Datalogic SG2-30-015-OO-X User manual

ORIGINAL INSTRUCTIONS (ref. 2006/42/EC)
Datalogic S.r.l.
Via S. Vitalino 13
40012 Calderara di Reno
Italy
“SG2 BASE” Instruction Manual
Ed.: 07/2017 Rev.B
© 2012 –2017 Datalogic S.p.A. and/or its affiliates ALL RIGHTS RESERVED. Without limiting the rights
under copyright, no part of this documentation may be reproduced, stored in or introduced into a retrieval
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permission of Datalogic S.p.A. and/or its affiliates.
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.

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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1GENERAL INFORMATION........................................................................................................ 7
1.1 General description..................................................................................................................... 7
1.2 Package contents ....................................................................................................................... 8
1.3 New features compared to SF2 series ....................................................................................... 9
1.4 How to choose the device.........................................................................................................10
1.4.1 Detection capability...................................................................................................................10
1.4.2 Height of the detection zone.....................................................................................................11
1.4.3 Minimum installation distance................................................................................................... 12
1.5 Typical applications................................................................................................................... 15
1.6 Safety information.....................................................................................................................17
2INSTALLATION........................................................................................................................ 18
2.1 Precautions to be observed for the choice and installation ......................................................18
2.2 General information on device positioning................................................................................19
2.2.1 Minimum distance from reflecting surfaces ..............................................................................20
2.2.2 Distance between homologous devices ...................................................................................22
2.2.3 Emitter and Receiver Orientation.............................................................................................. 24
2.2.4 Use of deviating mirrors............................................................................................................ 25
2.2.5 Controls after first installation....................................................................................................26
3MECHANICAL MOUNTING ..................................................................................................... 27
4ELECTRICAL CONNECTIONS................................................................................................ 29
4.1 Pin-out and configuration pin connection.................................................................................. 29
4.2 Notes on connections ............................................................................................................... 30
4.3 Earth connection....................................................................................................................... 32
5ALIGNMENT PROCEDURE..................................................................................................... 33
5.1 Correct alignment procedure ....................................................................................................35
6FUNCTIONS SETTING ............................................................................................................ 36
6.1 Reset mode............................................................................................................................... 36
7FUNCTIONS............................................................................................................................. 37
7.1 Test........................................................................................................................................... 37
7.2 Reset.........................................................................................................................................37
8USER INTERFACE AND DIAGNOSTICS ............................................................................... 38
8.1 User interface............................................................................................................................ 38
8.2 Diagnostic messages................................................................................................................39
9PERIODICAL CHECKS............................................................................................................ 40
9.1 General information and useful data......................................................................................... 41
9.2 Warranty....................................................................................................................................41
10 DEVICE MAINTENANCE......................................................................................................... 42
10.1 Product disposal .......................................................................................................................42
11 TECHNICAL DATA .................................................................................................................. 43
12 AVAILABLE MODELS............................................................................................................. 44
13 OVERALL DIMENSIONS......................................................................................................... 46
14 INCLUDED ACCESSORIES .................................................................................................... 47

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15 ACCESSORIES........................................................................................................................ 48
15.1 (ST-KSTD) Metal angled fixing bracket....................................................................................48
15.2 (ST-KPxMP) Plastic angled fixing bracket................................................................................50
15.3 (ST-K4ROT) Metal rotating fixing bracket.................................................................................52
15.4 (SG-PSB) Protective stands ..................................................................................................... 53
15.5 (SG-P) Plate kit for protective stands ....................................................................................... 54
15.6 (SE-S) Columns and floor stands .............................................................................................55
15.7 (SG-DM) Deviating mirrors ....................................................................................................... 56
15.8 (SG-IP69K) PMMA protection tubes......................................................................................... 58
15.9 (SG-LS) PMMA lens shield.......................................................................................................59
15.10 (TP) Test piece .........................................................................................................................60
15.11 Connection cables ....................................................................................................................61
15.12(SG-LP) Laser pointer...............................................................................................................62
15.13 (SE-SR2) Safety relay...............................................................................................................63
15.14 63
16 GLOSSARY.............................................................................................................................. 64

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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:
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 safety-
related 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.
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 29.
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 38).
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
33).
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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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 38).
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
Notes and detailed descriptions about particular characteristics of the safety devices in
order to better explain their functioning. Special instructions regarding the installation
process.

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1.3 NEW FEATURES COMPARED TO SF2 SERIES
The SF2 safety light curtains, compared to the SG series, present the following new features:
Increased operating distance
Range enlargement with 150 to 1800 mm controlled heights
Reduced response times
New fastening system with rotating brackets
New mechanical profile compatible with SE accessories
Different positioning of synchronisation optics (the first one from the reference line)
Different mechanical mounting

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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.
R=30 mm
Hand protection
R = 50 mm
R = 90 mm
Presence control
As shown in Fig 1 - page 10, 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.
Fig 1 - Detection capability
The resolution value is obtained applying the following formula:
R = I + d
where:
I=Interaxes between two adjacent optics
d=Lens diameter

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1.4.2 Height of the detection zone
The controlled height is the height protected by the safety light curtain.
Fig 2 - Detection Zone
Model 30mm
Model 50mm
Model 90mm
Controlled height
Hp (mm)
SG2-30-015-OO-X
-
-
150
SG2-30-030-OO-X
SG2-50-030-OO-X
SG2-90-030-OO-X
300
SG2-30-045-OO-X
SG2-50-045-OO-X
SG2-90-045-OO-X
450
SG2-30-060-OO-X
SG2-50-060-OO-X
SG2-90-060-OO-X
600
SG2-30-075-OO-X
SG2-50-075-OO-X
SG2-90-075-OO-X
750
SG2-30-090-OO-X
SG2-50-090-OO-X
SG2-90-090-OO-X
900
SG2-30-105-OO-X
SG2-50-105-OO-X
SG2-90-105-OO-X
1050
SG2-30-120-OO-X
SG2-50-120-OO-X
SG2-90-120-OO-X
1200
SG2-30-135-OO-X
SG2-50-135-OO-X
SG2-90-135-OO-X
1350
SG2-30-150-OO-X
SG2-50-150-OO-X
SG2-90-150-OO-X
1500
SG2-30-165-OO-X
SG2-50-165-OO-X
SG2-90-165-OO-X
1650
SG2-30-180-OO-X
SG2-50-180-OO-X
SG2-90-180-OO-X
1800

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1.4.3 Minimum installation distance
The safety device must be positioned at a specific safety distance (Fig 3 - page 12).
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
Fig 3 - Installation distance (vertical positioning)
The following formula is used for the calculation of the safety distance:
S = K (t1 + t2) + C
where:
S
=
Minimum safety distance in mm
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 43)
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

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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 4 - page 13) 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:
S
=
Minimum safety distance in mm.
t1
=
Response time of the ESPE in seconds (cfr. TECHNICAL DATA page 43)
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.
Fig 4 - Installation distance (horizontal positioning)

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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:
S
=
Minimum safety distance in mm.
t1
=
ESPE response time
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
In all cases, if K = 2000mm/sec then S will be > 500 mm.
Distance will have then to be recalculated using K = 1600 mm/sec.
SG2-30-060
SG2-50-060
SG2-90-060
T
0.398 sec
0.393 sec
0.391 sec
C
128 mm
850 mm
850 mm
S
764.8 mm
1478.8 mm
1475.6 mm
To calculate the distance of the device from the ESPE, in a horizontal position, the following formula is used:
S = 1600 * T + 1200 - 0.4 * H
where:
H
=
Beam min. height from ground 15 * (R –50)
R
=
Resolution of the device
SG2-30-060
SG2-50-060
SG2-90-060
-
-
0.3 sec
0.391 sec
H
-
0 mm
600 mm
S
-
1828.8 mm
1585.6 mm
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.

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1.5 TYPICAL APPLICATIONS
The safety light curtains of the SG series are used in all automation fields where the control and protection of the
access to dangerous areas are necessary.
In particular, they are used to stop the moving of mechanical parts in:
Automatic machines;
Machines for packaging, material handling, storing;
Weaving machines, wood working machines, ceramic working machines;
Automatic and semiautomatic assembly lines;
Automatic warehouses.
Example 1: Hand protection on moulding machine
In order to protect the light curtain against dust and humidity, the IP69K protective enclosure is used.
The aim is to prevent operator hands from being squashed during the final product stacking process. In addition,
the solution must not interfere with the manufacturing process.
Working premises are characterised by a humidity of 85% and a temperature of 25 °C.
Moreover, washing with cold high-pressure waterjets is frequent, as well as the use of alkaline detergents or acids.
Cold water rinsing jets (5 - 10 °C) are also used at a pressure of 40 bar.
Solution: IP69K protection, made of a PMMA acrylic tube with v4a stainless steel caps, offers an effective solution
without trapping dirt or contamination. The cap’s O’ring prevents water or dirt from entering the tube and at the
same time, prevents also internal condensation.
The cable connection is protected and fixed by a PG gland that prevents water or dirt from entering the tube.
Advantages: the serie SG protective enclosure (optional) ensures a reliable protection of the light curtains even in
extreme environmental conditions.
Not only does the IP69K protective enclosure meet hygiene, washing resistance, availability and safety
requirements, but also ergonomic and productivity requirements, as the protected area remains always accessible
when the machine is stopped.
Fig 5 - Hand protection on moulding machine
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.

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Example 2: Cooling and air conditioning systems
Cooling and air conditioning systems, as well as automotive equipment and components, are checked inside a
machine to detect possible leaks using a helium mass spectrometer. The point where these parts are positioned
inside the measuring chamber, requires a Type 2 protection ensuring space reduction and safe access to the
protected area.
Solution: SG series safety light curtain represents is the ideal solution considering the requirements and
application. The test machine is immediately stopped even when just one of the light curtain beams is interrupted.
Advantages: the SG light curtain meets the customer needs when easy access is necessary in presence of
machine stops. Easy installation, configuration and use are other advantages.
Fig 6 - Cooling and air conditioning systems
Example 3: Automatic warehouses
Operator protection in automatic warehouses.
Solution: the SG safety light curtain series represents the ideal solution if the safety requirements and the
application are considered. When even just one of the light curtain beams is interrupted, the carousel is
immediately stopped.
Advantages: the SG light curtain meets the customer's needs when easy access is necessary in presence of
machine stops. Easy installation, configuration and use are other advantages.
Fig 7 - Automatic warehouses

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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 12 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 18, MECHANICAL
MOUNTING page 27, ELECTRICAL CONNECTIONS page 29, ALIGNMENT PROCEDURE page 33) 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 18).
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.
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.

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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 43.
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.
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.

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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.
Fig 8 - Wrong light curtain positioning
Fig 9 - Correct light curtain positioning
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 11 - page 19.
Fig 10 - Wrong light curtain positioning
Fig 11 - Correct light curtain positioning
Fig 8 - page 19 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 9 - page 19) becomes necessary.
If the operator is able to enter in the dangerous area, an additional mechanical
protection must be mounted to prevent the access.

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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.
Fig 12 - Distance from reflecting surfaces
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°)