CODE
CS-G1-50-B-002
SG EXTENDED TX 0.2m
95A252820
Fig 98 - TX - Pigtail cable
MODEL
DESCRIPTION
CODE
CS-R1-75-B-002
SG EXTENDED RX MUTING 0.2m
95A252810
Fig 99 - RX MUTING - Pigtail cable
15.9 PIGTAIL CABLES
TX - PIGTAIL CABLE
This is the Pig-Tail cable that must be always used for TX UNIT SG4 EXTENDED.
It has a 18 poles socket in one side and a M12 5 poles in the other.
RX MUTING - PIGTAIL CABLE
Presenta un connettore da 18 poli su un lato ed un M12 a 5 poli più un M12 a 12 poli sull’altro.
This is the Pig-Tail cable that must be always used for RX UNIT SG4 EXTENDED when you configure it in
MUTING MODE and DON’T USE SG4-DONGLE. It has a 18 poles socket in one side and a M12 5 poles plus M12
12 poles in the other.
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MODEL
DESCRIPTION
CODE
SG-LP
Laser pointer
95ASE5590
Fig 100 - Dimensions (mm)
Fig 101 - Laser pointer
15.10 (SG-LP) LASER POINTER
The laser pointer of the SG-LP series represents a valid alignment and installation support for the safety light
curtain series.
The pointer can be moved along the light curtain profile to verify the complete device alignment (top and bottom).
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MODEL
DESCRIPTION
CODE
SE-SR2
Type 4 safety relay - 3 NQ 1 NC
95ACC6170
Fig 102 - Safety relay
MODEL
DESCRIPTION
CODE
CSME-03VU24-Y14
EDM Relay
95ASE1270
Fig 103 - EDM Relay
15.11 (SE-SR2) SAFETY RELAY
15.12
The drawing show the connection between the safety light curtain and the Type 4 safety relay of the SE-SR2 series
operating in the automatic Restart mode.
15.13 (CSME-03VU24-Y14) EDM RELAY BOX
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MODEL
DESCRIPTION
CODE
LMS
Muting lamp
95ASE1830
LMS-1
Modular Muting lamp
95ACC1990
LMS-2
Muting lamp –horizontal mounting
95ACC2000
LMS-3
Muting lamp –vertical mounting
95ACC2010
SU-LMS-1A
Basic support for LMS-1
95ACC2020
SU-LMS-1B
Tower module for LMS-1
95ACC2030
Fig 104 - LampLMS
Fig 105 - Lamp LMS-2
Fig 106 - LampLMS-3
Fig 107 - Module SU-LMS-1A + LMS-1
Fig 108 - Module SU-LMS-1B + LMS-1
15.14 (LMS) MUTING LAMPS
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MODEL
DESCRIPTION
CODE
SG-AS-ARM V2
Single active arm with RRX sensors V2
95ASE1841
SG-PR-ARM V2
Single passive arm with reflectors V2
95ASE1851
SG-F1-G1-ARMS
F1-G1 Muting arms
95ASE1880
SG-F2-G2-ARMS
F2-G2 Muting arms
95ASE1890
Fig 109 - Dimensions (mm)
15.15 SINGLE MUTING ARMS
The SG4 EXTENDED and SG2 MUTING series light curtains can be equipped with retro-reflective Muting arms to
obtain the “T” or “L” configuration.
The following figures show, respectively, the dimensions of single active arms, of single passive arms, and the
corresponding fixing bracket stand alone.
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MODEL
DESCRIPTION
CODE
SG-CB-C
Muting arms mounting bracket kit
95ASE1930
Fig 110 - Mounting bracket
To obtain a ‘L’ configuration with F/G arms use SG-F1-G1-ARMS together with 2 pieces
of SG-CB-C.
Please install F1 arm on RX unit and G1 arm on TX in order to have them facing one to
another.
To obtain a ‘T’ configuration with F/G arms use SG-F1-G1-ARMS and SG-F2-G2-ARMS
together with 2 pieces of SG-CB-C.
Please install F1 and F2 arms on RX unit and G1 and G2 arms on TX in order to have
them facing one to another.
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MODEL
DESCRIPTION
CODE
SG-L-ARMS V2
Active/Passive arms L couple V2
95ASE1861
SG-T-ARMS V2
Active/Passive arms T couple V2
95ASE1871
Fig 111 - Active/Passive arms L
Fig 112 - Active/Passive arms T
15.16 DOUBLE MUTING ARMS
The following figures show, respectively, the dimensions of single active arms with fixing bracket mounted, of single
passive arms with fixing bracket mounted, of double active arms with fixing bracket mounted, of double passive
arms with fixing bracket mounted.
ACTIVE/PASSIVE ARMS L
ACTIVE/PASSIVE ARMS T
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Fig 113 - Light curtain + Active/Passive arms L
Fig 114 - Light curtain + Active/Passive arms T
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MODEL
DESCRIPTION
CODE
SG-ML-S8-L
Kit for L Muting, left side: 2 sensors S8-PR-5-B01-PP;
2 reflectors; 1 active arm; 1 passive arm; 2 cable-lockers;
2x 700mm cables with M12 connectors
95ASE2600
SG-ML-S8-R
Kit for L Muting, right side: 2 sensors S8-PR-5-B01-PP;
2 reflectors; 1 active arm; 1 passive arm; 2 cable-lockers;
2 x 700mm cables with M12 connectors
95ASE2370
SG-ML-S8-200-L
Kit for L Muting, left side: 2 sensors S8-PR-5-B01-PP;
2 reflectors; 1 active arm; 1 passive arm; 2 cable-lockers;
2 x 2000mm cables with M12 connectors
95ASE2590
SG-ML-S8-200-R
Kit for L Muting, right side: 2 sensors S8-PR-5-B01-PP;
2 reflectors; 1 active arm; 1 passive arm; 2 cable-lockers;
2 x 2000mm cables with M12 connectors
95ASE2340
SG-ML-S100-L
Kit for L Muting, left side: 2 sensors S100-PR-5-B10-PK;
2 reflectors; 1 active arm; 1 passive arm; 2 cable-lockers;
2x 700mm cables with M12 connectors
95ASE2620
SG-ML-S100-R
Kit for L Muting, right side: 2 sensors S100-PR-5-B10-PK;
2 reflectors; 1 active arm; 1 passive arm; 2 cable-lockers;
2x 700mm cables with M12 connectors
95ASE2430
SG-ML-S100-200-L
Kit for L Muting, left side: 2 sensors S100-PR-5-B10-PK;
2 reflectors; 1 active arm; 1 passive arm; 2 cable-lockers;
2 x 2000mm cables with M12 connectors
95ASE2610
SG-ML-S100-200-R
Kit for L Muting, right side: 2 sensors S100-PR-5-B10-PK;
2 reflectors; 1 active arm; 1 passive arm; 2 cable-lockers;
2 x 2000mm cables with M12 connectors
95ASE2400
Fig 115 - L-MUTING
15.17 (SG-M) MUTING ARMS WITH EXTERNAL SENSORS
System is compatible with all SG safety light curtains with muting function feature.
For correct use and safety prescriptions refer to the user manual of DATALOGIC safety light curtains where muting
kit is installed.
With muting modular systems is possible to arrange multiple configurations.
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MODEL
DESCRIPTION
CODE
SG-MT-S8
Kit for T Muting: 4 sensors S8-PR-5-B01-PP;
4 reflectors; 2 active arms; 2 passive arms; 4 cable-lockers;
4 x 700mm cables with M12 connectors
95ASE2380
SG-MT-S8-200
Kit for T Muting: 4 sensors S8-PR-5-B01-PP;
4 reflectors; 2 active arms; 2 passive arms; 4 cable-lockers;
4 x 2000mm cables with M12 connectors
95ASE2350
SG-MT-S100
Kit for T Muting: 4 sensors S100-PR-5-B10-PK;
4 reflectors; 2 active arms; 2 passive arms; 4 cable-lockers;
4 x 700mm cables with M12 connectors
95ASE2440
SG-MT-S100-200
Kit for T Muting: 4 sensors S100-PR-5-B10-PK;
4 reflectors; 2 active arms; 2 passive arms; 4 cable-lockers;
4 x 2000mm cables with M12 connectors
95ASE2410
Fig 116 - T-MUTING
MODEL
DESCRIPTION
CODE
SG-MX-S8
Kit for X Muting; 2 sensors S8-PR-5-B01-PP;
2 reflectors; 2 active arms; 2 passive arms; 4 cable-lockers;
700mm pigtail cables with M12 connectors
95ASE2390
SG-MX-S8-200
Kit for X Muting; 2 sensors S8-PR-5-B01-PP;
2 reflectors; 2 active arms; 2 passive arms; 4 cable-lockers;
2000mm pigtail cables with M12 connectors
95ASE2360
SG-MX-S100
Kit for X Muting; 2 sensors S100-PR-5-B10-PK;
2 reflectors; 2 active arms; 2 passive arms; 4 cable-lockers;
700mm pigtail cables with M12 connectors
95ASE2450
SG-MX-S100-200
Kit for X Muting; 2 sensors S100-PR-5-B10-PK;
2 reflectors; 2 active arms; 2 passive arms; 4 cable-lockers;
2000mm pigtail cables with M12 connectors
95ASE2420
Fig 117 - X-MUTING
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Fig 118 - Phase 1
Fig 119 - Phase 2
Fig 120 - Phase 3
For electrical link of SG-M kit to DATALOGIC safety curtains, is recommended to use
Datalogic Connection Box SG-M-CB.
For each muting system kit is recommended to use same sensors type.
Sensors must be set on Dark Mode.
MOUNTING
Put the arm slider (1) into the column slot (2).
Fix the arm (3) in the desired position by screws (4), 1 Nm recommended tightening torque.
Rotate sensors/reflectors support (5) in the desired position ; if necessary, translate support removing and
spacing cable-locker (6) and fix by screws (7), 2 - 3 Nm recommended tightening torque.
Loosen the two screws (8) and rotate/set the sensor/reflector as desired, then fix by screws (8), 1 Nm
recommended tightening torque.
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Fig 121 - Connection box
* For correct operation of LED indicators, it is mandatory to connect identical sensors
to the four M12 sockets.
15.18 (SG-M-CB) CONNECTION BOX
The SG-M-CB Connection box is part of SG-M accessories for muting, to be used with DATALOGIC safety light
curtains of SG series, with integrated muting function (e.g. SG BODY REFLECTOR MUTING).
Muting sensors can be connected to SG-M-CB Connection box via M12 cables.
The signals are connected to safety light curtain dedicated muting connector via approx. 0.5m long pigtail cable
with M12 female connector.
Aside from the green LEDs* (to indicate sensors output status), the SG-M-CB does not contain any electronic
elements and is therefore not subject to any safety classification.
Features:
- Supply and switching voltage +24V DC
- M12 connection
- Simple connection to safety light curtains
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MODEL
DESCRIPTION
CODE
SG-M-CB
Connection box
95ASE2500
SG-M-CB-KIT
Mounting kit
95ASE2830
Fig 122 - Dimensions
Power supply & Switching voltage:
+24 Vcc ±20%
Current load max.:
1 A
Insulating resistance:
>1009 Ω
Mechanical protection:
IP 65
Operating temperature:
-10°C....+55°C
Storage Temperature:
-25°C....+70°C
Housing material:
PVC, Black (UL Recognized)
Housing Cable (C2):
PVC, Black (UL Recognized)
Housing Connector (C1):
Plug M12-5P A-Coding Female
Housing Connectors (A1;A2;B1;B2):
Sockets M12-5P A-Coding Female
For each muting system kit is recommended to use same sensors type.
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Fig 123 - SG-SRT-1
Fig 124 - SG-SRT-2
MODEL
DESCRIPTION
CODE
SG-SRT-1
Muting connection box
95ASE2050
SG-SRT-2
Muting connection box with lamp
95ASE2060
15.19 (SG-SRT) CONNECTION BOX
The SG-SRT connection boxes are used to facilitate the connection and the use of barriers DATALOGIC SG
BODY MUTING Series.
The SG-SRT-1 box has externally:
- a key switch to activate the OVERRIDE function.
- a TEST / START button lit to implement the functions of Test, Restart, Reset.
The SG-SRT-2 box has externally:
- a key switch to activate the OVERRIDE function.
- a TEST / START button lit to implement the functions of Test, Restart, Reset.
- an integrated lamp for signaling Muting function activation
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MODEL
DESCRIPTION
CODE
SG-BWS-T4
Type 4 safety control unit
957051000
SG-BWS-T4-2
Type 4 safety control unit 4 - 8 single beam devices
957051030
SG-BWS-T4-MT
Type 4 control unit with double Muting
957051010
SG-BWS-T4-2-MT
Type 4 control unit with double Muting for up to 8 photocells
957051040
Fig 125 - SG-BWS-T4 Safety control unit
Fig 126 - SG-BWS-T4-MT Safety control unit
15.20 (SG-BWS) SAFETY CONTROL UNITS
SG-BWS-T4 safety system consists of a control unit enclosed in a plastic housing to be installed on OMEGA/DIN
rail equipped with 16 screw clamps that can be connected up to 4 sets of photocells of the S5-ST, SL5-ST, S300
series.
SG-BWS-T4-MT safety system consists of a control unit enclosed in a plastic housing, to be installed on
OMEGA/DIN rail, equipped with 48 screw clamps that can be connected up to 4 sets of photocells of the S5-ST,
SL5-ST, S300 series and to up to 2 safety light curtains.
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16 GLOSSARY
Detection zone: zone within which a specified test piece will be detected by the ESPE
Safety light curtain: it is an active optoelectronic protective device (AOPD) including an integrated system
consisting of one or several emitting elements and one or several receiving elements forming a detection area with
a detecting capacity specified by the supplier.
Detection capability (or Resolution): the minimum dimension which an opaque object must have in order to
interrupt at least one beams of the ESPE whatever is position across the protected height.
Force-guided contacts: Relay contacts are force guided when they are mechanically connected so that they must
switch simultaneously on input change.
If one contact of the series remains “welded”, no other relay contact is able to move.
That relay characteristic allows the use of EDM function.
OSSD (Output signal switching device): part of the ESPE connected to machine control system.
When the sensor is enabled during standard operating conditions, it switches to disabled status.
ESPE (Electro-sensitive protective equipment): assembly of devices and/or components working together to
activate the protective disabling function or to detect the presence of something and including at least: a sensor,
command/control devices and output signal switching devices.
AOPD (Active optoelectronic protective device): its detection function is achieved thanks to the use of
optoelectronic receivers and emitters detecting the optical beams interruptions inside the device caused by an
opaque object present inside the specified detecting area.
An active optoelectronic protective device (AOPD) can operate both in emitter-receiver mode and in retro-reflective
light curtains.
Protective device: device having the function to protect the operator against possible risks of injury due to the
contact with machine potentially-dangerous parts.
Min.installation distance: min. distance necessary to allow machine dangerous moving parts to completely stop
before the operator can reach the nearest dangerous point. This distance shall be measured from the middle point
of the detecting area to the nearest dangerous point. Factors affecting min. installation distance value are machine
stop time, total safety system response time and light curtain resolution.
EDM (External device monitoring): device used by the ESPE to monitor the status of the external command
devices.
MPCE (Machine primary control element): electrically-powered element having the direct control of machine
regular operation so as to be the last element, in order of time, to operate when the machine has to be enabled or
blocked.
Emitter (TX): unit emitting infrared beams, consisting of a set of optically-synchronised LEDs. The emitting unit,
combined with the receiving unit (installed in the opposite position), generates an optical “curtain”, i.e. the detecting
area.
Restart interlocking device (=RESTART): device preventing machine automatic restart after sensor activation
during a dangerous phase of machine operating cycle, after a change of machine operating mode, and after a
variation in machine start control devices.
Start interlocking device (= START): device preventing machine automatic start if the ESPE is live or the voltage
is disabled and enabled once again.
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Interlock: operating state of ESPE in Manual Restart Mode when all beams are free but the Restart command
hasn’t been received yet.
Normal Operation: operating state of ESPE when all beams are free, OSSD LED lit GREEN in SL light curtain
OSSD1 and OSSD2 are switchen ON.
N.O.: normally opened
N.C.: normally closed
Machine operator: qualified person allowed to use the machine.
Qualified operator: a person who holds a professional training certificate or having a wide knowledge and
experience and who is acknowledged as qualified to install and/or use the product and to carry out periodical test
procedures.
Working point: machine position where the material or semifinished product is worked.
Receiver (RX): unit receiving infrared beams, consisting of a set of optically-synchronised phototransistors. The
receiving unit, combined with the emitting unit (installed in the opposite position), generates an optical “curtain”, i.e.
the detecting area.
Crossing hazard: situation under which an operator crossing the area controlled by the safety device and this
latter stops and keeps the machine stopped until the hazard is eliminated, and then enters the dangerous area.
Now the safety device could not be able to prevent or avoid an unexpected restart of the machine with the operator
still present inside the dangerous area.
Risk: probability of occurrence of an injury and severity of the injury itself.
Block condition (=BREAK): status of the light curtain taking place when a suitably-sized opaque object (see
cfr.XREF-1:313]) interrupts one or several light curtain beams.
Under these conditions, OSSD1 and OSS2 light curtain outputs are simultaneously switched OFF within the device
response time.
Safe State: operating state of ESPE when at least one beam is intercepted, OSSD LED lit RED in [INLINE-1:44
light curtain. OSSD1 and OSSD2 are both switched OFF.
Response time: maximum time between the occurrence of the event leading to the actuation of the sensing
device and the output signal switching devices (OSSD) achieving the OFF-state
Test piece: opaque object having a suitable size and used to test safety light curtain correct operation.
Type (of ESPE): the Electro-sensitive Protective Equipment (ESPE) have different reactions in case of faults or
under different environmental conditions.
The classification and definition of the "type" (ex. type 2, type 4, according to EN 61496-1: 2013) defines the
minimum requirements needed for ESPE design, manufacturing and testing.
Dangerous area: area representing an immediate or imminent physical hazard for the operator working inside it or
who could get in contact with it.