Datalogic SG2 BASE Series User manual

SG2 MUTING
Instruction Manual

ORIGINAL INSTRUCTIONS (ref. 2006/42/EC)
Datalogic Automation S.r.l.
Via Lavino, 265
40050 - Monte S. Pietro
Bologna - Italy
“SG2 MUTING” Instruction Manual
Ed.: 02/2014 rev.A
© 2012-2014 Datalogic Automation S.r.l. ALL RIGHTS RESERVED. Protected to the fullest extent
under U.S. and international laws. Copying, or altering of this document is prohibited without express
written consent from Datalogic Automation S.r.l.
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 brand and product names mentioned herein are for identification purposes only and may be
trademarks or registered trademarks 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.
03/02/14

iv
CONTENTS
GENERAL VIEW........................................................................................................vii
LED DESCRIPTION ....................................................................................................vii
1GENERAL INFORMATION ..............................................................................................1
1.1General Description.................................................................................................... 1
1.1.1General Description of the safety light curtains ..............................................1
1.1.2Package Contents .......................................................................................... 3
1.2New features compared to SG2-B/E ..........................................................................3
1.3How to Choose the Device.........................................................................................4
1.3.1Resolution.......................................................................................................4
1.3.2Controlled height............................................................................................. 5
1.3.3Minimum installation distance.........................................................................6
1.4Typical Applications.................................................................................................... 8
1.5Safety informations..................................................................................................... 8
2INSTALLATION................................................................................................................9
2.1Precautions to be observed for the choice and installation ........................................ 9
2.2General Information on Device Positioning .............................................................. 10
2.2.1Minimum distance from reflecting surfaces................................................... 11
2.2.2Distance between homologous devices .......................................................12
2.2.3Emitter and Receiver Orientation..................................................................15
2.2.4Use of deviating mirrors................................................................................15
2.2.5Checks after first installation.........................................................................16
3MECHANICAL MOUNTING............................................................................................18
4ELECTRICAL CONNECTIONS......................................................................................20
4.1Notes on connections............................................................................................... 22
5ALIGNMENT PROCEDURE...........................................................................................25
6FUNCTION SETTING .....................................................................................................27
6.1Reset to Factory configuration .................................................................................27
6.2Function List .............................................................................................................28
7FUNCTIONS ...................................................................................................................30
7.1Restart mode............................................................................................................ 30
7.2Test ..........................................................................................................................32
7.3Reset ........................................................................................................................33
7.4EDM .........................................................................................................................33
7.5EDM SELECTION .................................................................................................... 35
7.6Reduction range .......................................................................................................35
7.7Muting.......................................................................................................................36
7.7.1Muting function disable ................................................................................. 37
7.7.2Muting signalling devices.............................................................................. 37
7.7.3Typical muting application and sensor connection .......................................37
7.7.4Muting direction ............................................................................................ 37
7.7.5Muting timeout .............................................................................................. 40
7.7.6Partial muting................................................................................................ 41

v
7.8Override.................................................................................................................... 42
7.8.1Override mode .............................................................................................. 43
7.8.2Override timeout ...........................................................................................44
8DIAGNOSTIC..................................................................................................................45
8.1User interface ...........................................................................................................45
9PERIODICAL CHECKS..................................................................................................48
9.1GENERAL INFORMATION AND USEFUL DATA.................................................... 48
9.2WARRANTY............................................................................................................. 49
10DEVICE MAINTENANCE ...............................................................................................50
10.1Product disposal.............................................................................................. 50
11TECHNICAL DATA.........................................................................................................51
12LIST OF AVAILABLE MODELS.....................................................................................52
13OVERALL DIMENSIONS ...............................................................................................53
14OUTFIT ...........................................................................................................................54
15ACCESSORIES ..............................................................................................................56
15.1Brackets fixing .................................................................................................56
15.2Muting lamp..................................................................................................... 58
15.3Deviating mirrors .............................................................................................59
15.4Columns and floor stands................................................................................ 61
15.5Lens shield (PMMA) ........................................................................................ 62
15.6Protective stands............................................................................................. 63
15.7Plate for protective stands............................................................................... 64
15.8Test Piece ....................................................................................................... 64
15.9SG4-Dongle Ethernet adaptor......................................................................... 65
15.10Safety relay ..................................................................................................... 66
15.11connection cables............................................................................................ 67
15.12Muting Arms ....................................................................................................69
GLOSSARY................................................................................................................72

vi
FIGURES INDEX
Fig. 1 – Resolution...................................................................................................... 4
Fig. 2 – Controlled height............................................................................................ 5
Fig. 3 – Minimum installation distance (vertical) ......................................................... 6
Fig. 4 – Minimum installation distance (horizontal) ..................................................... 7
Fig. 5 – Incorrect device positioning ......................................................................... 10
Fig. 6 – Correct device positioning ........................................................................... 10
Fig. 7 ........................................................................................................................ 11
Fig. 8 ........................................................................................................................ 11
Fig. 9 – Minimum distance from reflecting surfaces.................................................. 11
Fig. 10 ...................................................................................................................... 12
Fig. 11 – Distance between homologous devices..................................................... 12
Fig. 12 ...................................................................................................................... 13
Fig. 13 – Interference between adjacent light curtains ............................................. 14
Fig. 14 – Light curtains orientation............................................................................ 15
Fig. 15 – Use of deviating mirrors............................................................................. 15
Fig. 16 – Path of the test piece ................................................................................. 16
Fig. 17 – Fixed brackets mounting procedure........................................................... 18
Fig. 18 – Anti-vibration dampers............................................................................... 18
Fig. 19 – Light curtain dimensions ............................................................................ 19
Fig. 20 – Connection to safety relay ......................................................................... 22
Fig. 21 – Correct connection of the load................................................................... 23
Fig. 22 – Incorrect connection of the load (I) ............................................................ 23
Fig. 23 – Incorrect connection of the load (II) ........................................................... 23
Fig. 24 – Incorrect connection of the load (III) .......................................................... 23
Fig. 25 – Behaviour of OSSDs.................................................................................. 24
Fig. 26 – Description of the beams ........................................................................... 25
Fig. 27 – Alignment timings ...................................................................................... 25
Fig. 28 – Restart timings (auto) ................................................................................ 30
Fig. 29 – Restart connection (auto) .......................................................................... 30
Fig. 30 – Restart timings (manual)............................................................................ 31
Fig. 31 – Restart connection (manual)...................................................................... 31
Fig. 32 – Test timings ............................................................................................... 32
Fig. 33 – Reset timings............................................................................................. 33
Fig. 34 – EDM timings .............................................................................................. 34
Fig. 35 – EDM connection ........................................................................................ 34
Fig. 36 – Reduction Range ....................................................................................... 35
Fig. 37 – Examples of muting application ................................................................. 36
Fig. 38 – Typical Muting Application ......................................................................... 37
Fig. 39 – T muting timings ........................................................................................ 38
Fig. 40 – T muting connection .................................................................................. 39
Fig. 41 – L muting timings......................................................................................... 39
Fig. 42 – L muting connection................................................................................... 40
Fig. 43 – Muting timeout ........................................................................................... 40
Fig. 44 – Override connection................................................................................... 42
Fig. 45 – Override timings (level trigger)................................................................... 43
Fig. 46 – Override timings (edge trigger) .................................................................. 43
Fig. 47 – Override timeout timings............................................................................ 44

vii
GENERAL VIEW
SG2 MUTING
LED DESCRIPTION
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 chapter 6 and 8).

GENERAL INFORMATION
1
1
1 GENERAL INFORMATION
1.1 GENERAL DESCRIPTION
1.1.1 General Description of the safety light curtains
The safety light curtains of the SG2 series 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 of the SG2 series are Type 2 intrinsic safety systems used as accident-
prevention protection devices and are manufactured in accordance with the international
Standards in force for safety, in particular:
EN 61496-1/AC: 2010 Safety of machinery: electrosensitive protective equipment.
Part 1: General prescriptions and tests.
IEC 61496-2: 2006 Safety of machinery: electrosensitive protective equipment -
Particular requirements for equipment using active optoelectronic
protective devices.
EN ISO 13849-1:2008 (Cat.4, PL e) Safety of machinery. Safety-related parts of control
systems.
Part 1: General principles for design
EN 61508-1: 1998 (SIL 3) Functional safety of electrical/electronic/programmable
electronic safety-related systems.
Part 1: General requirements
EN 61508-2: 2000 (SIL 3) Functional safety of electrical/electronic/programmable
electronic safety-related systems.
Part 2: Requirements for electrical/electronic/programmable electronic
safety-related systems
EN 61508-3: 1998 (SIL 3) Functional safety of electrical/electronic/programmable
electronic safety-related systems.
Part 3: Software requirements
EN 61508-4: 1998 (SIL 3) Functional safety of electrical/electronic/programmable
electronic safety-related systems.
Part 4: Definitions and abbreviations
EN 62061: 2005 (SIL CL3) Safety of machinery. Functional safety of electrical/
electronic/programmable electronic safety-related control systems.
The device, consisting of one emitter and one receiver housed inside strong 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 a M12 connector located in the lower
side of the profile. 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 (see chapter 8 “Diagnostic”).
The device consists in 2 units that, according to the model, are composed by one or several
emitting and receiving modules. The receiver is the main controller for all functions. It
monitors all safety actions in case of failure and performs general functions as well.

SG2 MUTING INSTRUCTION MANUAL
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1
During installation, an user interface facilitates the alignment of both units (see chapter 5
“Alignment procedure”).
As soon as an object, 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 and
blocks the MPCE machine (if correctly connected to the OSSD).
Some parts or sections of this manual containing important information for the user or
installing operator are preceded by a note:
The information provided in the paragraphs following this symbol is very
important for safety and may prevent accidents.
Always read this information accurately and carefully follow the advice to
the letter.
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 SG light curtains and the safety rules that regulate the correct installation
(see chapter 9).

GENERAL INFORMATION
3
1
1.1.2 Package Contents
Package contains the following objects:
 Receiver (RX)
 Emitter (TX)
 Installation Quick Guide of SG2 MUTING curtain
 Biannual checklist and periodical maintenance schedule
 CD with instruction manual and other documents
 4 angled fixing brackets and specific fasteners
 2 angled fixing brackets for models with heights included between 1200 and 1800 mm
1.2 NEW FEATURES COMPARED TO SG2 BASE/EXTENDED
With respect to SG2 BASE/EXTENDED series, safety light curtains of SG2 MUTING series
have some new important features:
 Higher operating distance
 New profile compatible with SE accessories
 New fastening system with rotating brackets
 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)

SG2 MUTING INSTRUCTION MANUAL
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1
1.3 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.
1.3.1 Resolution
The resolution of the device is the minimum dimension that an opaque object must have in
order to obscure at least one of the beams that constitute the sensitive area.
The resolution strictly depends on the part of the body to be protected.
R = 30 mm hand protection
Type 2
As shown in Fig. 1, 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.
Protected
height
Fig. 1 – Resolution
The resolution value is obtained applying the following formula:
R = I + d
where:
I = Distance between two adjacent optics
d = Lens diameter

GENERAL INFORMATION
5
1
1.3.2 Controlled height
The controlled height is the height protected by the safety light curtain
Fig. 2 – Controlled height
The height controlled by the SG2 MUTING is the whole height of the light curtain. Referring
to the figure above the protected height is reported in the table here below.
Model Protected height (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

SG2 MUTING INSTRUCTION MANUAL
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1
1.3.3 Minimum installation distance
The safety device must be positioned at a specific safety distance (Fig. 3).
This distance must ensure that the dangerous area cannot be reached before the dangerous
motion of the machine has been stopped by the ESPE.
The safety distance depends on 4 factors, according to the ISO 13855/EN 999 Standard:
Response time of the ESPE (the time between the effective beam interruption and the
opening of the OSSD contacts)
Machine stopping time (the time between the effective opening of the contacts of the ESPE
and the real stop of the dangerous motion of the machine)
ESPE resolution
Approaching speed of the object to be detected
Fig. 3 – Minimum installation distance (vertical)
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 chapter 11)
t2 = Machine stopping time in seconds
d = Resolution of the 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 (d -14) for devices with resolution ≤40 mm
C = 850 mm for devices with resolution > 40 mm
NOTE: 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
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), 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

GENERAL INFORMATION
7
1
where:
S = Minimum safety distance in mm.
t1 = Response time of the ESPE in seconds (see chapter 11)
t2 = Machine stopping time in seconds.
H = Beam height from ground; this height must always be less than 1,000 mm.
Fig. 4 – Minimum installation distance (horizontal)
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:
T = t1+ t2
t1= ESPE response time + SE-SR2 relay release time (max 80 ms)
t2= Machine total stopping time.
C = 8 * (d – 14) for devices with resolution <= 40 mm
D = resolution
In all cases, if K = 2000mm/sec then S > 500 mm. Distance will have then to be recalculated
using K = 1600 mm/sec.
WARNING: The reference standard is ISO 13855/EN 999 “Machine
safety - the positioning of the protective device based on the
approaching speed of the human body”.
The following information is to be considered as indicative and
concise. For correct safety distance please refer to complete standard
ISO 13855/EN 999.
The following information is to be considered as indicative and concise.
For correct safety distance please refer to complete standard ISO 13855/EN 999.

SG2 MUTING INSTRUCTION MANUAL
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1
1.4 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 AUTOMATION 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.
Automatic packaging machines Presses and punching machines Benders and cutters
1.5 SAFETY INFORMATIONS
For a correct and safe use of the safety light curtains of the SG2
series, the following points must be observed:
 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 reported in par. 1.3.3 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 (see
chapters 2, 3, 4, 5) 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 (see
chapters 2, 3)
 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 and Reset operations
Please carefully read the instructions for the correct functioning before powering the light
curtain.

INSTALLATION
9
2
2 INSTALLATION
2.1 PRECAUTIONS TO BE OBSERVED FOR THE CHOICE AND
INSTALLATION
Make sure that the protection level assured by the SG2 device (Type 2)
is compatible with the real danger level of the machine to be
controlled, according to EN 954-1 and EN 13849.
 Use only matched pair 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 a room complying with the technical characteristics
indicated in chapter 11.
 Do not install anything close to strong and/or flashing light sources or close to similar
devices
 The presence of intense electromagnetic disturbances could affect device’s correct
operation. This condition shall be carefully assessed by seeking 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 so jeopardise functioning

SG2 MUTING INSTRUCTION MANUAL
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2
2.2 GENERAL INFORMATION ON DEVICE POSITIONING
The safety light curtain should be carefully positioned, in order to reach a very high protection
standard; access to the dangerous area must only be possible by passing through the
protecting safety light beams.
Fig. 5 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 a sufficient height
in order to completely cover the access to the dangerous area (Fig. 6)
becomes necessary.
Fig. 5 – Incorrect device positioning
Fig. 6 – Correct device positioning
Under standard operating conditions, machine starting must not be possible while operators
are inside the dangerous area.
When the installation of the safety light curtain very near to the dangerous area is not
possible, a second light curtain must be mounted in a horizontal position in order to prevent
any lateral access, as shown in Fig. 8.
If the operator is able to enter in the dangerous area, an additional
mechanical protection must be mounted to prevent the access.
NO
YES

INSTALLATION
11
2
Fig. 7 Fig. 8
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.
DANGEROUS AREA
Reflecting surface
Reflecting surface
Fig. 9 – Minimum distance from reflecting surfaces
It is important to position the safety light curtain according to the minimum distance from
reflecting surfaces.
NO YES

SG2 MUTING INSTRUCTION MANUAL
12
2
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° (= ± 5°)
Diagram of Fig. 10 shows the minimum distance from the reflecting surface (Dsr), based on
the operating distance:
Fig. 10
The formula to get Dsr is the following:
Dsr (m) = 0.6 for operative distances < 3 m
Dsr (m) = operating distance (m) x tg 2for operative distances 3 m
2.2.2 Distance between homologous devices
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 emitter-receiver couple axis.
Fig. 11 – Distance between homologous devices
This minimum Ddo distance depends on:
 the operating distance between emitter (TXA) and receiver (RXA)
 the effective aperture angle of the ESPE (EAA)
Operating distance from reflecting surface(Dsr)
Operating distance

INSTALLATION
13
2
The following graphic shows the distance from the interfering devices (Ddo) according to the
operating distance (Dop) of the couple ( TXA – RXA ).
Fig. 12
The following table shows, for convenience, the values of the minimum installation distances
relative to some operating distances:
Operating distance (m) Minimum installation distance (m)
3 0,3
6 0,4
10 0,5
19 0,6
WARNING: the interfering device (TXB) must be positioned at the same
Ddo distance, calculated as shown above, even if closer to TXA
respect to RXA.
When several safety devices have to be installed in adjacent areas, the interference between
the emitter of one device and the receiver of the other must be avoided.
Homologous devices distance (Ddo)